Information and Communication
Technology-Enabled Modern Services Export
Performances of Asian Economies
∗
SHAHBAZ NASIR AND KALIAPPA KALIRAJAN
Advancements in information and communication technology (IKT) have
expanded the possibilities for trade in modern services. Many emerging and
developed Asian economies are increasingly participating in these new trade
Aktivitäten. This study examines the export performances of emerging and
developed Asian economies in selected modern services—computer and
Information, business and professional, and telecommunications—using a
stochastic frontier gravity model. Estimation results show that the performances
of emerging economies in South Asia and the Association of Southeast Asian
Nationen (ASEAN), in terms of realization of export potential, are considerably
weaker than those of developed economies in North America and Europe. Der
results show that the number of graduates and the quality of ICT infrastructure
in emerging economies are among the key factors in realizing services export
Potenzial. These findings suggest that emerging economies need to remove
behind-the-border constraints and adopt advanced technologies to catch up with
high-performing developed economies.
Schlüsselwörter: Asien, Europa, Nordamerika, service exports, stochastic frontier
gravity model
JEL-Codes: C24, F14
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ICH. Einführung
In der Vergangenheit 2 decades, technological developments, the liberalization of the
services trade, and the rising share of services in most economies have resulted in
the increasing globalization of services. In terms of world gross domestic product
(BIP), the share of services increased from 59% In 1985 Zu 71% In 2011, underlying
the tremendous scope for trade in services. Auch, unprecedented advancements in
information and communication technology (IKT) have made it possible to provide
many services across borders without the physical movement of persons. Im
∗Shabaz Nasir: former Research Associate, Asian International Economists Network of the former Office of Regional
Economic Integration, Asiatische Entwicklungsbank (ADB). Email: shahbaz.nasir@alumni.anu.edu.au; Kaliappa
Kalirajan (Korrespondierender Autor): Professor, Crawford School of Public Policy, Australian National University.
Email: kaliappa.kalirajan@anu.edu.au. The authors would like to thank the managing editor and two anonymous
referees for helpful comments and suggestions. An earlier version of this paper was published in November 2014 als
ADB Working Paper Series on Regional Economic Integration No. 143. Es gilt der übliche Haftungsausschluss.
Asiatischer Entwicklungsbericht, Bd. 33, NEIN. 1, S. 1–27
C(cid:3) 2016 Asiatische Entwicklungsbank
und Institut der Asiatischen Entwicklungsbank
2 ASIAN DEVELOPMENT REVIEW
Literatur, modern services are broadly defined as commercial services excluding
the traditional services of transport and travel (Ghani 2010, Ghani and Anand
2009). ICT advances have revolutionized trade possibilities in modern services,
especially telecommunications, computer and information, banking, insurance, Und
other business services. Given these developments, modern services exports are
growing more rapidly than traditional services exports, reaching $2.3 trillion in 2011. In 2011, the share of modern services was 54% of the total services trade, an increase from 35% In 1990. Gesamt, the modern services trade is growing even faster than the goods trade. Seit 1990, the modern services trade has increased nearly eightfold compared with a fivefold increase in the goods trade.1 The economies of South Asia, Ostasien, and the Association of Southeast Asian Nations (ASEAN) are increasingly participating in the growing market for modern services exports. South’s Asia share of global exports of computer and information services increased from 10% In 2000 to over 25% In 2011. Jedoch, there are differences in export growth across economies and within economies across different modern services exports. Zum Beispiel, in 2000–2011, India and Pakistan experienced significant growth in the export of business and professional services (BPS), while there was slow growth in these exports from Indonesia and Malaysia over the same period. In der Zwischenzeit, Malaysia has invested heavily in infrastructure, including the creation of an entire city, Cyberjaya, to promote ICT-related production and exports.2 To what extent have economies involved in the export of computer and information services and BPS reached their potential? How are economies in South Asia and ASEAN performing with respect to their peers and the developed world in terms of utilization of export potential in modern services? This analysis is important for emerging economies that are experiencing an increase in services exports as a share of their overall economic growth. The efficient utilization of an economy’s export potential increases its exports and overall economic growth. The analysis of export potential also has useful policy implications for export growth: economies with lower rates of utilization of their potential bilateral services exports first need to remove behind-the-border constraints before adopting the advanced technologies and trade practices of high-performing economies. Außerdem, economies that are close to their potential should exert more effort in research and development (R&D) and the development of new technologies to shift their potential frontiers. Developments in modern services have attracted much research, particularly on the issue of job losses in the developed world due to the outsourcing of services to emerging economies. To our knowledge, no study has analyzed the modern services export potential of emerging economies, although there are a limited number of studies on the estimation of gravity models for modern services. Most studies 1Figures are based on data from the World Bank (2012). 2Cyberjaya is an ICT-themed city in Malaysia with state-of-the-art infrastructure and ICT systems. l D o w n o a d e d von h t t p : / / Direkte . m i t . / e d u a d e v / Kunst – p d l f / / / / / 3 3 1 1 1 6 4 1 5 5 7 a d e v _ a _ 0 0 0 5 9 p d . f by gu e s t o n 0 9 S e p e m b e r 2 0 2 3 ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 3 use aggregate levels of the services trade and have less coverage of exports from emerging economies. Gr¨unfeld and Moxnes (2003), Mirza and Nicoletti (2004), and Kimura and Lee (2006) find gravity estimates only for aggregate services and goods using an Organisation for Economic Co-operation and Development (OECD) dataset for up to 20 OECD reporting economies. Another study by Head, Mayer, and Ries (2009) calculates the gravity estimates for other commercial services, IKT, and miscellaneous business services using Eurostat data for the period 1992–2006.3 However, bilateral coverage of data for most economies before 2000 is small, which may influence estimations. Services are different from goods in terms of restrictions on trade. Due to the specific nature of various services and the different modes of supply, domestic regulations are the primary restrictions on services trade (World Trade Organization [WTO] 2012). Specific discriminatory regulations in services sectors can have negative effects on trade flows. Licensing requirements, quotas on foreign providers, and cumbersome procedures are some of the regulations that can reduce potential trade in professional services. One of the limitations with aggregate services analysis is that we cannot analyze the impact of sector-specific services trade restrictions on services exports. Zum Beispiel, Gr¨unfeld and Moxnes (2003) use the Services Trade Restrictiveness Index (STRI) developed by Findlay and Warren (2000), but their analysis was inherently biased because these STRIs only cover 35% of total services. Kimura and Lee (2006), using 1999–2000 data for 10 OECD economies, apply the Economic Freedom of the World Index as a crude proxy for barriers to trade in services.4 A recent study by Nordas (2008) uses sector-specific STRIs and estimates a gravity type model at a disaggregated level for computer and information services and business services. Andererseits, Kopf, Mayer, and Ries (2009) do not include services trade restrictions in their gravity model specification. With regard to the impacts of outsourcing on the labor markets of those economies demanding the services provided through outsourcing, most of the theoretical models discussed in Francois and Hoekman (2010) have predicted positive gains for high-skilled wages in the United States (US) market and a marginal impact on low-skilled jobs. The characteristics of services vary between categories. Zum Beispiel, the nature of BPS is very different from that of transport services. daher, aggregate analysis used in earlier studies, with due acknowledgement, is of limited use for policy makers. The quality and coverage of services data has improved only recently. In earlier studies, the limited number of observations at the disaggregated level might have compromised the estimations. daher, the current study is expected to contribute in three ways. Erste, it provides a systematic analysis of the performances of emerging economies in modern services exports in terms of utilization of their 3Other commercial services are calculated by subtracting transport, travel, and government services from total services. 4These economies report services trade data for most of their partner economies. l D o w n o a d e d von h t t p : / / Direkte . m i t . / e d u a d e v / Kunst – p d l f / / / / / 3 3 1 1 1 6 4 1 5 5 7 a d e v _ a _ 0 0 0 5 9 p d . f by gu e s t o n 0 9 S e p e m b e r 2 0 2 3 4 ASIAN DEVELOPMENT REVIEW potential, using the stochastic gravity frontier approach. Zweite, it uses a larger and more complete dataset than those used in earlier studies. Endlich, it explains the potential and determinants of modern services exports at a disaggregated level. Developments in ICT have made it possible for emerging economies to exploit their comparative advantage in some modern services. The driving force for this comparative advantage is the large pool of semiskilled and skilled graduates in emerging economies who can deliver their services across borders using advanced communication technologies. Trade in services can take different forms. Services can be an intermediate or a final product, and services can be delivered through a foreign presence or via cross-border trade using communication networks. This study focuses on modern services that are delivered largely through cross-border trade; outsourcing has contributed to the increase in these exports from emerging economies (Bhagwati, Panagariya, and Srinivasan 2004). Feenstra (2008) notes that developing economies also outsource services to developed economies for high value-added and high-end tasks. Zum Beispiel, the software industries in India and Pakistan import the services of US professionals for tasks for which domestic expertise is scarce. In diesem Kontext, tight restrictions on other modes of supply drive businesses to pursue cross-border transactions to the point that the possibility of measured flows being higher than they would be otherwise may not be completely ruled out. Jedoch, it is not an issue in this paper because what is discussed here concerns the export potential of the modern services trade of selected economies for given levels of determinants including technical knowledge and capacity. The objective of this study is to gauge, for those given determinants of the modern services trade, maximum possible trade and the gap between such a maximum and actual trade. Daher, in a way, this is a demand-side analysis. The remainder of the paper is structured as follows. The next two sections provide information about the size and structure of the services trade and details on the data availability of bilateral services trade flows. Section IV briefly discusses the analytical framework for the estimation of the services trade. The discussion concerns the application of the stochastic frontier approach to gravity modeling along with details of explanatory variables included in the empirical model. The results of the maximum likelihood estimation and export performances are also discussed in this section. A final section presents the overall conclusions of this study. II. Trends in Services Trade The services sector has been the most dynamic segment of the global economy over the last decade. In the domestic economy, services’ share of the GDP of middle- and high-income economies has been rising. The sector accounted for 72% of global GDP growth in 2001–2011. In the external economy, services have been dominating the landscape of both trade and foreign direct investment. Most foreign l D o w n o a d e d f r o m h t t p : / / Direkte . m i t . / e d u a d e v / Kunst – p d l f / / / / / 3 3 1 1 1 6 4 1 5 5 7 a d e v _ a _ 0 0 0 5 9 p d . f by gu e s t o n 0 9 S e p e m b e r 2 0 2 3 ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 5 direct investment in the last decade has been in the services sector as growth of the modern services trade has surpassed growth in the goods trade. At the aggregate level, total world trade in commercial services increased from $0.82 trillion in 1990
Zu $4.3 trillion in 2011, representing growth of about 424%. The modern services trade is the main source of this growth with a current volume of over $2.3 trillion,
which covers more than 54% of the total global services trade. High-income
economies remain the dominant players in commercial services with a share of
um 80% of world trade in 2011, down from about 87% In 1990.
Modern services exports also showed smaller contractions compared with
goods exports during the global financial crisis in 2007–2009. In order to understand
Asia’s sustained services export growth rates and rapid recovery from the global
financial crisis, it is important to analyze the sectoral composition of the contraction
in global trade and final demand during this period (Bems, Johnson, and Yi 2010;
Borchert and Mattoo 2009). Erste, contraction in world final demand was far less
for services than for durables during the period Q1 2008–Q2 2009: the US and
15 members of the European Union (EU) experienced a contraction of only 1%–3%
in demand for services against a 20%–30% fall in demand for durables (Bems,
Johnson, and Yi 2010). One of the primary reasons for this relatively smaller drop in
services is that most modern services, such as back office services, are unrelated to
the volume of goods production. daher, even if goods production declines, Die
demand for these services will be less affected. Zweite, the negligible fall in final
demand for services is also reflected in a smaller contraction in the services trade
compared with the goods trade.
The outsourcing of services to developing economies is of concern to some
policy makers in the developed world, though both the theoretical and empirical
studies reviewed by Francois and Hoekman (2010) show that the impact of services
outsourcing on OECD labor markets has been insignificant. Only about 8% of world
exports of modern services are from lower-middle-income economies. It is only
with respect to ICT-enabled services that lower-middle-income economies have
a larger share of the world total (um 23%), most of which is contributed by
Indien. Lower-middle-income economies, excluding India, have not experienced a
significant change in their share of world modern services exports, showing that the
benefits of the increase in modern services exports is still limited to a few emerging
economies.5
Telecommunications services, computer and information services, and BPS
collectively account for more than 60% of modern services exports. These are the
fastest growing segments of the services trade among emerging economies engaged
in outsourcing activities. The increase in ICT-enabled services and BPS exports from
these economies has been largely due to the increasing trend of outsourcing activities.
Total world estimates for the trade in computer and information services exceeded
5Figures in this paragraph are based on data reported in the World Bank’s World Development Indicators and
the International Monetary Fund’s Balance of Payments Statistics, and cover cross-border services trade.
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6 ASIAN DEVELOPMENT REVIEW
$287 billion in 2011, increasing from $18.5 billion in 1997 on an average annual
growth rate of about 24%. Indien, Ireland, das Vereinigte Königreich (Vereinigtes Königreich), Deutschland, Die
US, die Niederlande, Schweden, Kanada, and the People’s Republic of China (VR China)
are among the top exporters of computer and information services. Currently, im
world market for BPS exports, the US, the UK, Deutschland, and Japan are the main
players. In South Asia and ASEAN, Indien, die VR China, and the Philippines are the lead
BPS exporters.
While other emerging economies can exploit their potential and benefit from
expanding markets, the emerging economies of Asia (excluding India) have not
experienced a significant change in their global share of modern services exports,
demonstrating that the benefits of growth in the modern services trade have thus
far been limited to a few Asian economies.6 In terms of world share of modern
services exports, East Asia and ASEAN did not show an increase in their respective
shares between 2000 Und 2010 (Tisch 1). Während dieser Zeit, the growth rate in
modern services exports from South Asia was almost double the growth rate of
these exports from East Asia, ASEAN, and the global average (Tisch 2). Südasien
increased its world share of modern services exports from 1.7% In 2000 Zu 4.9% In
2010, an almost threefold increase, mainly due to India’s huge export volumes of
computer and business services (Tisch 1). ASEAN economies have also improved
their world shares in computer, BPS, and insurance services exports. Insbesondere, Die
Philippines and Singapore are major exporters of business and computer services,
while other ASEAN economies have yet to realize their full potential.
Indien (within South Asia) and the Philippines (within ASEAN) have emerged
as the major Asian economies for the export of ICT-enabled services and BPS. Indien
is an established player and its edge in ICT-enabled services is due to a large pool of
skilled ICT professionals and entrepreneurs. India has also gradually expanded its
business process outsourcing (BPO) industry. The Philippines has been successful
primarily in the segment of its BPO industry concentrating in voice-based services,
such as call centers, which are considered low-end services. The Philippines has a
comparative advantage in BPO due to the availability of sufficient manpower with
good English language proficiency and the basic skills required for the BPO industry.
In 2012, India’s exports of ICT-related and BPS crossed $90 Milliarde, in which BPS exports were $24.6 Milliarde. India’s BPS exports grew by a compound average
growth rate of 24.8% in 2002–2012. Over the same period, the Philippines increased
6Trade in ICT-enabled services and BPS can take place through all four modes of trade in services. In our
Analyse, we have used balance of payments (BOP) data on services exports that cover Mode 1 (cross-border trade
between residents and nonresidents). According to the WTO (2005), BOP data on services exports can be seen as the
upper limit of outsourcing of these services because outsourcing of ICT-enabled services and BPS is a subcomponent
of overall activities covered in the export of these services. daher, data reported for outsourcing would differ from
that of cross-border trade. Zum Beispiel, the United Nations Conference on Trade and Development estimates that the
total world market for the offshoring of ICT-enabled services and BPS was $93 billion in 2008, which represents less than half the ICT cross-border trade of over $224 Milliarde (UNCTAD 2009). Indien, Kanada, die Phillipinen, Ireland,
and the PRC comprise the bulk (80%) of this offshoring market, although their cumulative share is declining over
time as new economies enter the market.
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 7
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8 ASIAN DEVELOPMENT REVIEW
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 9
its BPS exports to $9.6 billion on a compound annual growth rate of 43.3%. Considering that its GDP is only one-seventh the size of India’s, the Philippines has been Asia’s star performer in terms of BPO services exports. Analysis of the composition of services sector exports in India and the Philippines reveals a stark difference. BPS exports from the Philippines comprised 7% of the services sector total output (value-added) In 2012, up from only 0.6% In 2002. In comparison, India’s BPS exports accounted for 2.5% of the services sector output in 2012. Labor productivity in the services sector in the Philippines posted an annual growth rate of only 1.8% in 2000–2010, suggesting that a shift toward high-end services exports is needed (Park and Shin 2013). In India, the average annual growth rates in labor productivity in 2000–2005 was 5.4%, which was more than double the labor productivity of the industry sector in India over the same period. India has a competitive edge in ICT-enabled and knowledge-based services that has been gained by leveraging high value-added ICT-enabled and business processes services. The National Association of Software and Services Companies of India is providing strategic direction for the industry’s sustainable growth. Ähnlich, the ICT and Business Process Association of the Philippines (IBAP) is helping investors set up businesses in the Philippine ICT and BPO industries. IBAP aims to double ICT-enabled and BPO services exports to $25 billion between 2012 Und 2016. Going
forward, IBAP will need to support the establishment of new business ventures
offering high-end services.
III. Data on Bilateral Services Trade
Unlike the systematic and sufficiently disaggregated data on bilateral goods
trade, services trade data are insufficient both in terms of disaggregation and
coverage. The three primary sources for bilateral services trade data are Eurostat,
the OECD, and the United Nations (UND). Eurostat provides bilateral services trade
data for 27 EU economies and 66 possible partners. Although Eurostat provides
bilateral services data going back to 1985, there are very few observations for
earlier years and only a small portion of the early data is disaggregated. The OECD
database provides data for 30 reporting economies and more than 200 möglich
partner economies. Jedoch, most OECD data are reported for the same 66 partner
economies as Eurostat. The UN’s disaggregation of bilateral services trade data has
improved over time; Jedoch, there are few observations for disaggregated categories
of services. The UN database includes the entire UN classified list of economies as
partner economies. Wieder, the number of partner economies with data availability
varies for each reporting economy. None of the reporting economies provide data
for all partner economies in any of the datasets.7
7These three data sources broadly follow the BOP classification for services trade.
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10 ASIAN DEVELOPMENT REVIEW
The reporting for services trade is not free from economy bias, concealed data,
and overestimation and underestimation. Zum Beispiel, In 2003, the US reported $420 million in imports of business, professional, and technical services from India, while India reported $8.7 billion in business, professional, and technical exports to the
US (GAO 2005). Such differences in data reporting are due to several reasons,
including weak reporting on the import of services, intentional underreporting
or overreporting, use of different definitions of cross-border services trade, Und
sensitivity of data. Weiter, sample surveys of the firms exporting services are more
representative compared with surveys of firms importing services. Exporting firms
can easily be covered in surveys, while importing firms are usually more numerous
due to the nature of the use of imported services by domestic firms.
In our dataset for bilateral services, we find significant differences in the
reporting of bilateral trade flows. Zum Beispiel, the US, despite being a major trading
partner of many economies in the world, reports few bilateral trade flows. Vast
differences in the reporting highlight underlying weaknesses in the compilation
and coverage of bilateral services trade flows. As a result of these issues and the
nonreporting of certain bilateral trade figures by individual economies in the reported
Daten, we used data extracted from OECD, Eurostat, and UN data sources to arrive
at bilateral services trade figures.
Anfänglich, we extracted bilateral services import and export data between
2002 Und 2011 for all possible reporting and partner economies from three data
sources: the OECD, Eurostat, and the UN.8 For our analysis, we selected the
main modern services subcategories: BPS, computer and information services, Und
telecommunications services. We merged bilateral data flows for these subcategories
from three databases and compiled a single dataset. We used this basic dataset to
extract bilateral services exports of developing economies from the import data of
importing OECD economies using mirror flows. Using three different datasets from
Eurostat, OECD, and UN services trade data, 30 reporting economies were selected
for which relatively consistent data with respect to same partner economies were
verfügbar (Tisch 6). Jedoch, none of the reporting economies provide data for all
of its partner economies in any of the datasets.
IV. Analytical Framework
In the international trade literature, the gravity model has been widely used
to examine trade flows between trading partners. The basic gravity model was
introduced by Tinbergen (1962) and its log-linear form specifies that the trade
8Kürzlich, Francois and Pindyuk (2013) compiled comprehensive data on the services trade using Eurostat,
OECD, and UN data sources. While the time period covered extends until 2010, there are few values for 2010. Wir
prefer to create our own dataset because we had additional data for 2010–2011 and better coverage for some of the
developing economies.
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 11
flows between two trading partners can be explained by the economic size of the
trading partners, the distance between them, and other factors that can affect trade.
The empirical application of this model has been very successful in economics
(Anderson and Wincoop 2003).
Anderson (1979) provided a basic theoretical framework for a gravity model
of trade flows that later was extended by others.9 Given basic assumptions of
homothetic preferences for traded goods across economies and using the constant
elasticity of substitution preferences, Anderson (1979) derived the following
specification of a gravity-type equation:
Xi j = mi φi Yi φ j Y j
φ j Y j
(cid:2)
J
⎡
(cid:6)
⎢
⎣
J
.
1
F (di j )
.
φ j Y j(cid:2)
φ j Y j
.
1
F (di j )
J
−1
⎤
⎥
⎦
ui j
(1)
Wo,
Xi j = exports of economy i to economy j
Yi = income in economy i
d j = distance between economy i and economy j
Øi = share of expenditure on all traded goods and services in total expenditure
of economy i = F(Yi j , Ni ), where N is the population in economy i
The standard form of the gravity equation used in empirical studies can be given as
Xi j = αY
b1
i Y
B 2
j N
β3
i N
β4
j d
β5
i j Ui j
(2)
According to Anderson (1979), with the log-linear function of Ø and m,
Gleichung (1) resembles Equation (2) with an important difference. This difference is
(cid:2)
F (di j ) ]−1. This is missing in the
the square bracket term in Equation (1) [
generally used empirical specification of the gravity model presented in Equation (2).
Anderson (1979, 113) describes this term as follows: “the flow from i to j depends
on economic distance from i to j relative to a trade-weighted average of economic
distance from i to all points in the system.”
φ jY j(cid:2)
J
φ j Y j
·
1
J
Omission of this important relative economic distance term in the empirical
specification of the gravity model leads to biased estimates. This is because the error
term is affected by the relative economic distance term. daher, E(Uij) (cid:4)= 0 Und
the normality assumption of ordinary least squares (OLS) is violated. This problem
leads to “heteroskedastic error terms and the log-linearization of the empirical
model in the presence of heteroskedasticity leads to inconsistent estimates because
the expected value of the logarithm of a random variable depends on higher-order
9Zum Beispiel, Bergstrand (1985, 1989) and Deardorff (1995) derived the gravity equation from the
Heckscher–Ohlin model, while Eaton and Kortum (2002) developed a theoretical justification of the gravity equation
from the Ricardian model.
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12 ASIAN DEVELOPMENT REVIEW
moments of its distribution” (Kalirajan 2007, 92). daher, the OLS estimation
for such gravity equations will be biased.
Measuring the correct specification of the relative economic distance term
is difficult because researchers do not know all the factors affecting this term.
The economic distance can be affected by many factors—institutional, regulatory,
cultural, and political—that are difficult to measure completely. These factors are
referred to as behind-the-border constraints. The correct empirical specification
of the gravity equation is still a challenge despite many proposals to partly solve
the inherent bias in the standard gravity model. Zum Beispiel, some suggest using
fixed effects models (z.B., Bayoumi and Eichengreen 1997), while Egger (2008)
suggests the use of panel data models, which are nonlinear in terms of trade costs.
Feenstra (2002) uses price differences between trading partners in his specification
of the gravity model. Since McCallum (1995), many empirical papers have used
remoteness variables, generally defined by
M(cid:4)=jdim/ym, where d is distance, y is
BIP, and the whole term represents the weighted average distance of economy
i from all its trading partners except partner j. Anderson and Wincoop (2003)
criticize these remoteness variables and suggest another multilateral resistance term.
Jedoch, these solutions are either not based on the basic theory of the gravity model
or cannot fully capture the inherent bias in the empirical estimation. These also give
biased results by not addressing the heteroskedasticity and nonnormality of the error
Begriff, as previously discussed.
(cid:2)
Drawing on Kalirajan (2007), this study uses a stochastic frontier approach to
estimate the gravity model, taking into account heteroskedasticity and nonnormality
because we do not know the structure of heteroskedasticity in a gravity equation.10
With a stochastic frontier approach, the gravity equation can be written as
Xi j = f (Zi j;β) exp (vi j − ui j )
(3)
Wo
Xi j = actual exports from economy i to economy j
Zi j = potential exports from economy i to economy j
β = a vector of unknown parameters
ui j = single-sided error term for the combined effects of inherent economic
distance bias or behind-the-border constraints, which is specific to the
exporting economy with respect to the particular importing economy,
creating the difference between actual and potential bilateral trade;
normally assumed to have a truncated normal distribution
10Aigner, Lovell, and Schmidt (1977) and Meeusen and van den Broeck (1977) were the first to introduce
stochastic production frontier models, which have been used extensively in the production economics literature.
Kalirajan (2000) formally introduced this approach in trade to address the inherent bias in the conventional gravity
model of trade and to estimate potential trade flows.
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 13
vi j = double-sided error term that captures the impact of inadvertently
omitted variables and measurement errors that are randomly distributed
across observations in the sample; normally assumed to follow a normal
distribution with mean 0 and constant variance.
If uij is 0, then the economic distance bias and behind-the-border constraints are
not important. If uij is close to 1, then these constraints prevent trade from reaching
its potential (Kalirajan 2007). Daher, unlike the conventional method of the gravity
estimation, the stochastic frontier approach does not exclude the effect of economic
distance on bilateral trade in the gravity estimation. Gleichung (3) can be rewritten as
ln Xi j = α + β.1 ln Yi + β.2 ln Y j + β.3 ln di j + ϕ R − ui j + vi j
(4)
R is a vector of other variables normally used in augmented gravity models. In
Gleichung (4), it is assumed that the one-sided error term, u, which concerns the
economic distance bias or behind-the-border constraints, follows a half normal
distribution:
fu(u) =
1
√
π/2
σu
e− 1
2
u2
σ 2
u
if u> or = 0
= 0 ansonsten.
The statistical error term v follows a full normal distribution. Daher, with these
combined error terms, neither OLS nor any variant of OLS can be used to estimate
Gleichung (4). Stattdessen, the maximum likelihood estimation (MLE) technique can be
gebraucht. Given these density functions of half normal and full normal distributions for
u and v, jeweils, the density function of ln X in Equation (4) can be derived
using the density functions of u + v:
fx (ln X ) =
1
√
π/2
−∞ < ln X < + ∞
σ
(cid:10)
(cid:11)
1 − F
u + v
σ
(cid:12)(cid:13)
γ
1 − λ
(cid:14)(cid:15)(cid:16)
2 ( u+v
σ )2
e− 1
v and γ = σ 2
+ σ 2
where σ 2 = σ 2
σ 2 is an indicator of the relative importance of v,
u
which is the impact of behind-the-border constraints on potential exports. The
likelihood function, which is the probability density of obtaining the sample
(ln X1,ln X2, . . . ln Xn) may be written as
u
L ∗(ln X ; θ) =
n(cid:17)
i=1
fx (ln X )
where θ is the parameter to be estimated and it is equal to β, σ 2, and γ .
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14 ASIAN DEVELOPMENT REVIEW
The MLE method aims to find an estimate of θ, which maximizes the value
of the likelihood function, and this means that the probability of the sample drawn is
large (Theil 1971, 89). The MLE estimators of θ, maximizing the above likelihood
function, are obtained by setting its first-order partial derivatives with respect to β,
σ 2, and γ equal to 0. The MLEs of Equation (4) can be obtained through popular
software such as STATA.
There are two advantages of the stochastic frontier approach as described by
Kalirajan (2007). First, it estimates the complete impact of the economic distance
term, separating it from the statistical error term. This enables us to see the
trade impact of behind-the-border constraints, when researchers do not have full
information on the behind-the-border constraints. Second, it provides potential trade
estimates by using the upper limit of data that comes from economies that have the
least behind-the-border resistance.
A.
Data on Explanatory Variables
The empirical specification of our gravity model
includes the basic
explanatory variables suggested by the analytical framework discussed in the
previous section (Appendix). These include the combined GDP of the trading
partners, distance between them, and language and colony variables.11 We focus
on ICT-enabled services exports that are greatly affected by the availability of a
tertiary-educated population and the use of ICT infrastructure. Therefore, in our
empirical specification, we include the stock of tertiary graduates and Internet
subscribers per 100 persons. Data for the variables on GDP and Internet subscribers
were taken from the World Bank’s World Development Indicators. The stocks of
tertiary graduates were estimated using the base stocks of graduates from Barro
(2010) and tertiary enrollment, obtained from the online database of the United
Nations Educational, Scientific, and Cultural Organization.12 Distance, common
language, and colony variables were downloaded from the French Research Center
in International Economics. We also compiled a variable for the time difference
between trading partners using information on time zones. Due to strong collinearity
between the distance variable and time difference, we dropped this variable from the
main regressions.
The model also specifies the variables that are either expected to augment or
diminish trade between trading partners. These include a services trade agreement
between the trading partners and the STRIs of importing economies. To create a
dummy variable for a services trade agreement between trading partners, we used the
11GDP is in constant 2005 prices and the GDP deflator for the base year 2005 has been used to deflate services
exports.
12There are missing observations in the data for graduates and enrollment of tertiary education. We fill missing
observations for an economy using available information on the economy and regional averages.
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 15
information on the WTO website for effective bilateral and regional trade agreements
for goods and services. The dummy variable takes a value of 1 if the trading partners
belong to an effective trade agreement that also includes services. For our analysis,
we excluded trade agreements that only impact the goods trade and do not cover
services. Finally, we used STRIs to include barriers to the services trade in our
model. An explanation of STRIs is provided below.
Barriers to trade in services are difficult to measure compared to tariffs and
nontariff barriers to trade in goods. Most barriers to the services trade are in the form
of regulations. Construction of an STRI first requires the careful selection of policies
and regulations potentially restricting trade in services (Grosso et al. 2015). Applied
regulations and policies are quantified and then converted into an index by assigning
appropriate weights to each policy. To obtain more specific STRIs, we also need
to separate policy measures affecting different modes of services trade. The first
comprehensive effort to construct sector-specific STRIs was made by the Australian
Productivity Commission (Findlay and Warren 2000) and has been widely quoted
in the services trade literature. The index covers six services subsectors and 34
economies. Gr¨unfeld and Moxnes (2003) use this STRI in their gravity model for
total services trade, but they have been criticized by Kimura and Lee (2006) because
the use of six services industry STRIs for the overall services trade can produce
misleading results. With the availability of more disaggregated bilateral services
trade data, it is possible to test the index for individual subcategories of services.
However, the index is based on information for the latter years of the 1990s and is
not suitable for the more recently available bilateral services trade data that includes
expanded coverage.
Recent attempts involving the construction of STRIs include projects by the
OECD (OECD 2009 and Grosso et al. 2015) and the World Bank (Borchert, Gootiiz,
and Mattoo 2012). The STRIs derived by the OECD are only for OECD economies,
while the World Bank covers 79 developing and transition economies, and 24 OECD
economies. The World Bank survey covers financial services, telecommunications,
retail distribution, transportation, and professional services. The OECD provides
STRIs for telecommunications, construction, BPS, and computer-related services.
The World Bank project has greater economy coverage than the OECD project.
However, sector-specific STRIs for computer services and BPS are not available in
the World Bank database. Therefore, we used STRIs compiled by the OECD for
our estimations as OECD economies are the trading partners considered for the
gravity models used in this paper. The OECD STRIs cover restrictions on foreign
ownership, market entry, and the movement of people; discriminatory measures;
public ownership; barriers to competition; and regulatory transparency and licensing
(OECD 2009). In order to construct the index, each measure has been allocated a
weight according to importance of that measure in terms of trade restrictiveness.
Further, these policy measures are categorized by the modes of supply. In our
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16 ASIAN DEVELOPMENT REVIEW
analysis, we used the STRIs that pertain to cross-border trade. Overall, STRI value
is scaled from 0 to 1, where 0 reflects minimum trade restrictions.13
B. Maximum Likelihood Estimates
The gravity-type stochastic frontier model discussed above was estimated
using the maximum likelihood method. Separate stochastic frontier models
were estimated for the export of computer and information services, BPS, and
telecommunications services (Tables 3, 4, 5). The estimations were performed on
annual bilateral services exports for the period 2002–2011. We provide estimation
results for the regions of South Asia, East Asia, ASEAN, Europe, and the Americas.
As the STRI variable is available only for OECD economies, each exporting
economy’s trading partners are limited to OECD economies.14 The stochastic frontier
model was estimated using STATA software (version 11).
First, the gamma coefficient, which is the ratio of the variation in exports due
to behind-the-border constraints to total variation in exports, in all the regressions
is significant and close to 1, which is the upper limit for a gamma coefficient.
A significant gamma coefficient shows that the use of the stochastic frontier
method to estimate the gravity model is appropriate for the sample data. This
also shows that there are economy-specific, behind-the-border constraints that are
not captured by other explanatory variables. In developing economies, some of the
important behind-the-border constraints in services—particularly BPS, computer
and information services, and telecommunications services—are electricity supply
interruptions and chaotic urban transportation. For example, India suffers severe
power supply shortages. Many cities that are known for their active participation
in the aforementioned services industries, such as Chennai, regularly experience
power shortages and interruptions. Thus, state and central governments urgently
need to rectify the power supply situation in their respective economies. Though the
economy-specific, behind-the-border constraints could not be identified in this study
due to a lack of comparable data across the sample economies, some conjectures can
be made. For example, exports of modern services from developing economies may
be constrained by weak regulations, lack of modern infrastructure, and domestic
political interests. These factors prevent developing economies from reaching their
export potential.
The coefficients of the standard gravity variables generally exhibit signs in
accordance with gravity trade theory. Services exports increase with a rise in the GDP
13STRI data by service classification, type of restriction, and mode of service was made available during the
OECD experts meeting on the STRI held in Paris on 2–3 July 2009. See http://www.oecd.org/tad/services-trade
/oecdexpertsmeetingsontradeinservices.htm. For more information on STRI data, see http://www.oecd.org/tad
/services-trade/services-trade-restrictiveness-index.htm.
14Among OECD economies, we excluded the Czech Republic, Slovakia, and Slovenia due to a lack of
comparable data.
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 17
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 19
Table 5. Maximum Likelihood Estimation Results of Stochastic Frontier Model
(Exports of Telecommunications Services)
Log of exporters’ real GDP
Log of importers’ real GDP
Colony
Common language
Log of distance
Services Trade Restrictiveness
Index (STRI)
FTA_services
Log of internet users per
100 persons_i
Log of internet users per
100 persons_j
Constant
All
Economies
0.505∗∗∗
(0.031)
0.698∗∗∗
(0.037)
0.353∗
(0.212)
0.590∗∗∗
(0.165)
−0.730∗∗∗
(0.047)
−0.959
(1.277)
0.514∗∗∗
(0.133)
0.249∗∗∗
(0.044)
0.487∗∗∗
(0.077)
−6.349∗∗∗
(0.697)
0.78∗∗∗
South
Asia
0.766∗∗∗
(0.249)
0.367∗∗
(0.172)
1.026
(1.534)
−0.010
(0.997)
2.776
(2.216)
−2.067
(10.607)
0.215∗
(0.103)
1.155∗∗
(0.473)
−42.006∗∗
(16.174)
0.79∗∗∗
East Asia
and ASEAN
0.230∗∗∗
(0.069)
0.832∗∗∗
(0.095)
1.485∗
(0.882)
0.772
(0.492)
−0.504
(0.892)
1.302
(2.834)
0.137
(0.333)
0.056
(0.068)
0.830∗∗∗
(0.232)
−9.511
(8.573)
0.78∗∗∗
Europe and
Americas
0.530∗∗∗
(0.031)
0.586∗∗∗
(0.035)
0.124
(0.186)
0.331∗
(0.151)
−0.704∗∗∗
(0.045)
−1.682
(1.321)
0.283∗
(0.134)
0.463∗∗∗
(0.081)
0.412∗∗∗
(0.077)
−8.216∗∗∗
(0.676)
0.77∗∗∗
Gamma
Log likelihood
Wald Chi2
No. of Obs.
ASEAN = Association of Southeast Asian Nations, FTA = free trade agreement, GDP = gross domestic product.
Notes: ∗∗∗ = 10% level of statistical significance, ∗∗ = 5% level of statistical significance, ∗ = 1% level of statistical
significance. Figures in parentheses are standard errors.
Source: Authors’ calculations.
−2,366.1
1,085.6
2,747
−232.5
115.9
176
−1,617.2
863.7
261.3
559
−543
2,012
of exporters and importers, and decrease with an increase in the distance between
them. The GDP coefficients for both exporters and importers are highly significant.
The coefficient of distance in the regression for South Asia is positive and not
significant for computer and information services, BPS, and telecommunications
services. This is in line with the idea that most computer services, ICT-enabled
services, and BPO exports from South Asia are generated by offshore service
providers based in India and delivered online.15 Second, an increase in distance also
provides opportunities for South Asia to provide customer support services, back
office services, some data processing, and the processing of medical transcripts
to economies in different time zones.16 Compared with South Asia, the distance
15BPO includes a large number of services that firms can outsource offshore. Exports of services that come
from BPO operations can have entries under different BPO service classifications, including computer services,
information services, other business services, and telecommunications services.
16We also used the time difference between the bilateral trade partners in separate regressions and found
that the coefficient of time difference was also positive and not significant for South Asia, while it was negative and
significant for our overall sample.
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20 ASIAN DEVELOPMENT REVIEW
coefficient for East Asia and ASEAN is negative and significant in the regression
for BPS and computer and information services exports. This may be because the
BPS exports of East Asian economies are more dependent on personal interactions
compared to South Asia’s BPS exports.
New ICTs have played a central role in the increase in trade in modern
services. We included Internet use as a proxy for the availability and use of ICTs
in an economy. The coefficients for Internet use are positive for both exporting and
importing economies; however, they are more significant for exporting economies.
The results show that Internet use in both trading partners is essential to augment
the trade of modern services between them.
Other explanatory variables included in the empirical model exhibit
theoretically correct signs for their coefficients. Although the significance of the
results varies across different services categories, these are expected results. For
example, sector-specific STRIs have negative and statistically significant coefficients
in the regressions for BPS and computer services. In contrast, telecommunications
seems little affected by the STRIs. Trade agreements that include services generally
do not have significant effects on bilateral services trade. This ineffectiveness could
be due to the trade agreement variable being general and not sector specific. The
stock of tertiary graduates was found to be significant and to positively contribute
to the export of computer-related services and BPS. For South Asia, the coefficient
is larger than in other regions, showing that an increase in graduates can result in a
greater rise in exports in South Asia than in East Asia or ASEAN.
C.
Export Performance
This section describes the performance of the economies in our sample in
terms of realizing their bilateral export potential, using economy-specific stochastic
frontier estimates. As described by O’Donnell, Rao, and Battese (2008), economies
exhibit different technology production opportunities due to differences in the
physical, social, and economic environment in which trade or production takes place.
Therefore, the estimation of separate stochastic frontiers for individual economies,
under the assumption that each economy has different levels of trade technology, is
reasonable for our analysis.
Economy-wise realization of export potential is provided in Table 6 for
BPS, computer and information services, and telecommunications services. The
realization of export potential is plotted against per capita GDP in Figure 1. The
plot shows that lower-middle-income economies seem to have realized greater
export potential in telecommunications services, while high-income economies
appear to have realized greater export potential in BPS. It is interesting to know
whether there are any specific reasons for such a pattern of realization between
lower-middle-income and high-income economies. The plot of the realization of
export potential against per capita R&D expenditure shown in Figure 2 indicates
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 21
Table 6. Realization of Potential Bilateral Exports
(Simple Average, %)
Exporter
India
Pakistan
Region
South Asia
South Asia
East Asia and Pacific
Australia
Hong Kong, China East Asia
East Asia
Republic of Korea
East Asia
Japan
East Asia
People’s Republic
of China
Singapore
Indonesia
Malaysia
Philippines
Thailand
ASEAN
ASEAN
ASEAN
ASEAN
ASEAN
Canada
United States
North America
North America
Business and Computer and
Professional
Services
Information
Services
Telecommunications
Services
53
39
66
52
69
65
65
52
37
46
57
47
77
82
60
55
67
66
85
57
61
64
–
52
–
–
82
72
55
40
65
66
–
75
69
48
45
53
–
–
66
72
Europe
Europe
Europe
Europe
Europe
Europe
Europe
Europe
Europe
Europe
Europe
Austria
Denmark
France
Germany
Hungary
Ireland
Italy
The Netherlands
Sweden
Switzerland
United Kingdom
– = data not available, ASEAN = Association of Southeast Asian Nations.
Note: Cyprus, Finland, Greece, Luxembourg, and Romania are part of the overall sample; however, they were not
included in the single-economy analysis for brevity.
Source: Authors’ calculations on the basis of individual economy stochastic frontier models using data for 2002–2008.
60
58
61
66
81
–
–
60
60
67
–
53
47
70
61
65
–
–
–
64
–
–
73
62
79
65
60
86
72
65
57
84
73
that high-income economies—such as Germany, the US, and Switzerland—spend
relatively more on R&D with respect to BPS; hence, they tend to realize larger export
potential in BPS. A similar argument applies for lower-middle-income economies
with respect to their realization of greater export potential in telecommunications
services.
In general, results reveal that emerging economies such as the Philippines
and India that have seen significant growth in their modern services exports due
to the outsourcing phenomenon are still not utilizing their full potential. There
is also heterogeneity in individual economy performances across the three types of
services under review. For BPS exports, the overall performance of ASEAN member
economies is weak, with an average realization of export potential of 50% for all
economies. The Philippines leads all economies in the grouping by realizing 57%
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22 ASIAN DEVELOPMENT REVIEW
Figure 1. Realization of Modern Services Export Potential Exports versus GDP per Capita
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AUS = Australia; AUT = Austria; CAN = Canada; DEN = Denmark; FRA = France; GDP = gross domestic
product; GER = Germany; HKG = Hong Kong, China; HUN = Hungary; IND = India; INO = Indonesia; IRE =
Ireland; ITA = Italy; JPN = Japan; KOR = Republic of Korea; MAL = Malaysia; NET = the Netherlands; PAK
= Pakistan; PHI = Philippines; PRC = People’s Republic of China; SIN = Singapore; SWE = Sweden; SWI =
Switzerland; THA = Thailand; UKG = United Kingdom; USA = United States.
Sources: Authors’ calculations and World Bank. 2012. World Development Indicators. Washington, DC.
of its BPS export potential. The performance of India is relatively better than that
of the average ASEAN economy; however, it is still considerably weaker than in
East Asia, Western Europe, and North America. For example, the top performing
economies—including the US, Canada, the UK, Switzerland, and Ireland—realize
around 80% of their BPS export potential compared with 53% for India and an
average of 50% for ASEAN.
South Asian and East Asian economies are performing relatively better in the
export of computer and information services than in BPS. On average, economies
in East Asia have realized their potential more than European economies, while
ASEAN member economies seem on par with the European average. Again,
India, despite being among the top offshore destinations for the outsourcing of
computer-related services, is lagging behind other economies in terms of its
realized export potential. By making use of its unrealized potential and removing
behind-the-border constraints, India could accelerate its export growth, led by
computer-related services and BPS.
For telecommunications services, the average export performance of East
Asian economies is the highest among all other regions included in the study. This
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 23
Figure 2. Realization of Modern Services Export Potential and R&D Expenditure
per Capita
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AUS = Australia; AUT = Austria; CAN = Canada; DEN = Denmark; FRA = France; GDP = gross domestic
product; GER = Germany; HKG = Hong Kong, China; HUN = Hungary; IND = India; INO = Indonesia; IRE =
Ireland; ITA = Italy; JPN = Japan; KOR = Republic of Korea; MAL = Malaysia; NET = the Netherlands; PAK
= Pakistan; PHI = Philippines; PRC = People’s Republic of China; R&D = research and development; SIN =
Singapore; SWE = Sweden; SWI = Switzerland; THA = Thailand; UKG = United Kingdom; USA = United States.
Sources: Authors’ calculations and World Bank. 2012. World Development Indicators. Washington, DC.
may be because some economies in East Asia—such as the Republic of Korea; Japan;
Hong Kong, China; and the PRC—are active players in using advanced technologies
in the provision of global transmissions of voice and data. India is also doing well
compared with ASEAN member economies; however, it lags behind the performance
of economies in East Asia, Europe, and North America. Economies such as Pakistan
and Indonesia that have very low efficiencies in terms of utilization of their export
potential can adopt advanced technologies and learn from the experiences of their
high-performing neighbors.
V. Conclusions and Policy Implications
For the three types of services included in our analysis, established services
exporters from North America and Europe show the highest levels of performance.
East Asian economies—including Hong Kong, China; the Republic of Korea;
Japan; and the PRC—are also relatively efficient in their modern services exports,
24 ASIAN DEVELOPMENT REVIEW
particularly telecommunications services. ASEAN economies that are performing
well in manufacturing are less efficient in terms of realizing their export potential in
modern services. India, despite its unprecedented growth rates in the export of BPS
and computer and ICT-enabled services, is also not efficiently realizing its export
potential. The unrealized potential of India’s modern services exports suggests that
for the economy to sustain its services-based, export-led growth, continued efforts
to develop high-end and knowledge-based services exports are needed, as well as
the implementation of market reforms.
In order to catch up with the high-performing economies of East Asia,
Europe, and North America, economies in South Asia and ASEAN should pursue
best practices in their trade strategies, adopt advanced technologies, and remove
behind-the-border constraints. The importance of regional cooperation in terms
of relevant services trade agreements involving technology transfer and capacity
building need not be overemphasized here. Identification of particular types of
behind-the-border constraints that increase the gap between the actual and potential
exports of modern services is beyond the scope of this paper. Nevertheless, some
conjectures can be made based on field observations. Improvements in the business
environment, regulatory reforms, and the provision of modern infrastructure are a
few of the measures that can reduce behind-the-border constraints. Though modern
services do not depend heavily on physical infrastructure, such as port facilities,
the poor quality of infrastructure, including power shortages and chaotic urban
transportation, hampers the growth of these services. Appropriate training and
improved standards for graduates in ICT-related disciplines are also important for the
growth and sustainability of modern services exports from developing economies.
Our results support the view that an increase in the stock of graduates and the
adoption of advanced technologies can have a significant positive impact on modern
services exports from developing economies in general and South Asia in particular.
Exploiting the potential of Asian economies for modern services exports
requires a diverse policy response and private sector initiatives. ICT infrastructure
and well-trained graduates are the basic ingredients for ICT-enabled modern services
exports. Improvements in these areas are needed in economies like Bangladesh and
Pakistan as they search for their niche in a competitive global market. For established
players like India, on the other hand, continuous innovation is required to move up
the value chain and achieve sustainable growth beyond the current dependence on
labor-cost comparative advantage. Improving urban infrastructure and developing
knowledge cities is also important to facilitate the business models of modern
services exports in developing Asian economies. Furthermore, the experiences of
successful economies point to the role of an array of diverse factors in the expansion
of ICT-enabled modern services, including multinationals, diaspora, partnerships,
entrepreneurship, and regulatory reforms. Finally, there is a need for regional efforts
to reduce regulatory barriers to trade in services.
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 25
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ICT-ENABLED MODERN SERVICES EXPORT PERFORMANCES OF ASIAN ECONOMIES 27
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