The role of comparative advantage in trade within industries: A panel data approach for the European Union

The Role of Comparative Advantage in Trade within Industries: A Panel Data Approach for the European Union. — A large share of EU member states trade is intra-industry trade (IIT) in the period 1985-1996; in particular, IIT is based on products differentiated in quality (vertical IIT). Moreover, exports from southern countries are located mainly at the lower end of the price-quality spectrum, whereas those countries with higher per capita incomes are located at the higher end. According to the vertical IIT models, we hypothesize that commercial specialization of members states over the quality spectrum within industries is explained by differences in technological, physical and human capital. The results show that comparative advantage is an important driver of the pattern of European trade within industries.     

Does Immigration Help to Explain Intra-Industry Trade? Evidence for Spain

This paper argues and provides evidence that the stock of immigrants in a country has a positive effect on the share of its bilateral intra-industry trade (IIT). The paper links the literatures about immigration and trade and about IIT determinants. The key is that immigration contributes to trade transaction costs reduction and this would benefit the trade in differentiated products, i.e. IIT, more than the trade in homogeneous products, i.e. inter-industry trade. We test this hypothesis using Spanish data and departing from the models developed by Helpman. Results are robust to different IIT measures, estimation methods and specifications. JEL no. F10, F22, F14     

On the Measurement of Changes in Product Quality in Marginal Intra-Industry Trade

There is a long established thread of the international trade literature concerned with the measurement of intra-industry trade (IIT). Two distinct strands of the literature have developed: First, measures of marginal IIT that are concerned with the adjustment implications of volume-based changes in IIT; second, measures of vertical and horizontal IIT that are concerned with quality-based differences in IIT. This paper marries the two literatures to provide a new perspective on the smooth adjustment hypothesis debate and suggests the use of the marginal product quality index, a new measure of changes in quality in matched trade changes that complements dynamic measures of volume-based IIT. JEL no.  F19     

Study of the Measurement and Determinants of Intra‐industry Trade in East Asia*

The present paper investigates the development of intra‐industry trade (IIT) among the East Asian economies over the 1970–1996 period. A dynamic index is used to capture the changes in the structure of trade flows. Based on this approach, IIT is decomposed into horizontal (HIIT) and vertical components (VIIT) and the determinants of each are investigated. The results show that both HIIT and VIIT have exhibited increased importance over the sample period in manufacturing. Using pooled panel data the two‐way trade in all measures of IIT is found to be positively related to the country‐specific variables, such as the market size, exhange rate depreciation, the levels of development and income, and negatively to the geographic proximity of the partners. Economies of scale are seen to have a positive influence on IIT and HIIT, but a negative relationship with VIIT. Although the relative openness of a country's trade regime shows no significant relationship with any form of IIT, a trade imbalance does affect IIT and HIIT flows. The findings have implications for assessing the structural adjustment costs associated with the trade liberalization process as HIIT is associated with demand for variety and relates to two‐way trade in goods of similar quality, while VIIT is driven by international specialization and differences in relative factor endowments.     

Intra-industry trade of India: Trends and country-specific factors

Intra-industry Trade of India: Trends and Country-Specific Factors. — The analysis in this paper confirms that trade liberalization biases trade expansion towards intra-industry trade (IIT) in India. The increased level of IIT is largely exportled, that is, caused by a faster growth of exports than of imports. India’s IIT is more intense with high-income countries and is characterized by a greater extent of complementarity. Further, certain country-specific factors which are found to be crucial in the models of vertical IIT are pertinent in influencing the pattern of India’s bilateral IIT.     

产业内贸易、产业结构差异与中美贸易摩擦——与中日贸易摩擦的比较分析

本文通过对1995~2009年间中美、中日制造业产业内贸易进行统计上的比较,结合中美、中日贸易摩擦的状况,进一步证实产业内贸易水平与贸易摩擦之间的反向关系。产业结构的差异对中美、中日制造业产业内贸易发展有较大的影响,实证结果表明,人均消费差异、产业规模差异以及经济外向度差异与两者产业内贸易呈负相关,而对华FDI与两者产业内贸易呈正相关,但影响的强弱则大有区别。只有缩小中美两国之间的产业结构差异,才能有效提高中美产业内贸易水平,并逐步减少中美贸易摩擦。     

Intra-industry trade in manufactures: The case of Korea

Intra-Industry Trade in Manufactures: The Case of Korea. - This paper provides an empirical analysis of intra-industry trade (IIT) in Korea's foreign trade. First, we measure the share of IIT in Korea's trade of manufactures from 1977 to 1986. The share of IIT increased from 0.350 in 1977 to 0.502 in 1985, but declined to 0.421 in 1986. Second, we test hypotheses regarding country characteristics of IIT. Using the unadjusted Grubel-Lloyd index with a trade imbalance variable in the regression equations, we show that the extent of IIT is: (1) negatively correlated with differences in per capita incomes and with “economic distances” between Korea and its trading partners, and (2) positively correlated with the trade intensity between Korea and its trading partners and with the existence of a common cultural background.     

Country-specific factors and the pattern of horizontal and vertical intra-industry trade in the UK

Country-Specific Factors and the Pattern of Horizontal and Vertical Intra-Industry Trade in the UK. - A large number of empirical studies have investigated the relationship between country-specific factors and total intra-industry trade (IIT). One important shortcoming of this literature is that it ignores the distinction between horizontal and vertical IIT and ignores the fact that they may have different determinants. This paper disaggregates UK IIT into its horizontal and vertical components and, using bilateral trade data, estimates a series of models incorporating countryspecific variables. The results suggest that vertical IIT is more important in the UK than horizontal IIT and that the inter-country pattern of vertical IIT is systematically related to a range of explanatory variables.     

On the measurement of product quality in intra-industry trade: An empirical test for China

A relatively recent development in the intra-industry trade (IIT) literature is the measurement of the simultaneous import and export of quality-differentiated products, commonly known as vertical and horizontal IIT. A recent paper from Azhar and Elliott [Azhar, A. K. M. & Elliott, R. J. R. (2006), On the Measurement of Product Quality in Intra-Industry Trade, Review of World Economics, Vol 142 no 3, pp 476–495] analyses various approaches for disentangling vertical and horizontal IIT and suggests a complementary methodology. To investigate the robustness and sensitivity of the existing approaches we examine data on the nature of trade flows between China and its East Asian neighbours and show that in 2002 China tended to export low quality versions of its manufactured goods to Malaysia, Thailand and the Philippines.     

Revealed Comparative Advantage, Intraindustry Trade and the US Manufacturing Trade Deficit with China

This paper uses 4‐digit SITC data to identify groups of manufactured goods exported from China to the USA that have strong or rising comparative advantages. We find that most of the trades are inter‐industry, with only a small portion being vertical intra‐industry trades (IIT). Our results confirm that Sino‐US trade is complementary. We construct an imbalanced index of IIT, and identify the goods groups that aggravate and reduce the US trade deficit with China. We suggest an approach for calculating a dynamic IIT index that might mitigate the aggregation bias of the existing methodologies. Our improved index reveals that the dynamic imbalances of US‐Chinese IIT in manufactured goods are worse than their static IIT imbalances, which means that it would be difficult to correct the deficit of US trade with China in the following couple of years. Adjusting and improving the structures of industries and products is China's major task for sustainable trade growth.     

Does North-South horizontal intra-industry trade really exist? An analysis of the toy industry

Does North-South Horizontal Intra-Industry Trade Really Exist? An Analysis of the Toy Industry. — In a combination of a case study approach and econometric analysis, bilateral intra-industry trade between high income countries and low income countries in the toy industry is investigated. In a number of products there is important bilateral intra-industry trade between both groups of countries. Econometric analysis in which a number of the explanatory variables used were quantified on the basis of the information supplied by the industry-spokesmen yields results which strongly support the view that the bilateral IIT between the high income countries and the low income countries in the toy industry is determined significantly by horizontal product differentiation and economies of scale.     

On the Measurement of Product Quality in Intra-Industry Trade

The world has witnessed a dramatic increase in trade over the last forty years. Much of this growth in trade is intra-industry in nature. A relatively recent development in the intra-industry trade (IIT) literature is the measurement of the simultaneous import and export of quality-differentiated products, commonly known as vertical and horizontal IIT. In this paper we compare the Greenaway, Hine and Milner (1994) and Fontagné and Freudenberg (1997) approaches to disentangling vertical and horizontal intra-industry trade and examine some of the implications of employing simple ratios to define the boundary between product quality types. We present a complementary approach based on the traditional Grubel and Lloyd (GL) index and demonstrate with numerical examples its versatility and applicability at the product level. JEL no. F19     

DETERMINANTS OF SOUTH AFRICA‐US INTRA‐INDUSTRY TRADE IN SERVICES: A WILD BOOTSTRAP DYNAMIC PANEL DATA ANALYSIS1

The study attempts to empirically identify factors that determine South Africa–US intra‐industry trade (IIT) in selected services during the period 1994‐2002. The study utilises Liu‐Davidson‐Flachaire wild bootstrap, which is robust to heteroscedasticity and provides estimates of the degree of parameter bias. The empirical results, in principle, show that South Africa–US IIT in the selected services is determined by factors similar to goods‐based “North‐South” IIT studies. Specifically, differences in per capita income and differences in market size negatively affect IIT. The study also indicates that US foreign direct investment in South Africa positively contributes to the unaffiliated IIT in services.     

Intra-industry trade by types: What can we learn from Portuguese data?

We provide evidence on intra-industry trade (IIT) in the Portuguese case from 1994 onwards by disentangling vertical from horizontal IIT with two different indexes—the Grubel-Lloyd and the so-called CEPII index- and analyse the determinants of both IIT types. Distinct explanatory factors are identified for each IIT type and we confirm the comparative advantage explanation in the vertical case. The regression results are robust to different estimation methods and to alternative IIT indexes. Nonetheless, sensitivity of the IIT levels to the arbitrary criterion of the CEPII measurement points out to the Grubel-Lloyd index as a preferable method. JEL no. F12, F14     

Integration and intra-industry trade adjustment in South Africa

This article analyses intra-industry trade adjustment by the Southern African Customs Union after 1994, and links between trade liberalisation and employment are examined. The traditional Grubel-Lloyd index is complemented by marginal inter- and intra-industry trade measures, and trade expansion of sectors is scaled, related to change in total exports and imports. In three different empirical approaches, large differences are found: in the level of intra-industry trade (IIT) between different sectors (categorised into resource-based, labour-intensive, scale-intensive and differentiated industries); in the level of IIT of individual sectors in trade with the SADC6, the European Union and the rest of the world; and in the economic significance of trade expansion for different industries and with different trading partners. Trade expansion is dominated by differentiated and scale-intensive industries, indicating that the main economic gain of international integration is found in the opportunity to exploit economies of scale in a larger market. IIT and marginal IIT are positively related to increases in labour productivity, and negatively related to employment change. Interindustry trade and both export and import expansions are positively related to employment gain, but only export is positively related to increased labour productivity.     

Intra-industry trade — An in-depth study of Swedish liquid pump trade

Intra-Industry Trade — An In-Depth Study of Swedish Liquid Pump Trade. - The issue of intra-industry trade is here investigated through an in-depth case study of Swedish trade in pumps. A questionnaire was made in order to give detailed information about the trade flows. The survey indicates that the share of “true” IIT in Sweden's centrifugal pump trade in 1990 was about 10 percent. This part of the apparent IIT could not be attributed to “categorical aggregation”. The survey revealed twelve different causes of IIT. A large share of IIT was due to re-exports (= vertical IIT). Behavioural and institutional factors were the main explanations of the non-re-exports IIT (= horizontal IIT).     

How important is intra-industry trade in trade growth?

Empirical work on intra-industry trade (IIT) is almost 30 years old. Initial research sought to identify if IIT was a significant share of total trade (TT). The Grubel-Lloyd (GL) index was widely used for this purpose. Interest has since shifted to the changing importance of IITover time. Using movements in the GL index to infer the importance of IIT over time is not only vague, but can be misleading. In this article, we measure the contributions of growth in net trade (NT) and IIT to the growth in TT. To understand changes in IIT over time, we also derive the contributions of imports and exports to the growth in TT, NT, and IIT. All our formulas are illustrated with data for 205 Australian manufacturing industries.     

COUNTRY-SPECIFIC DETERMINANTS OF VERTICAL AND HORIZONTAL INTRA-INDUSTRY TRADE OF SOUTH AFRICA: AN EMPIRICAL INVESTIGATION

The main purpose of this study is to investigate the country‐specific determinants of horizontal and vertical intra‐industry trade (IIT) in South Africa using the gravity model of trade in a panel data setting. It empirically tests new and existing country‐specific hypotheses of intra‐industry trade. To ensure the sensitivity and robustness of the results, three different econometric approaches have been used in estimating the gravity models of intra‐industry trade: the consistent coefficient approach, the fixed effects approach, and the between effects approach. The econometric results are satisfactory in terms of economic interpretation and statistical significance. They are, in most cases, pertinent in determining the country pattern of South Africa's IIT and offer a new empirical validation to the theoretical explanatory variables.     

The nature and causes of intra-industry trade: Back to the comparative advantage explanation? The case of Spain

The Nature and Causes of Intra-Industry Trade: Back to the Comparative Advantage Explanations? The Case of Spain. — The aim of this paper is to contribute empirically to the knowledge of the nature and causes of intra-industry trade (IIT), distinguishing between vertical and horizontal IIT. To this end, we estimate a more general empirical model than those used in previous studies, by introducing simultaneously both national and industry-specific variables which include measures for human and technological capital endowments. The results show that vertical IIT is positively related to industry technological intensity and differences in human and technological capital endowments between countries. On the other hand, horizontal IIT is explained by the traditional monopolistic competition model.     

The Skill Content of Inter- and Intra-Industry Trade: Evidence for the United Kingdom

In this paper we investigate the relative importance of net exchanges of skills embodied in intra-industry and inter-industry trade for the UK’s trade with some middle income countries. We also separately measure the net exchanges of skills embodied in vertical and horizontal intra-industry trade (IIT). We find that there are substantial factor exchanges involved in IIT, implying that traditional factor content studies may have seriously underestimated the actual factor content of total trade flows. This means that the adjustment effects of IIT may be greater than is often presumed. We also find, in line with theory, that vertical IIT involves similar net exchanges of labour of different skills to that of inter-industry trade, while horizontal IIT involves much smaller net exchanges of skills. JEL no. F11, F14