Development-related biases in factor productivities and the HOV model of trade

Abstract .  Past empirical failures of the basic Heckscher-Ohlin-Vanek (HOV) model related to the inability of data to meet its restrictive assumptions. Trefler (1993) tried to resuscitate HOV by introducing a simple Hicks-neutral (HN) factor-productivity adjustment. In this paper, we re-examine this question by estimating factor-specific productivities from the individual technology data of multiple developed and developing countries. We find evidence of factor-augmenting technological differences. Further, the ratios of factor productivities are strongly correlated with corresponding factor endowments. This systematic bias implies that the ability of HOV to explain North-South factor trade depends on both relative factor abundance and factor-augmenting productivity gaps.     

Non-tradable goods and the border effect puzzle

The surprisingly high Canada–U.S. border effect estimated by McCallum has been puzzling trade economists in the last ten years. We argue in this paper that conventional estimates of the border effect without consideration of non-tradable goods can overstate the trade reducing effect of the national border and the impacts can be considerable. We then explore the Canada–U.S. case with a numerical general equilibrium model with parameters calibrated to 2001 data. Our counterfactual experiment results suggest that after adjusting for effects of non-tradable goods the Canada–U.S. border effect is reduced to 2.11.     

Determinants of successful regional trade agreements

This paper investigates the determinants of the effectiveness of regional trade agreements (RTAs) in enhancing bilateral trade. Characteristics of both the country pair and other RTA members are found to significantly influence the trade creation effect of RTAs. However, North/North, North/South and South/South RTAs are found to have similar effects on trade.     

Comparison of deep integration in the Melitz,Krugman and Armington models: The case of The Philippines in RCEP

We estimate the welfare effects of a modern mega-preferential trade agreement--the Regional Comprehensive Economic Partnership--with three versions of market structure: (i) perfect competition, Armington style; (ii) monopolistic competition based on Krugman (1980); and (iii) monopolistic competition in the style of Melitz (2003). We develop a new numerical model of foreign direct investment (FDI) with heterogeneous firms and extension of the Krugman model that allows small countries to impact the number of varieties. We hold both the trade and FDI responses constant across the three market structures. We find that in all three market structures, there are substantial gains from deep integration, but virtually no gains from preferential tariff reduction. Both our Krugman and Melitz style models produce significantly larger welfare gains than the Armington structure, especially if third countries benefit at least partially from the deep integration reforms via either spillovers or wider liberalization.     

Estimation of Armington elasticities in a CGE economy-energy-environment model for Europe

The main goal of the article is to estimate Armington elasticities of the energy and energy-intensive sectors of the GEM-E3 computable general equilibrium model. The model follows the standard two-stage budget optimisation of the consumer by first optimising between domestically produced and imported goods and, then, by country of origin. A panel data econometric framework is used here with dynamic adjustment to capture both the long and short term elasticities for the studied six aggregated sectors in Europe. The estimated long-term elasticities are in line with the literature, but higher than those used in the GEM-E3 model. The results suggest that consumer choice appears to be more price sensitive between the domestic and the composite imported goods, and amongst the importers, than already assumed in the model.     

How reasonable are assumptions used in theoretical models? Computational evidence on the likelihood of trade pattern changes

Abstract .  In theoretical literature it is common to make the assumption that in a multi-country, multi-good world, the direction of trade (import and export by commodity) is predetermined and fixed for each good for each country. We consider a simple three-country, three-good, pure-exchange model with CES preferences. We compute free trade competitive equilibria, three-country non-cooperative Nash equilibria, and customs union equilibria for randomised parameterizations, and find that trade pattern changes between free trade and customs union equilibria in around 35% of cases.     

The effects of regional tax and subsidy coordination on foreign direct investment

This paper analyses the effects of a regionally coordinated profit tax or location subsidy in a model with three active countries, one of which is not part of the union, and a globally mobile firm. We show that regional coordination can lead to two types of welfare gain. First, for investments that would take place in the union in the absence of coordination, a coordinated tax increase can transfer location rents from the firm to the union. Second, by internalising all of the union's benefits from foreign direct investment, a coordinated tax reduction can attract more welfare-enhancing investment than when member states act in isolation. Depending on which motive dominates, tax levels may thus rise or fall under regional coordination.     

Innovation and international trade in technology

The international market for technology is growing rapidly relative to world GDP. To study the international technology market, I present a model of innovation and international trade in which inventors auction their technology in both domestic and foreign markets. There is monopolistic competition in differentiated products. International trade in technology has number of significant economic effects. Technology trade improves the quality of innovation by increasing the pool of R&D experiments from which the best technology is chosen. Technology trade increases the efficiency of invention while at the same time lowering the total number of inventors relative to the equilibrium without technology trade. Technology trade increases the volume of trade in goods. Technology trade increases product variety at the market equilibrium. Technology trade increases national income in each country and increases total gains from trade.     

Supply and demand biases in linear interindustry models

We explore the sectoral and aggregate implications of some endogeneization rules (i.e. on value-added and final demand) which have been common in the extended demand-driven Leontief model and have been recently proposed in the supply-driven Ghosh model. Extended linear models are refinements that aim at endowing the linear models with additional general equilibrium feedbacks. We detect that these rules may give rise in these models to some allegedly pathological and biased behavior. We find that in these models sectoral or aggregate output may not follow the logical and economically expected direct relationship with some underlying endogenous variables — namely, output and value-added in the supply-driven model and output and consumption in the demand-driven model. Because of their shared mathematical structure, whatever is or seems to be pathological in the Ghosh model also has a symmetric counterpart in the Leontief model. These would not be good news for the inner consistency of these linear models and raise doubts regarding the validity of their empirical applications. To avoid such possible inconsistencies, we propose new and simple endogeneization rules that have a sound economic interpretation.     

North, South and distance in the gravity model

It is generally assumed that distance in the gravity model strictly reflects frictions impeding bilateral trade. However, distances North-South could also reflect differences in factor endowment that provide opportunities for profitable trade. This paper investigates the hypothesis that if we control for distance in the ordinary sense, differences North-South promote international trade. The hypothesis receives ample support. Moreover, the significance of differences North-South survives a battery of robustness tests, concerning period, distinctions between differences in latitude North-North, North-South and South-South, and controls for other measures of differences in factor endowment, such as differences in per capita output and differences in average temperature, rainfall, and seasonal range in temperature. The impact of differences North-South on bilateral trade has also been falling. This decline, in turn, might be partly responsible for the weakening of the influence of distance that has been occurring since World War II. This last hypothesis receives confirmation as well. Finally, the paper examines the impact of internal distance and remoteness on trade. Since both variables are country-specific, this is done by studying their impact on the country fixed effects themselves in the earlier estimates. Internal distance turns out to have a far greater impact than remoteness—by an order of 10.     

Language and foreign trade

While language plays an important role in gravity models, there has been little attention to the channels through which a common language promotes bilateral trade. This work proposes separate series for a common language depending upon whether ease of communication facilitates trade through translation or the ability to communicate directly. The series related to direct communication is far more important in explaining bilateral trade, but the other series, based on translation, makes a distinct contribution as well. Either measure of a common language outperforms the measure in popular use, which is implicitly related to translation, and a combination of the two does far better. In addition, the paper examines the effect of two country-specific linguistic influences on trade: Literacy and linguistic diversity at home. Both of these influences promote foreign relative to domestic trade. Finally, the article studies the separate roles of English and network externalities.     

The sources of protectionist drift in representative democracies

We analyze a two country-two good model of international trade in which citizens in each country differ by their specific factor endowments. The trade policy in each country is set by the politician who has been elected by the citizens in a previous stage. Due to a delegation effect citizens generally favor candidates who are more protectionist than they are. The one-candidate-per-country equilibria exhibit a “protectionist drift” owing to this delegation effect. In addition, we find an additional source of protectionist drift that we call the “abstention effect”. Not only do candidates wish to delegate to more protectionist colleagues, but these more protectionist colleagues who can win election, prefer still more protectionist candidates than themselves. Therefore, they have an incentive to abstain, that is, not run for election. We show that because of this abstention effect there exists a range of electable citizens all of whom are more protectionist than the median voter's most preferred candidate. We extend the analysis allowing two-candidate equilibria and the possibility that there are costs and benefits of holding office.     

Financial reforms,product differentiation,and trade

We hypothesize that exports of differentiated products, which entail greater upfront costs, increase more as financial reforms take place. We find strong and robust empirical support of this hypothesis with a comprehensive set of measures of reforms encompassing the banking sector, interest rates, equity and international capital markets.     

Dynamic gravity: endogenous country size and asset accumulation

Abstract Numerous gravity applications have resorted to panel data econometric techniques over the past decade. However, with the theory of gravity being so far only static, these estimations lack solid structural dynamic foundations. As a consequence, a consensus on a unified dynamic gravity estimation approach is yet to be reached. In this paper, (i) we build the theoretical foundations for a dynamic gravity model, (ii) we provide guidance for gravity‐type estimations with panel data and we consider applications, and (iii) we calibrate and simulate our model to compare its properties with those of the standard, static gravity setup.     

Revisiting the effects of regional trade agreements on trade flows with proper specification of the gravity model

This paper uses a gravity model to assess ex-post regional trade agreements. The model includes 130 countries and is estimated with panel data over the period 1962-1996. The introduction of the correct number of dummy variables allows for identification of Vinerian trade creation and trade diversion effects, while the estimation method takes into account the unobservable characteristics of each pairs of trade partner countries, the endogeneity of some of the explanatory variables as well as a potential selection bias. In contrast to previous estimates, results show that regional agreements have generated a significant increase in trade between members, often at the expense of the rest of the world.     

Ethnic networks and trade: Intensive versus extensive margins

Ethnic networks have been associated with increased international trade, although studies have not differentiated between entry into foreign markets and trade expansion. We find that ethnic networks increase trade on the intensive margin but not on the extensive margin.     

The export price index with the effect of variety and an empirical analysis

The standard international trade models predict that economic growth induces decreasing export prices. Korea has recorded sustainable economic and export growth, and its export prices have been deteriorating over the last decades. Unlike the standard assumption of one good per country, the new theoretical approach by Krugman [Krugman, P. (1980) ‘Scale Economies, Product Differentiation, and Pattern of Trade’. American Economic Review 70, 950–959, Krugman, P. (1989) ‘Differences in income elasticities and trends in real exchange rates’. European Economic Review, 33, 1055–1085.], and Helpman and Krugman [Helpman, E. and Krugman, P. (1985), Market structure and foreign trade: increasing returns, imperfect competition, and international economy, The MIT Press, Cambridge, MA.] takes into account varieties of goods produced in each country. And many studies suggest that traditional estimates without variety effect have been rather under-stated. Therefore this paper develops a proper modeling for quantifying the impact of export variety on an exact export price index. Throughout the period (1984–2000), the conventional export price index without variety effect leads to under-state Korea's export price by 89.3%. This paper shows that the fall in Korean export prices has been offset by the effect of export variety. This paper emphasizes the effect of export variety on international trade.     

The role of importers and exporters in the determination of the U.S. tariff preferences granted to Latin America

This paper investigates the role played by domestic importers and foreign exporters in improving preferential access to the domestic market. To this end, the framework used in this paper extends the protection for sale analysis to explicitly model the role of domestic importers and foreign exporters in the determination of preferential trade treatment. The predictions of the model are tested using data on preferential trade between the United States and Latin American countries. The results suggest that Latin American exporters and US importers' lobbying efforts have a significant and important role in determining the extent of preferential access granted by the United States. More interestingly, these findings also show that U.S. importers capture a very substantial share of the rents generated by tariff preferences. These results therefore shed a pessimistic view on preferential trade schemes as a reliable source of gains for developing countries.     

Asymmetric effects of financial development on South-South and South-North trade: Panel data evidence from emerging markets

Using bilateral trade data in total and technology-and-skill-intensive manufactured goods for 28 developing countries that account for 82% of all developing country manufactures exports between 1978 and 2005, this paper explores the effects of financial development on the pattern of specialization in South-South and South-North trade. The empirical results using dynamic panel regressions and comprehensive sensitivity tests suggest that financial development in the South has an economically and statistically significant positive effect on the share of total and technology-and-skill-intensive manufactures exports in GDP, and total exports in South-South trade. In contrast, no such significant or robust effect of financial development is found in South-North trade. Overall, the positive effect of financial development is found to be asymmetric favoring South-South significantly more than South-North trade. In addition, financial development is found to be increasing technology-and-skill-intensive manufactured goods exports significantly more than total manufactured or merchandise goods exports.     

Strategic competition and optimal parallel import policy

Abstract In a two‐country Hotelling type duopoly model of price competition, we show that parallel import (PI) policy can act as an instrument of strategic trade policy. The home firm’s profit is higher when it cannot price discriminate internationally if and only if the foreign market is sufficiently bigger than the domestic one. The key mechanism in the model is that the home firm’s incentive to keep its domestic price close to the optimal monopoly price affects its behavior during price competition abroad. We also analyze the welfare implications of PI policies and show that our key insights extend to quantity competition.