World trade patterns and prices: The role of productivity and quality heterogeneity

This paper analyzes the role of product quality and labor efficiency in shaping the trade patterns and trade intensities within and across two groups of countries, the developed and richer North and the developing South. Recent empirical literature identifies two groups of evidence — the product lines evidence on different export strategies and sources of competitiveness across product groups and countries, and the aggregate trade flows evidence on a positive relation between the income per capita and both export and import prices (also conditional on the exporter). We attempt to provide a theoretical background for these findings and focus on the North–South productivity differences in a four country North–South trade model with two dimensions of firm heterogeneity. Differences in the firms' product quality and cost efficiency impose different competitiveness sources when entering more difficult markets and result in the observed export and import prices and consumption bundles across the rich and poor countries.     

The effect of exchange rate uncertainty on the prices and volume of international trade

By specifying a model of differential risk-bearing by import demand and export supply sides of the market for traded goods, the theoretical impact of exchange risk on both equilibrium prices and quantities is analyzed. For several empirical cases of 1965–1975 U.S. and German trade it is found that exchange rate uncertainty has had a significant impact on prices but no significant effect on the volume of trade. These price effects support previous survey results on the currency denomination of export contracts, namely that with the exception of some U.S. imports, most trade is largely denominated in the exporter's currency.     

Costly investment and complementarities in an international trade model with directed technological change

We investigate the impacts on the skill premium and on economic growth in an innovator‐imitator general equilibrium growth model assuming: (a) directed technological change; (b) international trade of intermediate goods; (c) internal costly investment in both physical capital and R&D; and (d) complementarities between intermediate goods in aggregate production. With trade of intermediate goods, the complementarities degree and investment costs influence the economic growth of both countries, but do not affect the countries' skill premia, which are directed by technological knowledge. Additionally, in agreement with related empirical literature, openness to trade of intermediate goods leads to a higher equilibrium skill premium in both countries, whereas its impact on the common growth rate can vary in sign.     

Trade liberalization, wage inequality, and endogenously determined nontraded goods

We examine the boundary between traded and nontraded goods as a channel for trade to impact factor prices. In a two-country, two-factor, continuum-good model, tariffs generate a range of nontraded goods. A tariff reduction has a direct effect to expand a country’s import set and an indirect effect through terms of trade to expand its export set. We show that the export expansion can dominate the import expansion, raising the relative demand for the factor intensively used in production. The result is useful in explaining observed rising wage inequality in developing countries following trade liberalization.     

Export Market Participation,Investments in R&D and Worker Training,and the Evolution of Firm Productivity

This paper uses micro panel data for firms in the Taiwanese electronics industry in 1986, 1991 and 1996 to investigate a firm's decision to invest in two sources of knowledge – participation in the export market and investments in R&D and/or worker training – and assess their effect on the firm's future productivity. The firm's decisions to export and invest in R&D and/or worker training are modelled with a bivariate probit model that recognises the interdependence of the decisions. The effect of these investments on the firm's future productivity trajectory is then modelled while controlling for the selection bias introduced by endo‐genous firm exit. The findings indicate a significant interaction effect between exporting and R&D investments and future productivity, after controlling for size, age and current productivity. Firms that undertake both investment activities have significantly higher future productivity than firms that do one or neither. In addition, these firms are more likely to continue investing in these activities leading to further productivity gains. These findings are consistent with the hypothesis that export experience is an important source of productivity growth for Taiwanese firms and that firm investments in R&D and worker training facilitate their ability to benefit from their exposure to the export market.     

Trade Growth in a Heterogeneous Firm Model: Evidence from South Eastern Europe

In 2007 a free trade area (BFTA) will be created in the Balkans. In this paper we study BFTA‐induced trade growth in the SEE. Given that welfare impacts associated with trade growth depend on the growth channels, more goods and varieties exported or at higher price or more volume of exported goods and varieties, we study the structure of integration‐induced export growth in the Balkans. Given that no firm‐level trade data is available for the Balkans, we adopt the heterogeneous firm framework, which allows to decompose aggregate trade growth into intensive margin of trade and extensive margin of trade using only aggregate trade data. Our empirical findings predict that the BFTA would primarily increase the export volume through a growing number of shipments (the extensive margin of trade) suggesting that the actual welfare gains from the trade growth in the Balkans might in fact be larger than predicted in previous trade studies. We also found that reducing variable trade costs leads to higher export growth rates compared to reducing fixed trade costs by the same percentage.     

Innovation and Exporting: Does Quality Matter?

We study the effect of innovation on a firm’s propensity to export, developing a simple model where heterogeneous firms operate in a monopolistically competitive market and set their prices as a markup above the marginal cost. The key proposition of our model is that firms that invest in better quality products are more likely to export. We test it using Italian firms’ data. Econometric results suggest that innovation, defined as quality upgrading, has a significant effect on the firms’ propensity to export; and, for those who are already exporting, innovation—defined as new products—has a significant effect on a firm’s turnover.     

Duopolists’ Retail Pricing Behavior in Multiple Markets

The law of one price asserts that, with costless trade, prices for identical goods in different countries should be equal after accounting for the exchange rate. The empirical literature suggests that exchange rate pass-through to prices is low and that the law of one price fails; instead, firms are more likely to price to market. This study adds to the literature by examining the pricing strategy of comic book firms within the context of the competition’s pricing behavior in a duopoly industry. Comic books, uniquely, display their retail prices in multiple countries on their cover giving us detailed information about the pricing behavior of each individual firm and their competition which allows us to test a pricing-to-market model. We find that an empirical model of an imperfectly applied law of one price outperforms a simple competitive, pricing-to-market model of pricing. Retail exchange rate pass-through rates between Canada and the United States average 76.8 %. This high exchange rate pass-through rate for comic books exists despite the existence of sticky prices and convenience pricing.     

The Performance of Trading Firms in the Services Sectors – Comparable Evidence from Four EU Countries

We examine trade complexity and the implications of adding additional dimensions of trade for firm performance among services producers. We use unique firm‐level data to compare these patterns across four EU countries. Overall, services firms are relatively less engaged in trade than manufacturing firms; they mostly trade goods and are more likely to import than to export. Trade in services is quite rare; services are more likely to be traded by firms already trading goods. Trading firms in the services sectors are significantly larger, more productive and pay higher wages than non‐traders. Two‐way traders outperform one‐way traders. Changes in trading status by either adding another dimension of trade (imports, exports) or another type of product (goods, services) are infrequent and are associated with significant preswitching premia. In contrast, learning effects from switching trading status are uncommon. This points to significant fixed cost of being engaged in trade and confirms some previous findings that trading services firms have similar traits as their manufacturing counterparts. Apart from greater trade participation in smaller countries, we do not observe systematic differences in terms of trade or switching premia between the four countries that might be attributable to differences in country characteristics.     

Country size and trade in intermediate and final goods

This paper documents a negative relationship between country size and the share of final consumption goods in total exports. A model is developed, based on the division of labour and comparative advantage, to explain this relationship. Labour is used to produce traded intermediate inputs which are used in the production of traded final goods. Large countries gain relatively more from comparative advantage than from the division of labour, while the opposite is true for small countries. As in the data, large countries export a smaller share of final goods and a larger share of intermediate goods than small countries. It is shown that the model developed in the paper yields the same results as a model based on monopolistic competition.     

A model of demand,productivity and foreign location decision among Taiwanese firms

We develop a theoretical framework to examine the relative importance of firm demand and productivity in firm decisions to export and where to locate foreign direct investments. The model shows that the equilibrium firm decision depends on product technology, consumer preference for product quality, fixed investment costs of establishing a foreign subsidiary, transportation costs and relative wages. Our empirical results confirm the predictions of the theoretical model. Firm-level demand and productivity components are important in explaining the decision to participate in foreign markets with their relative importance depending on the firm's organizational form (exports versus FDI) and the destination of the investments. In general, FDI firms are more productive than exporting firms regardless of FDI destinations. FDI firms also have a higher demand component than exporters and this demand component is stronger than productivity. Finally, among FDI firms, while those with a high demand index and productivity have a significantly higher propensity to invest in high-income countries, firm productivity is the sole determinant of firms undertaking FDI in low-income countries.     

Market‐specific Sunk Export Costs: The Impact of Learning and Spillovers

Firms may face sunk costs when entering an export market. Previous studies have focused on global or country‐specific sunk export costs. This study analyses the importance of market‐specific sunk export costs (defining ‘market’ as a product–country combination). We also study how market‐specific export costs can be affected by various kinds of learning and spillover effects. We use firm‐level panel data for Norwegian seafood exports distributed on products and countries. The results lend support to the hypothesis of market‐specific sunk costs. We also find evidence of learning and spillover effects, particularly within the same product group.     

Learning to export: Export growth and the destination decision of firms

I find evidence that the geographic expansion of firm exports occurs slowly over time and that a large share of export growth is due to incumbent exporters entering new destinations. New exporters enter large countries and destinations with characteristics similar to their domestic market. Less similar, distant or less developed countries are entered by firms already exporting to other destinations. I formulate a dynamic general equilibrium model to test if these patterns are due to firms learning how to export (as other recent empirical findings have suggested) or other factors considered in the literature. In this model, heterogeneous firms experience learning in the form of market entry costs that depend on export history. Using Russian firm level data, I find that learning plays a significant role in explaining the observed entry patterns, which standard trade models cannot account for.     

Labor market institutions,firm-specific skills,and trade patterns

This paper studies how a country's labor market institutions, by affecting workers' skill acquisition, can shape its export patterns. I develop an open-economy model in which workers undertake non-contractible activities to acquire firm-specific skills on the job. In the model, labor market protection raises workers' incentives to acquire firm-specific skills relative to general skills, turning labor laws into a source of comparative advantage. In particular, the model shows that countries with more protective labor laws export relatively more in firm-specific skill-intensive sectors at both the intensive and extensive margins. To test the theoretical predictions, I construct sector proxies for the firm-specific and industry-specific skill intensity by estimating returns to firm tenure and industry tenure for different U.S. manufacturing sectors during the 1974–1993 period. By estimating sector-level gravity equations for 84 countries using the Helpman–Melitz–Rubinstein (2008) framework, I find evidence supporting the predicted effects of labor market institutions at both margins of exports.     

The Extensive and Intensive Margins of Exports: The Role of Innovation

An important prediction of trade theories is that innovation can improve a country’s export performance. Using data on patents granted by the US as a proxy for innovation and data on manufacturing exports from 105 countries over the period 1975–2001, I investigate the extent to which innovation increases the number of products traded (the extensive margin) and the export value of each product (the intensive margin). The empirical results show that (i) innovation has a positive and significant effect on both the extensive and intensive margins. The intensive margin contributes 70 per cent of the effect, and the extensive margin accounts for 30 per cent. (ii) The effect of innovation on exports is stronger for low‐income countries than for high‐income countries. (iii) More innovative countries export greater quantities and charge higher prices, suggesting that innovation increases the product quality of exports.     

Export quality differentiation under credit constraints

This paper studies the effect of credit constraints on the choice by small and medium-sized enterprises to export goods of higher quality relative to their domestically sold output (quality differentiation). The empirical analysis employs detailed firm-level data on product characteristics and credit scores. Credit constraints are found to be negatively associated with export quality differentiation. Firms reporting a deterioration of the credit score by a standard deviation are 36% less likely to pursue quality differentiation. The negative relation between credit constraints and quality differentiation is stronger for firms exporting to distant markets.     

Foreign Ownership and the Extensive Margins of Exports: Evidence for Manufacturing Enterprises in Germany

We examine how foreign ownership of a firm affects the variety of goods that the firm exports and the number of countries it trades with. We construct a simple theoretical model of how foreign ownership may affect these extensive margins of exports and take this model to data from Germany, one of the leading actors on the world market for goods. In line with theoretical predictions we find that foreign‐owned firms do export more goods to more countries after controlling for firm size, productivity and industry affiliation. These differences between foreign‐owned firms and domestically controlled firms are highly statistically significant, and they are large from an economic point of view, with foreign‐owned firms exporting up to 39 per cent more goods to up to 31 per cent more countries.     

Firm heterogeneity and aggregate business services exports: Micro evidence from Belgium,France, Germany and Spain

This paper uses detailed micro data on services exports at the firm–destination–service level to analyse the role of firm heterogeneity in shaping aggregate services exports in Belgium, France, Germany and Spain from 2003 to 2007. We decompose the level and the growth of aggregate services exports into different trade margins paying special attention to firm heterogeneity within countries. We find that the weak export growth of France is at least partly due to poor performance by small exporters. By contrast, small exporters are the most dynamic contributors to the aggregate exports of Belgium, Germany and Spain. Our results highlight the importance of firm heterogeneity in understanding aggregate export growth.     

Trade facilitation and the extensive margin

The literature on trade facilitation has mostly focused on implications for trade volumes. However, recent theoretical contributions have emphasized that trade costs – such as transaction costs related to cross-border trade procedures – affect both the traded volumes of ‘old’ goods (the intensive margin) and the range of traded goods (the extensive margin). This article therefore tests whether trade facilitation affects the extensive margin by counting the number of 8-digit products that are exported from developing to EU countries, and using this as the dependent variable in an estimation. Moreover, it also tests whether the extensive margins in differentiated and homogeneous goods are affected in the same way by transaction costs. Estimation results suggest that if export transaction costs – proxied by the number of days needed to export a good – declined by 1%, the number of exported differentiated and homogeneous products would rise by 0.6% and 0.3%, respectively. Policy simulations further illustrate that if all countries were as efficient at the border as the most efficient country at the same level of development, the number of exported differentiated and homogeneous products would increase by 62% and 26%, respectively.     

Tariffs, quality reversals and exit in vertically differentiated industries

In a vertically differentiated industry a domestic and a foreign firm first choose the quality of their goods and then compete in quantities, or prices, in the home market. We investigate the cases in which a tariff is chosen before, or after, the firms’ quality decision. These cases are referred to as the ex-ante and the ex-post game, respectively. Optimal ex-post tariffs are positive and ensure that the domestic firm always produces the high quality good. The optimal ex-ante tariff is prohibitive and welfare under domestic monopoly is lower than under ex-post tariffs, unless firms compete in prices and the domestic firm is high quality.