Ricardian Trade Model Research Articles

Firms' heterogeneity, incomplete information, and pass-through

A large body of empirical work documents that prices of traded goods change by a smaller proportion than real exchange rates between the trading countries (incomplete pass-through). I present a Ricardian model of trade and international price-setting with heterogeneous firms, Bertrand competition and incomplete information. The model implies that: 1) firm-level pass-through is incomplete and a U-shaped function of firm-level productivity and market share; and 2) controlling for firm market share, producers operating under incomplete information, like for example new entrants in a market, exhibit lower pass-through rates than producers operating under complete information. Estimates from a panel data set of cars prices support the predictions of the model.

Quantifying the Spillovers from China Rebalancing Using a Multi-Sector Ricardian Trade Model

This paper assesses the spillovers from different facets of China rebalancing using a calibrated Ricardian trade model that includes 41 economies, each consisting of 34 sectors. We find that China’s move up the value chain in particular has the potential for significant spillovers – on the one hand, adversely affecting industrialized economies heavily involved in the Asia value chain, while at the same time generating positive spillovers to lower and middle income countries. The model’s strength lies in endogenously capturing production value chains and international trade of goods across sectors.

Quantifying the Spillovers from China Rebalancing Using a Multi-Sector Ricardian Trade Model

This paper assesses the spillovers from different facets of China rebalancing using a calibrated Ricardian trade model that includes 41 economies, each consisting of 34 sectors. We find that China's move up the value chain in particular has the potential for significant spillovers - on the one hand, adversely affecting industrialized economies heavily involved in the Asia value chain, while at the same time generating positive spillovers to lower and middle income countries. The model's strength lies in endogenously capturing production value chains and international trade of goods across sectors.

Trade, Luxury Goods and a Growth Enhancing Tariff

This article presents a Ricardian model of trade with learning-by-doing to study the effect of barriers to trade in products with low growth potential on the long-run economic growth. The model shows that, when elasticity of demand for the product with a lower learning potential is greater than unity, a tariff imposed on this product can shift the demand toward the product with a higher learning potential, thus enhancing growth in the exporter economy. Therefore, although with some possible negative effect on the welfare in the short run, barriers for the export of natural luxury goods may be beneficial for developing economies in the long run, since they increase their incentive to develop sectors with higher growth potential.

Capital Goods Trade, Relative Prices, and Economic Development

International trade in capital goods has quantitatively important effects on economic development through two channels: capital formation and aggregate TFP. We embed a multi country, multi sector Ricardian model of trade into a neoclassical growth framework. Our model matches several trade and development facts within a unified framework: the world distribution of capital goods production and trade, cross-country differences in investment rate and price of final goods, and cross-country equalization of price of capital goods. Reducing barriers to trade capital goods allows poor countries to access more efficient means of capital goods production abroad, leading to relatively higher capital output ratios. Meanwhile, poor countries can specialize more in their comparative advantage—non-capital goods production—and increase their TFP. The income gap between rich and poor countries declines by 40 percent by eliminating barriers to trade capital goods.

Agricultural Productivity, Infrastructures and the Optimal Timing of Opening Trade

This study develops a dynamic Ricardian trade model that incorporates productive infrastructures into the manufacturing sector. The costs of building infrastructures are financed by tax. We investigate the relationship between the timing of opening trade and total welfare. The main results are as follows: (1) there is the optimal tax rate maximizing the total welfare; (2) an increase in agricultural productivity can accelerate the timing of opening trade, which, however, does not necessarily improve total welfare; and (3) total welfare under specialization in manufacturing can be higher than that under specialization in agriculture depending on the prevailing conditions.

RCA indices, multinational production and the Ricardian trade model

The practice of using Revealed Comparative Advantage (RCA) Indices to determine the flow of goods trade among countries is well established. But an important issue that demands attention is whether the RCA indices reflect the essentials of comparative advantage theory. Deb and Basu Foreign Trade Rev 46(3):3–28, (2011) examined the consistency of alternative RCA indices with the Heckscher-Ohlin theory of comparative advantage, leaving scope for re-examination of the indices in the context of the Ricardian comparative advantage theory, which insists on relative factor productivity differences among countries contrary to Heckscher-Ohlin’s relative factor endowment differences. The other issue which has been overlooked in much of the existing literature is the importance of value-added trade. With the growing importance of global production chains, RCA indices based on gross export values may not portray an accurate picture of the underlying comparative advantage of countries. In this context, adjusting the RCA indices to incorporate domestic value-added in exports seems to be quite relevant. This paper explores the consistency of RCA indices based on domestic value-added in exports with the Ricardian theory of comparative advantage using a panel data approach. A brief review on the structures of alternative RCA indices is also provided. The Log-of-Balassa index is found to be the best performer in this empirical examination, although the deficiencies of the index for cross-country or cross-commodity comparison must be acknowledged. The index of Yu et al. Ann Reg Sci 43(1):267–282, (2009) does possess the latter feature but in our study its performance is quite poor and hence its consistency with the Ricardian theory of comparative advantage is questionable.

Love for quality, comparative advantage, and trade

We propose a Ricardian trade model with horizontal and vertical differentiation, where willingness to pay for quality rises with income, and productivity differentials across countries are stronger for high-quality varieties of goods. Our theory predicts that the scope for trade widens and international specialisation intensifies as incomes grow and wealthier consumers raise the quality of their consumption baskets. This implies that comparative advantages strengthen gradually over the path of development as a by-product of the process of quality upgrading. The evolution of comparative advantages leads to specific trade patterns that change over the growth path, by linking richer importers to more specialised exporters. We provide empirical support for this prediction, showing that the share of imports originating from exporters exhibiting a comparative advantage in a specific product correlates positively with the importer's GDP per head.

Does Preferential Trade Benefit Poor Countries? A General Equilibrium Assessment with Nonhomothetic Preferences

AbstractWe develop a Ricardian model of trade with nonhomothetic preferences to analyze preferential trade agreements (PTAs) among countries of different stages of economic development. The richer a country is, the more likely will PTAs improve its terms of trade, also when it is a non‐member. Rich non‐member countries are also less likely to incur welfare losses from PTAs. PTA membership only guarantees welfare gains for countries that are too poor to import the goods rich countries produce. For all other countries, the welfare effects of joining PTAs depend on the world income distribution and on the strength of comparative advantages.

Productivity, Trade, and Relative Prices in a Ricardian World

In an extended Ricardian model of trade, we study the effects of improving trade deficits on relative prices, and the relation between productivity improvements and real exchange rates. An improvement in the trade balance induces relative wages to overshoot their long-run value, placing downward pressure on the terms of trade of the same order of magnitude found in Armington type models. Once the pattern of specialization changes, some of the decline is reversed with a smaller value of depreciation. We find that persistent productivity differentials do not cause distinct trends in the terms of trade. The result depends on the size of the non-tradable sector and the variability of industry-specific efficiencies. We also find that self-selection into export markets causes the relative price of non-tradable goods to respond to exogenous shift, giving birth to an endogenous Balassa-Samuelson effect. The model also suggests that in the long-run the variation of the real exchange rate is dominated by the volatility of the terms of trade.

Revealed Comparative Advantage: What Is It Good For?

This paper utilizes a many-country, many-product Ricardian trade model to evaluate the usefulness of measures of revealed comparative advantage (RCA) in academic and policy analyses. I find that, while commonly used indexes are generally not consistent with theoretical notions of comparative advantage, certain indexes can be usefully employed for certain tasks. I explore several common uses of RCA indexes and show that different indexes are appropriate when attempting to (a) evaluate the differential effect of changes in trade barriers across producers of different products, (b) identify countries who are relatively close competitors in a given market, or (c) recover patterns of relative productivity.

Why Are Agricultural Goods Not Traded More Intensively: High Trade Costs or Low Productivity Variation?

AbstractThis paper empirically studies the sizes of agricultural trade costs and productivity variation in the agriculture sector. In a general Ricardian trade model, I identify these two factors as possible causes of the observed low trade intensity of agricultural goods. Using data on bilateral trade flows, prices of agricultural goods and sectoral production from a sample of 46 countries, I estimate the variation of agricultural productivity as well as trade costs on agricultural and manufactured goods. I find that trade costs are substantial, with agricultural trade costs roughly twice as large as manufacturing trade costs. Moreover, consistent with the existing literature, I find that distance is the dominant part in the estimated trade costs. Lastly, relative to existing estimates of the heterogeneity of manufacturing productivity, the heterogeneity of agricultural productivity is large. These findings suggest that high trade costs are the main impediments to agricultural trade.

Capital Goods Trade and Economic Development

Almost 80 percent of capital goods production in the world is concentrated in 10 countries. Poor countries import most of their capital goods. We argue that international trade in capital goods has quantitatively important effects on economic development through two channels: (i) capital formation and (ii) aggregate TFP. We embed a multi country, multi sector Ricardian model of trade into a neoclassical growth model. Barriers to trade result in a misallocation of factors both within and across countries. We calibrate the model to bilateral trade flows, prices, and income per worker. Our model matches several trade and development facts within a unified framework. It is consistent with the world distribution of capital goods production, cross-country differences in investment rate and price of final goods, and cross-country equalization of price of capital goods and marginal product of capital. The cross-country income differences decline by more than 50 percent when distortions to trade are eliminated, with 80 percent of the change in each country’s income attributable to change in capital. Autarky in capital goods results in an income loss of 17 percent for poor countries, with all of the loss stemming from decreased capital.

The Sectoral Pro-Trade Effects of Ethnic Networks within a Ricardian Model of Trade

This paper investigates the trade migration link within a Ricardian model a la Eaton and Kortum (2002) and it quantifies the pro-trade effects of immigrants for 18 manufacturing sectors in a sample of 19 OECD countries. The results are robust across different econometric specifications and they indicate "pulp, paper, paper products, printing and publishing" as the sector where immigration has the greatest impact on trade. The analysis shows that accounting for ethnic networks in the trade share equation has important implications for the estimation of trade cost elasticity parameter across all manufacturing sectors. By following a two-step approach to estimate trade cost elasticity at sector level where "theta" is proportional to the effect of wages on exporter fixed effects, I find that in total manufacturing "theta" decreases by 1.03 when ethnic networks are included among the determinants of trade. This drop of trade cost elasticity approximately corresponds - on average - to a welfare gain of 4.16% of national income.

Nontraded Goods and Real Exchange Rates in a Multi‐Good Ricardian Model

AbstractThe two‐country Ricardian trade model with discrete goods and uniform transport costs for tradable goods is applied to the decomposition of the real exchange rate into traded and nontraded components. The real exchange rate is driven almost entirely by changes in the productivity differentials in nontraded goods and also explains the Balassa–Samuelson effect of a lower cost of living in poor countries, but extraordinary transport costs for some nontraded goods are necessary to easily explain the Balassa–Samuelson effect.

Agricultural Exports, Tariffs and Growth

This article presents a Ricardian model of trade with learning-by-doing to study the effect of barriers to trade in products with low growth potential on the long-run economic growth. The model shows that, when elasticity of demand for the product with a lower learning potential is lower than unitary, a reduction in the tariff imposed on this product, may shift the demand toward the product with a higher learning potential, thus enhancing economic growth in the exporter economy. Therefore, the current trend of reduction in tariffs on agricultural exports not only generates a positive welfare effect in the short run, but may similarly be beneficial for developing economies in the long run, since it also increases their incentive to develop sectors with higher growth potential.

Capital Goods Trade and Economic Development

We argue that international trade in capital goods has quantitatively important effects on economic development through two channels: (i) capital formation and (ii) aggregate TFP. We embed a multi country, multi sector Ricardian model of trade into a neoclassical growth model. Barriers to trade result in a misallocation of factors both within and across countries. Our model matches several trade and development facts within a unified framework. It is consistent with the world distribution of capital goods production, cross-country differences in investment rate and price of final goods, and cross-country equalization of price of capital goods. The cross-country income differences decline by more than 50 percent when trade frictions are eliminated, with 80 percent of the change in each country's income attributable to change in capital.

Going Deep: The Trade and Welfare Effects of TTIP

Since July 2013, the EU and the US have been negotiating a preferential trade agreement (PTA), the Transatlantic Trade and Investment Partnership (TTIP). We use a multi-country, multi-industry Ricardian trade model with national and international input-output linkages to quantify its potential economic consequences. We structurally estimate the sectoral trade flow elasticities of trade costs and of existing PTAs. We simulate the trade, value added, and welfare effects of the TTIP, assuming that the agreement would eliminate all transatlantic tariffs and reduce non-tariff barriers as other deep PTAs have. The long-run level of real per capita income would change by 2.12% in the EU, by 2.68% in the US, and by -0.03% in the rest of the world relative to the status quo. However, there is substantial heterogeneity across the 134 geographical entities that we investigate. Gross value of EU-US trade could triple, but its value added would grow by substantially less. Moreover, trade diversion effects are more pronounced in value added trade than in gross trade. This signals a deepening of the transatlantic value chain.

Technological intensity of the export structure and the real exchange rate

This paper discusses the effects of the real exchange rate (RER, defined as the price of the foreign currency in units of the domestic currency, adjusted by price levels) on the diversification and technological intensity of the export structure. Based on a North-South Ricardian model of trade with a continuum of goods, in which comparative advantage depends on the RER and leads and lags in innovation and diffusion of technology, two hypotheses are suggested and tested. The first one is that a higher RER allows for a higher diversification of exports. The second hypothesis is that this diversification implies an upgrading in the technological intensity of exports. We find favorable evidence for the two hypotheses from a panel data study, including 111 counties in the period 1962–2008. These results suggest that a competitive RER should be considered a relevant variable in the process of economic development as it encourages the transformation of the pattern of specialization.

Estimating the Elasticity of Trade: The Trade Share Approach

Recent theoretical work on international trade emphasizes the importance of trade elasticity as the fundamental statistic needed to conduct welfare analysis. Eaton and Kortum (2002) proposed a two-step method to estimate this parameter, where exporter fixed effects are regressed on proxies for technology and wages. Within the same Ricardian model of trade, the trade share provides an alternative source of identification for the elasticity of trade. Following Santos Silva and Tenreyro (2006) both trade share and EK models are estimated using OLS and Poisson PML to test for the presence of heteroskedasticity-type-of-bias. The evidence from both specifications suggests that the bias in the OLS estimates significantly impacts the magnitude of trade cost elasticity. The welfare analysis reveals that the resulting extreme variability of the trade cost elasticity and the imposition of a common manufacturing share parameter for all countries generate substantial distortions in the calculation of benefits from trade.