Pecking order and core‐periphery in international trade

This paper analyzes the impact of market size and trade costs on bilateral trade flows. A multi‐country trade model with firm‐level heterogeneity in productivities and countries’ market potential provides a simple micro foundation for the link between these variables. In the model, market size and trade costs jointly determine a country‐specific pecking order of exporters serving their destination countries. In a counterfactual setting where bilateral trade costs are homogeneous across country pairs, market size predicts a common ranking of exporters among destination countries. This leads to a unique core‐periphery structure of the world trade network. With heterogeneous trade costs, we illustrate the impact of market size and trade costs on bilateral trade flows and its margins in a simple gravity‐like setting. Using an instrumental variables approach, we find that both market size and trade costs (measured through the network position of countries) have a significant impact on bilateral exports: countries in the core bilaterally trade more with other countries in the core than with peripheral countries, conditional on typical observables.     

Per capita income and the extensive margin of bilateral trade

This paper quantitatively explores the role of demand in explaining the positive correlation between an importer's per capita income and the extensive margin of bilateral trade. The theoretical mechanism is based on agents that increase the set of goods they consume with income. This affects the structure of a country's import demand and therewith the extensive margin of trade. We formalize this intuition by incorporating preferences that allow for binding non‐negativity constraints into an otherwise standard Ricardian multi‐country model. We quantify the model and find that the behaviour of the model's extensive margin of trade is consistent with the data.     

HOW IMPORTANT ARE TERMS‐OF‐TRADE SHOCKS?

According to conventional wisdom, terms‐of‐trade shocks represent a major source of business cycles in emerging and poor countries. This view is largely based on the analysis of calibrated business‐cycle models. We argue that the view that emerges from empirical structural vector autoregression (SVAR) models is strikingly different. We estimate country‐specific SVARs using data from 38 countries and find that terms‐of‐trade shocks explain less than 10% of movements in aggregate activity. We then estimate key structural parameters of a three‐sector business‐cycle model country by country and find a disconnect between the importance assigned to terms‐of‐trade shocks by theoretical and SVAR models.     

An Eaton–Kortum model of trade and growth

We combine a multi‐country, continuum‐good Ricardian model of Eaton and Kortum (2002) with a multi‐country AK model of Acemoglu and Ventura (2002) to examine how trade liberalization affects countries' growth rates and extensive margins of trade over time. Focusing on the three‐country case, we obtain three main results. First, a permanent fall in any trade cost raises the balanced growth rate. Second, trade liberalization increases the liberalizing countries' long‐run fractions of exported varieties to all destinations. Third, the long‐run effects of trade liberalization are different from its short‐run effects, which can reverse the welfare implications of the static Eaton–Kortum model.     

Internal trade,productivity and interconnected industries: A quantitative analysis

Does trade within a country affect welfare and productivity? What are the magnitude and consequences of costs to such trade? To answer these questions, we exploit unique Canadian data to measure internal trade costs in a variety of ways—they are large and vary across sectors and provinces. To quantify their consequences for welfare and productivity, we use a recent multi‐sector trade model featuring rich input–output relationships. We find interprovincial trade is an important contributor to Canada's GDP and welfare, though there are significant costs to such trade. Reducing interprovincial trade costs by 10% yields aggregate gains of 0.9%; eliminating our preferred estimates of costs, gains average between 3% and 7%—equivalent to real GDP gains between $50 billion and $130 billion. Finally, as policy reforms are often sector specific, we liberalize sectors one at a time and find gains are largest in highly interconnected industries.     

Stable Tariffs and Retaliations*

A two‐country, two‐commodity model of trade is considered to reformulate the tariff retaliations. It is known that tariff retaliations lead to a Nash‐equilibrium, a non‐free‐trade outcome. However, the negotiation process underlying the Nash equilibrium does not capture the notion of retaliation properly. We use the “contingent threat situation” to reformulate tariff retaliations. In this context, we show that the free trade is a stable outcome. More surprisingly, this interesting result is also valid for the “Johnson case,” where one country is better off under the tariff‐ridden Nash equilibrium compared to free trade.     

Policy and performance in customs: Evaluating the trade facilitation agreement

This paper links cross‐country variation in trade facilitation policies to prominent indicators of national customs and logistics performance. We test the hypotheses that the policy data explain variation in the performance indicators, independent of other country characteristics that are plausibly exogenous to changes in trade facilitation policies. We use a LASSO procedure to choose among the many potential explanatory variables in the model. In general we find that country characteristics related to geography, income, and the general quality of governance better explain cross‐country variation in customs and logistics performance than do the measures of trade facilitation policy.     

Rigid labour markets with trade and capital mobility: theory and evidence

Abstract We develop a multi‐country model with imperfect labour markets to study the effect of labour market frictions on bilateral trade flows. We use a framework that allows for goods trade and capital mobility and show that labour market imperfections exert opposite effects in the absence of capital mobility (the short run) and its presence (the long run), respectively. In the short run, a higher degree of labour market rigidity decreases the value of total trade, but increases the share of intra‐industry trade for a country that is larger than its trading partner. The reverse effects are observed when capital is allowed to cross country borders. Using data on unemployment and income distribution for 23 OECD countries, we compute the central parameter in our theoretical model that describes the degree of labour market rigidity. We use this new empirical concept to provide evidence for our theoretical findings by means of reduced‐form regressions as well as simulation results of a calibrated general equilibrium model.     

Trade costs,quality and the skill premium

We develop a monopolistic competition model with non‐homothetic factor input bundles where increasing quality requires increasing use of skilled workers. As a result more skill abundant countries export higher quality, higher priced goods. Using a multi‐country dataset, we test and confirm the findings in Schott ( 2004 ) of a positive effect of skill abundance on unit values identified with US data. We extend the core model with per unit trade costs leading to the Washington apples effect that goods shipped over larger distance are of higher quality. The combination of high‐quality goods being relatively skill intensive with the Washington apples effect implies that countries at a larger distance from their trading partners display a higher skill premium. Simulating our model, we find that a doubling of distance of a country relative to all its trading partners raises the skill premium in a country by about 1.6%.     

On the Differential Impact of the Asian Crisis on the World Economy: A General Equilibrium Perspective

Abstract Three years and more have passed since the outbreak of the Asian Financial crisis in 1997. We observe that the world economy was far from a ‘global slump,‘ yet the burden of adjustment had been uneven across countries. The crisis had a negative effect on the other developing countries, while the impact on industrial economies had been small, and even positive at the onset of the crisis. In this paper, we attempt to shed light on this differential impact of the crisis, and illustrate the uneven mechanics of adjustment in a world with commodity trade and capital flows. The analysis is conducted in an intertemporal general equilibrium model with multi‐region and multi‐commodity specification.     

Trade balance dynamics and exchange rates: In search of the J‐curve using a structural gravity approach

This paper uses a structural gravity approach, specifying currency movements as trade cost component to derive an empirical trade balance model, which incorporates multilateral resistance terms and accounts for the cross‐country variation in the exchange rate pass‐through into import and export prices. The model is estimated using quarterly bilateral trade flows between 47 countries over the period 2010Q1 to 2017Q2, disaggregated into 97 commodity groups. Our results support the existence of an “aggregate” J‐curve, pooled over commodity groups; at the same time they point to considerable heterogeneity in the trade balance dynamics across industries below the surface of aggregate data.     

Estimating the Euro Effects on Trade with Propensity Score Matching*

We investigate the effect of the euro on trade among EMU members. Using various semi‐nonparametric methods based on matching, we find that the euro has a statistical and economic impact on trade. The results show that two countries sharing the euro currency trade somewhere between 9% and 14% more than other country‐pairs. In addition, we find no evidence of trade diversion due to the euro.     

Does complexity explain the structure of trade?

This paper analyzes whether complexity, measured by the number of skilled tasks that are performed in production, explains countries’ commodity trade structure. We modify the Romalis ( 2004 ) model to incorporate advantage differences in complexity across commodities together with differences in the number of mistakes made by workers in the production process in developed and developing countries as a source of comparative advantage. Our model predicts that the share of developed countries in world trade increases with products’ complexity. Empirical tests confirm this prediction. Moreover, we find that complexity complements the explanation provided by skill‐intensity on countries’ commodity trade structure.     

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.     

Who Trades with Whom? Exploring the Links between Firms' International Activities,Skills, and Wages

Using firm‐level data on the Italian manufacturing industry, we examine how trade activities are related to workforce composition and wages. We contribute to empirical research on these issues in three ways. First, we provide new evidence that is consistent with multi‐attribute models on firm heterogeneity and trade. We show that even after controlling for various company characteristics, including size and capital intensity, exporters still pay higher wages and employ more skilled workers than nonexporters. Second, we consider engagement in international transactions, either by means of exports, imports, or a combination of the two. We show that failing to control for importing activities may bias upward export premia. Third, we look at how the wage and the employment structures of trading firms change with the country of destination and origin of trade flows. We find that wage and skill premia are influenced by the characteristics of partner countries.     

Trade Elasticities

Conventional aggregate trade elasticity estimates hardly vary across countries. We introduce an aggregate elasticity that is implied by theory: It is the value that equates the welfare gains from trade as implied by one‐ and multi‐sector versions of the model in Arkolakis et al. (American Economic Review, 102 (2012):94–130). These estimates are predicated on sector‐level values for trade elasticites, which we provide at three‐digit levels for 28 developed and developing countries. The values for this aggregate elasticity vary greatly across countries, and they do so because of countries' patterns of production and because a given sector‐level elasticity displays considerable cross‐country heterogeneity.     

International risk sharing and commodity prices

Abstract Cole and Obstfeld (1991) exposited a classic result where equilibrium movements in the terms of trade could make ex ante risk‐sharing arrangements unnecessary: a unity elasticity of substitution across goods and production specialization. This paper extends their model to N countries and M commodities (N > M). Here the terms of trade provides insurance against commodity‐specific shocks, not country‐specific shocks. Using commodity‐level production data at the national level and world commodity prices, we document significant terms of trade variability and positive responses of nation‐specific production to terms of trade improvements. The endogenous terms of trade insurance mechanism highlighted in CO is virtually non‐existent.     

The Long-run Trade Pattern in a Growing Economy

We analyze the determinants of the trade pattern in a two-country growing economy. The long-run trade pattern depends on the structure of the absolute advantage as well as the comparative advantage, because the absolute advantage determines the terms of trade and the value of the marginal product of capital which affect the growth rate in our model. Moreover, we find that opening trade reduces or removes the difference in the growth rates of the two countries when the country lagging in the growth rate has a comparative advantage in a consumption commodity. Received June 18, 2001; revised version received July 16, 2002 Published online: April 30, 2003     

A Factor Endowment Theory of Endogenous Growth and International Trade

This paper presents a dynamic general equilibrium model of multi‐country, two‐good and two‐factor, in which both long‐run growth and international trade patterns are examined. In each country, government expenditure on a public intermediate good plays a crucial role in the realization of persistent growth. It is shown that the long‐run pattern of international trade is determined in a Heckscher‐Ohlin manner.     

Output/Endowment and Commodity/Factor Price Relationships and Welfare in a Multilateral Trade Model with Partial Factor Mobility

A multilateral model of trade with both commodity flows and partial mobility of factor flows is set up. This model is used to develop factor endowment/output relationships as well as commodity/factor price relationships. Welfare consequences of these parametric shifts are examined. The model is built on the customs union framework which involves three countries and both commodity and factor flows. Owing to spillover effects in multilateral trade models, many nontraditional results are obtained. Many developed countries accept skilled and unskilled migrants from other countries. These migrants are generally accepted on a quota system. Moreover, it has been established that an increase in the migrant quota in the presence of factor mobility may raise or lower the output and welfare in the country not receiving migrants. In fact it is shown that the non‐migrant receiving country could be immiserized due to loss of capital. The main message of this paper is that in a multilateral trade framework there exist international spillover effects which must be taken into consideration in national policymaking.