The WTO trade effect

This paper re-examines the GATT/WTO membership effect on bilateral trade flows, using nonparametric methods including pair-matching, permutation tests, and a Rosenbaum (2002) sensitivity analysis. Together, these methods provide an estimation framework that is robust to misspecification bias, allows general forms of heterogeneous membership effects, and addresses potential hidden selection bias. This is in contrast to most conventional parametric studies on this issue. Our results suggest large GATT/WTO trade-promoting effects that are robust to various restricted matching criteria, alternative GATT/WTO indicators, non-random incidence of positive trade flows, inclusion of multilateral resistance terms, and different matching methodologies.     

The effect of WTO on the extensive and the intensive margins of trade

We use 6-digit bilateral trade data to document the effect of WTO/GATT membership on the extensive and intensive product margins of trade. We construct gravity equations for the two product margins motivated by Chaney (2008). The empirical results show that standard gravity variables provide good explanatory power for bilateral trade on both margins. Importantly, we show that the impact of the WTO is concentrated almost exclusively on the extensive product margin of trade, i.e. trade in goods that were not previously traded. In our preferred specification, WTO membership increases the extensive margin of exports by 25%. At the same time, WTO membership has a negative impact on the intensive margin. Based on novel comparative statics results about how fixed and variable trade costs impact the product margins of trade, our results suggest that WTO membership works by reducing primarily the fixed rather than the variable costs of trade.     

New measures of trade creation and trade diversion

This paper estimates the effects of regional agreements on trade flows controlling for country pair, importer-year, and exporter-year fixed effects. These fixed effects capture the determinants of trade flows normally included in gravity model specifications and control for yearly shocks to countries' trade. Controlling for the fixed effects generally reduces the estimated trade impacts of regional agreements. The estimates reveal that regional agreements have significant anticipatory effects on trade flows and continue to affect trade for up to 11 years after they begin. The paper also presents estimated effects on individual countries' trade flows in year five of the agreements.     

Modelling the Extensive Margin of World Trade: New Evidence on GATT and WTO Membership

Recent literature has argued that, contrary to the results of a seminal paper by Rose (2004), General Agreement on Tariffs and Trade (GATT)/World Trade Organization (WTO) membership does promote bilateral trade, at least for developed economies and if membership includes non‐formal compliance. We review the literature to identify open issues. We then develop a simple extension of the gravity model that gives rise to an extensive country margin of trade separating positive trade from zero trade country pairs. The model is used to identify WTO membership effects at both the intensive and the extensive margins. Empirical estimation of this model, based on Poisson pseudo‐maximum likelihood methods with exporter and importer fixed effects, allows us to readdress the empirical issue of whether GATT/WTO membership does or does not promote trade. We find that GATT membership was successful on the extensive margin of world trade but not on the intensive margin. For the recent WTO episode (1995–2008), we find consistent and robust evidence for a substantial trade‐creating role of membership which is driven primarily by the intensive margin. WTO membership results in higher bilateral trade of about 40 per cent.     

The WTO promotes trade, strongly but unevenly

This paper furnishes robust evidence that the WTO has had a strong positive impact on trade, amounting to about 120% of additional world trade (or US$ 8 trillion in 2000 alone). The impact has, however, been uneven. This, in many ways, is consistent with theoretical models of the GATT/WTO. The theory suggests that the impact of a country's membership in the GATT/WTO depends on what the country does with its membership, with whom it negotiates, and which products the negotiation covers. Using a properly specified gravity model, we find evidence broadly consistent with these predictions. First, industrial countries that participated more actively than developing countries in reciprocal trade negotiations witnessed a large increase in trade. Second, bilateral trade was greater when both partners undertook liberalization than when only one partner did. Third, sectors that did not witness liberalization did not see an increase in trade.     

Estimating the effects of free trade agreements on international trade flows using matching econometrics

This paper provides the first cross-section estimates of long-run treatment effects of free trade agreements on members' bilateral international trade flows using (nonparametric) matching econometrics. Our nonparametric cross-section estimates of ex post long-run treatment effects are much more stable across years and have more economically plausible values than corresponding OLS cross-section estimates from typical gravity equations. We provide plausible estimates of the long-run effects of membership in the original European Economic Community (EEC) and the Central American Common Market (CACM) between 1960 and 2000 and the estimates confirm anecdotal reports of these agreements' effectiveness.     

Multilateral stability and efficiency of trade agreements: A network formation approach

We study the endogenous network formation of bilateral and multilateral trade agreements by means of hypergraphs and introduce the equilibrium concept of multilateral stability. We consider multicountry settings with a firm in each country that produces a homogeneous good and competes as a Cournot oligopolist in each market. Under endogenous tariffs, we find that a multilateral trade agreement governing the rules and norms of tariff setting, that is the WTO/GATT regime itself, together with a bilateral preferential trade agreement (PTA) is multilaterally stable. We also find that the existence of the WTO is necessary for the stability of the trading system. We further analyse the impact of PTAs on multilateral tariffs within the WTO. We find that the formation of PTAs increases countries' incentives for multilateral tariff reduction.     

EMU and trade: A PPML re-assessment with intra-national trade flows

This paper examines the EMU effect on trade for the eleven early joiners and Greece relying for the first time on data that include both international and intra-national trade flows, in line with all the microfoundations of the structural gravity model of trade. We find that the overall EMU impact on trade is positive between its members and, specially, for trade between members and non-members. Interestingly, we further show that the effect of the EMU on bilateral trade remarkably differs across countries. For Ireland, Belgium–Luxembourg, Spain, Portugal and Austria, we find robust evidence that EMU has boosted trade both with other members and with third countries, while for Finland, France, Germany, Italy and the Netherlands, the results suggest that only trade with third countries has been enhanced by the EMU. Greece is the only country that shows a negative impact in trade with other EMU members and no effect in trade with non-members. Finally, the results across countries according to the direction of the trade flows (exports versus imports) do not show significant differences in any case.     

International trade and child labor: Cross-country evidence

We explore the relationship between exposure to trade (as measured by openness) and child labor in a cross-country setting. Our methodology accounts for the fact that trade flows are endogenous to child labor (and labor standards more generally) by examining the relationship between child labor and variation in trade based on geography. We find that countries that trade more have less child labor. At the cross-country means, the data suggest an openness elasticity of child labor of − 0.7. For low-income countries, the elasticity of child labor with respect to trade with high-income countries is − 0.9. However, these relationships appear to be largely attributable to the positive association between trade and income. We consistently find a small and statistically insignificant association between openness and child labor when we control for cross-country income differences in the full sample, when we split the sample into different country groups, consider only trade between high- and low-income countries, or focus on exports of unskilled-labor intensive products from low-income countries. Thus, the cross-country data do not substantiate assertions that trade per se plays a significant role in perpetuating the high levels of child labor that pervade low-income countries.     

How trade and investment agreements affect bilateral foreign direct investment: Results from a structural gravity model

We employ a structural gravity approach to analyse the impact of preferential trade agreements (PTAs), bilateral investment treaties (BITs) and other policies on bilateral foreign direct investment (FDI). We use the UNCTAD global database on bilateral FDI stocks and flows. To control for the heterogeneous nature of PTAs, we employ two different indicators of PTA depth. We find that on average signing a PTA increases bilateral FDI stocks by around 30%. Nevertheless, we also find that ‘deeper’ or comprehensive PTAs (e.g., including provisions on investment, public procurement and intellectual property rights provisions) do not have a significantly different impact than signing regular PTAs. Belonging to the EU single market, on the other hand, has a strong impact and increases bilateral FDI by around 135%, and signing a BIT has an effect that is comparable to signing a PTA.     

东盟“10+3”出口与进口效应:基于三维引力模型的研究

本文利用三维引力模型研究了中国、日本、韩国与东盟成员国1998至2007年间的贸易活动。基于对国家异质性的考虑,面板计量方法上的引力模型应该包括出口国效应、进口国效应和商业周期效应三个维度。本文在中日韩-东盟的区域贸易框架下,采用三维引力模型的不同形式,对各成员国的出口效应与进口效应进行估计,从而解释国家特征在该区域贸易中的影响。本文最后测算了中国、日本、韩国对区域内各国的出口潜力,以便为该区域国家贸易政策的制定提供一些指导。     

Do Trade Agreements Stimulate International Trade Differently? Evidence from 296 Trade Agreements

In a seminal article, Rose (2004) found that the assumed positive impact of the WTO on international trade was questionable. This finding has been scrutinised and modified in subsequent research, using different data sets, econometric methods and separating the WTO from other forms of trade agreements. A key characteristic of the subsequent literature is the rather simplistic way in which trade agreements are treated whereby all trade agreements are lumped together. Trade agreements come, however, in many different forms and shapes. This study addresses these differences in trade agreements. Using a unique database of 296 trade agreements, we distinguish 17 trade‐related policy domains and indicate whether the agreements contain legally enforceable commitments. This extensive and novel taxonomy of trade agreements enables us to allow for the possible heterogeneity of the impact of trade agreements on international trade. Using a gravity model, we find that trade agreement heterogeneity indeed matters for international trade and that countries experience significant trade increases due to comprehensive trade agreements even if not all participants are in the WTO.     

The Impact of Sanitary and Phytosanitary Measures on Market Entry and Trade Flows

In an attempt to disentangle the impact of sanitary and phytosanitary (SPS) measures on trade patterns, we use the database on specific trade concerns on SPS measures of the WTO. Estimating various gravity model specifications at the HS4 disaggregated level of trade, we find that aggregated SPS measures constitute obstacles to agricultural and food trade consistently to all exporters. But conditional on market entry, trade flows are positively affected by SPS measures. In addition, we find that SPS measures related to conformity assessment hamper market entry, while SPS measures related to product characteristics increase bilateral trade flows conditional on meeting the standard.     

Why some countries trade more,some trade less,some trade almost nothing: The effect of the governance environment on trade flows

We examine the effect of a country's governance environment on its propensity to trade. Using an updated framework of governance environment, we classify countries based on the dominant mode of governance into three types: (1) rule-based (strong public rule of law), (2) relation-based (weak rule of law and strong informal network based on private relations), and (3) family-based (absence of both public rules and private network). We then examine how different governance types affect trade patterns among 44 countries representing 89% of world trade. We find that overall, rule-based countries trade more than relation-based or family-based countries. A large positive effect on trade flows exists between two highly rule-based countries and between two relation-based countries. Any trade relationship involving a family-based country negatively affects trade flows, even between two family-based countries. Our study contributes to the trade literature by examining the effects of different types of governance environment on trade flows and more successfully explaining why some countries still trade almost nothing even after scholars and policy makers have convincingly proven that freer trade leads to higher welfare for a country.     

The regional trade dynamics of Turkey: a panel data gravity model

This paper analyzes the Turkish export and import flows with regard to regional clusters (RCs) and bilateral trade costs (BTCs) by using a panel data gravity model. We study the role of RCs and BTCs in two complementary parts: in the first part, we use an unbalanced panel data for 180 countries over the period 1960–2012, compiled from the DOTS database. We extend these estimations by running the data at four different time intervals, each representing different economic or political regimes in Turkey. In the second part, we repeat the same exercise at sectoral level for 176 countries over the period 1994–2010, using the BACI database. Aggregate estimates show that the gravity model is very effective in explaining the export and import flows of Turkey and that all close-by regions, including EU27, have a significant impact on trade flows of Turkey. We also find that the EU Customs Union has a negative effect on Turkish exports and a positive effect on imports. Estimates at selected time intervals reinforce aggregate estimates and sectoral level analyses indicate that while some regions contribute positively in all or the majority of sectors, others contribute negatively or produce mixed results.     

The Relationship between Political Tensions,Trade and Capital Flows in ASEAN Plus Three

We estimate the effects of political tension on trade and capital flows in ASEAN Plus Three countries in the framework of a gravity model. We quantify political tension through text‐parsing software reading daily Reuters’ articles from 1990 to 2013 and exclude Brunei and Laos due to sparsity of news coverage. Regarding bilateral trade, we find that political conflict, measured by negative reports in Reuters’ articles, seems to only affect bilateral trade between countries that are not both members of the World Trade Organization (WTO). For these countries, a 1 per cent rise in the tension score results in a 0.05 per cent decline in trade. There is weaker evidence that improvement in bilateral relationship, measured by positive reports in Reuters’ articles, is associated with more trade. As for capital flows, while long‐term capital flows, measured by foreign direct investment, appear to be unaffected by short‐term tensions, both a non‐democratic government and a history of war negatively affect FDI.     

Do WTO members have more liberal trade policy?

This paper uses 68 measures of trade policy and liberalization to ask if membership in the World Trade Organization (WTO) and its predecessor the General Agreement on Tariffs and Trade (GATT) is associated with more liberal trade policy. Almost no measures of trade policy are significantly correlated with GATT/WTO membership. Trade liberalizations, when they occur, usually lag GATT entry by many years, and the GATT/WTO often admits countries that are closed and remain closed for years. The exception to the rule is that WTO members tend to have slightly more freedom as judged by the Heritage Foundation's index.     

The impact of single windows on trade

This paper is the first that quantifies the impact of single windows (SWs) on international trade globally. SWs function as a single point of entry and exit of the goods traded internationally and are therefore intended to facilitate trade. Using a structural gravity model for a panel of 176 countries from 1995 to 2017, we apply a log–log and a Poisson pseudo-maximum-likelihood estimator (PPML) with multidimensional fixed effects to evaluate the extent to which export and import flows vary depending on whether or not countries have operational SWs. The main results from the linearised gravity model suggest that total trade between two countries with functioning SWs increases by about 37%, of which 23 corresponds to exports and 14 to imports. The result from the PPML estimation also indicates a positive and significant effect, which is however much smaller in magnitude.     

Product quality and the direction of trade

A substantial amount of theoretical work predicts that quality plays an important role as a determinant of the global patterns of bilateral trade. This paper develops an empirical framework to estimate the empirical relevance of this prediction. In particular, it identifies the effect of quality operating on the demand side through the relationship between per capita income and aggregate demand for quality. The model yields predictions for bilateral flows at the sectoral level and is estimated using cross-sectional data for bilateral trade among 60 countries in 1995. The empirical results confirm the theoretical prediction: rich countries tend to import relatively more from countries that produce high-quality goods.     

International trade and unemployment: Theory and cross-national evidence

We present a model of trade and search-induced unemployment, where trade results from Heckscher-Ohlin (H-O) and/or Ricardian comparative advantage. Using cross-country data on trade policy, unemployment, and various controls, and controlling for endogeneity and measurement-error problems, we find fairly strong and robust evidence for the Ricardian prediction that unemployment and trade openness are negatively related. This effect dominates the positive H-O effect of trade openness on unemployment for capital-abundant countries, which turns negative for labor-abundant countries. Using panel data, we find an unemployment-increasing short-run impact of trade liberalization, followed by an unemployment-reducing effect leading to the new steady state.