Estimating the effects of non‐discriminatory trade policies within structural gravity models

We propose a simple method to identify the effects of unilateral and non‐discriminatory trade policies on bilateral trade within a theoretically consistent empirical gravity model. Specifically, we argue that structural gravity estimations should be performed with data that include not only international trade flows but also intra‐national trade flows. The use of intra‐national sales allows identification of the effects of non‐discriminatory trade policies such as most favoured nation tariffs, even in the presence of exporter and importer fixed effects. A byproduct of our approach is that it can be used to recover estimates of the trade elasticity, a key parameter for quantitative trade models. We demonstrate the effectiveness of our techniques in the case of most favoured nation tariffs and “time to export” as representative non‐discriminatory determinants of trade on the importer and on the exporter side, respectively. Our methods can be extended to quantify the impact on trade of any country‐specific characteristics as well as any non‐trade policies.     

GATT/WTO Promotes Trade Strongly: Sample Selection and Model Specification

Some recent empirical studies examine the impact of the GATT/WTO on trade. This paper investigates the sample selection bias and the gravity model specification issues in the literature. First, the GATT/WTO not only makes existing trading partners trade more at the intensive margin, but also creates new trading relationships at the extensive margin. Most existing papers exclude zero trade observations and hence ignore the extensive margin. Secondly, due to the violation of some maintained assumptions, the traditional log-linear gravity regressions fail to uncover the role of the GATT/WTO even at the intensive margin. Using a large bilateral panel dataset including zero trade flows and a more appropriate econometric method, this paper finds that the GATT/WTO has been very effective in promoting world trade at both the intensive and extensive margins.     

Political Proximity and International Trade

The impact of politics on international trade has often been excluded by economists both from theoretical and empirical analysis. In this study, we examine empirically the impact of politics on trade flows. Results indicate that political differences have an impact on bilateral trade that is robust to a wide range of econometric specifications. However, the impact of political differences on trade flows vanishes when the costs of reducing the latter become fairly important.     

THE IMPACT OF TRADE AND INVESTMENT AGREEMENTS ON AUSTRALIA'S INWARD FDI FLOWS

International trade and investment agreements are one of the primary instruments of global financial liberalisation. They are enacted to enhance the flows of foreign direct investment (FDI) between signatories by reducing regulatory barriers to investment; promoting stable host investment environments; and guaranteeing investors against non‐commercial risk. As a net capital importer, Australia has sought to attract FDI through participation in such accords since the early 1980s. This paper examines the determinants of Australia's inward FDI flows—focussing specifically on the effects of trade and investment agreements. Using panel data, we find that both bilateral trade and bilateral and multilateral investment agreements attract FDI flows into Australia, thereby indicating that the policy of enticing FDI through participation in these accords is quite possibly effective.     

Exchange rate uncertainty and US bilateral fresh fruit and fresh vegetable trade: an application of the gravity model

In order to analyse the effect of exchange rate uncertainty, we apply an empirical gravity equation to two sets of US bilateral trade data: fresh fruit over the period 1976–1999 for a panel of 26 countries; and fresh vegetables over the period 1976–2006 for a panel of nine countries. Based on panel estimation methods, and using both a moving SD measure and the Perée and Steinherr (1989) measure of exchange rate uncertainty, the results show that US bilateral fresh fruit trade has been negatively affected by exchange rate uncertainty. We also find some evidence that the exchange rate between the US dollar and the currencies of Latin American trading partners accounts for most of the negative impact of exchange rate uncertainty on bilateral trade flows in fresh fruit. In contrast, when using panel estimation methods and both measures of exchange rate uncertainty, we find no statistically significant evidence for any negative effect of exchange rate uncertainty on US bilateral fresh vegetable trade. However, we do find a statistically significant negative effect for exchange rate uncertainty when we estimate a US export gravity equation for fresh vegetables using the same panel of countries.     

Does Trade Integration Contribute to Peace?

We investigate the effect of trade integration on interstate military conflict. Our empirical analysis, based on a large panel data set of 243,225 country‐pair observations from 1950 to 2000, confirms that an increase in bilateral trade interdependence significantly promotes peace. It also suggests that the peace‐promotion effect of bilateral trade integration is significantly higher for contiguous countries that are likely to experience more conflict. More importantly, we find that not only bilateral trade but global trade openness also significantly promotes peace. It shows, however, that an increase in global trade openness reduces the probability of interstate conflict more for countries far apart from each other than it does for countries sharing borders. The main finding of the peace‐promotion effect of bilateral and global trade integration holds robust when controlling for the simultaneous determination of trade and peace.     

Aggregravity: estimating gravity models from aggregate data

This article considers alternative methods to estimate econometric models based on bilateral data when only aggregate information on the dependent variable is available. Such methods can be used to obtain an indication of the sign and magnitude of bilateral model parameters and, more importantly, to decompose aggregate into bilateral data, which can then be used as proxy variables in further empirical analyses. We perform a Monte Carlo study and carry out a simple real world application using intra-EU trade and capital flows, showing that the methods considered work reasonably well and are worthwhile being considered in the absence of bilateral data.     

DOES THE GRAVITY MODEL EXPLAIN SOUTH KOREA'S TRADE FLOWS?*

This paper applies the gravity model to explain South Korea's bilateral trade flows and to extract practical trade policy applications. A trade structure and an Asian‐Pacific trade network are included in the gravity equation to characterize the peculiarity of South Korea's trade patterns. The empirical result shows that South Korea's trade follows a Heckscher–Ohlin model more than an increasing returns or a product differentiation model. South Korea has large unrealized trade potentials with Japan and China, suggesting that they are desirable partners for an FTA. North–South Korean trade will expand markedly if bilateral relation normalizes and North Korea participates in APEC.     

TESTING CATCHING‐UP BETWEEN THE DEVELOPING COUNTRIES: “GROWTH RESISTANCE” AND SOMETIMES “GROWTH TRAGEDY”

This paper provides empirical evidence that there is no convergence between the GDP per‐capita of the developing countries since 1950. Relying upon recent econometric methodologies (non‐stationary long‐memory models, wavelet models and time‐varying factor representation models), we show that the transition paths to long‐run growth (the catch‐up dynamics) are very persistent over time and non‐stationary, thereby yielding a variety of potential steady states (conditional convergence). Our findings do not support the idea according to which the developing countries share a common factor (such as technology) that eliminates per‐capita output divergence in the very long run. Instead, we conclude that growth is an idiosyncratic phenomenon that yields different forms of transitional economic performance: growth tragedy (some countries with an initial low level of per‐capita income diverge from the richest ones), growth resistance (with many countries experiencing a low speed of growth convergence), and rapid convergence.     

Linder Revisited: Trade and Development in the Spanish Economy

The literature has tended to treat Linder’s hypothesis with excessive simplicity given the absence of any formalization for this intuitive theory on trade potential in manufacturers, closely related to the intra‐industry trade paradigm. Against this background, in this paper we first propose a complete empirical model of bilateral trade containing all the determinants suggested by Linder, with special emphasis being placed on non‐homothetic preferences, national income distribution, international economic convergence and geographic distance. We then test the model in an appropriate case, namely that of Spain during the period of its economic transition running from approximately 1959 to 1986. This period was characterized by increasing openness and structural change, as well as by convergence until that country’s integration into the then European Economic Community. The results confirm the importance of the characteristics of internal demand, essentially of income distribution and non‐homothetic preferences. We find that trade horizons delimited by bilateral proximity in development and geographical distance, together with multilateral convergence in economic development are the main indicators for selecting trade partners as markets and suppliers, thereby reinforcing the idea that foreign markets can be considered as an extension of the national market.     

A REVISIT TO THE STATIONARITY OF OECD INFLATION: EVIDENCE FROM PANEL UNIT‐ROOT TESTS AND THE COVARIATE POINT OPTIMAL TEST*

This paper re‐examines the stationarity of inflation rates in 19 Organisation for Economic Cooperation and Development countries with the use of cross‐sectional information. We employ the panel unit‐root tests that allow for cross‐sectional dependency and the covariate point optimal test. These tests have high power in common due to the exploitation of cross‐sectional information, and they can assist mutually to draw a concrete conclusion on inflation dynamics for all series in the panel. Our empirical results show that allowing for cross‐sectional dependency rejects the null hypothesis that all series in the panel have a unit root, implying that there is at least one stationary series in the panel. With the help of the results of the covariate test, we can distinguish the panel into a group of stationary and a group of non‐stationary series. For robustness, the two groups of series are re‐confirmed by the panel tests. Our results reveal evidence of mean reversion in inflation for 15 of 19 countries, which is significantly stronger as compared to that obtained by the state‐of‐the‐art univariate unit‐root tests.     

Trade, democracy, and the gravity equation

Does democracy affect trade? There are several channels by which democracy may affect trade, with differing implications. First, democratization in the exporting country can improve product quality and reduce trade costs, increasing bilateral trade. Second, democratization in the importing country may increase trade barriers and thus reduce imports. In this paper, I analyze the effect of democracy on trade by augmenting the gravity equation with democracy. Using a rich panel data set and controlling for the endogeneity of democracy, I find empirical evidence consistent with the hypothesis that democracy fosters trade. This finding is robust to various econometric methods and to the use of disaggregated specifications.     

Estimating the impact of country‐level policy restrictions on services trade

Standard techniques used to estimate gravity equations, rely on bilateral variation to identify the effect of trade barriers on bilateral trade flows. In this paper, I develop a method that estimates the effects of country‐level variables on trade between countries in the presence of firm heterogeneity and country selection into trade, a natural extension of existing empirical models of international trade. I implement the method in services data, where available measures of trade policy provide information on the average level of regulations restricting entry into a country. The results suggest that policy barriers are important determinants of services trade flows.     

基于月度数据的FDI与安徽外贸发展关系实证研究

本文运用计量模型从外贸竞争力、贸易流量和贸易方式等三个方面考察了2003年1月到2009年6月间安徽省吸引外商直接投资与安徽外贸发展变化间的相互关系。结果表明,在样本区间内,FD I对安徽外贸竞争力变化的解释能力有限,而对机电产品出口贸易和加工贸易影响最大。短期外资变动反映在加工贸易出口和高新技术产品出口的变化上最为迅速,FD I与加工贸易出口互为格兰杰因果关系。     

International migration and trade agreements: The new role of PTAs

This paper provides an empirical analysis of the relationship between preferential trade agreements (PTAs) and bilateral migration flows. Building on the empirical literature on the determinants of migration flows, I estimate a modified gravity model to assess the role of PTAs and their content on bilateral migration flows. Using a sample of 29 OECD destination countries over the period 1998–2008, I show a strong positive effect of PTAs on bilateral migration flows. I find that the content of PTAs also matters: when visa‐and‐asylum and labour market related provisions are included in PTAs, this further stimulates bilateral migration flows. Different estimation strategies, including instrumental variables, are employed to address the potential endogeneity bias problems related to PTAs and their content.     

Trade frictions and welfare in the gravity model: how much of the iceberg melts?

Abstract.  A key element missing from the structural gravity literature is an examination of the implied general equilibrium. By design the gravity equation is adept at predicting bilateral trade flows. To make inferences beyond trade flows, however, the theoretic models should be consistent with other observables. Structural econometric estimates from Anderson and van Wincoop (2003) allow us to evaluate their proposed general equilibrium along several dimensions. We find that their gravity model predicts too large a difference between consumer and producer prices; excessive variation in the geographic distribution of consumer price indices; and an exceptionally large portion of output devoted to overcoming trade frictions. Under plausible parameterizations of the model at least 50% of output 'melts' in transit. JEL classification: F10     

Exchange rate volatility and US commodity trade with the rest of the world

Exchange rate volatility is argued to affect the trade flows negatively and positively. Indeed, empirical studies that have addressed the issue have supported both effects. These studies have used aggregate trade flows data either between one country and the rest of the world or between two countries at the bilateral level. Studies that have disaggregated trade data by industry are rare. Thus, we extend the literature by looking at the experiences of 66 American industries that trade with the rest of the world using monthly data. In most cases, trade flows are not affected by GARCH‐based volatility of the real effective exchange rate of the dollar.     

Intra-industry Trade and Innovation: An empirical study of the Colombian manufacturing industry

This paper analyses the theoretical and empirical relationship between intra-industry trade (IIT) flows in manufactures and technical change for the Colombian manufacturing industry during the 1970-95 period. A general estimating equation for the sources of change of the equilibrium number of varieties, in which TFP growth is one of its components, is derived from the basic model of trade in differentiated goods with monopolistic competition. Based on that relationship, several estimations on the determinants of IIT flows are carried out. The econometric set up follows a panel data and cross-section estimations of system of simultaneous equations. TFP and IIT indices are the endogenous variables of the system with industry characteristic, trade policy, and innovation-activity variables as the set of exogenous variables. The paper also presents a comparative analysis in the direction and trends of Colombia's IIT flows in manufactures with the Group of Seven, NAFTA, and the Latin American Free Trade area members (LAFTA) since 1974.     

A generalized design for bilateral trade flow models

This paper suggests a full interaction effects design to analyze bilateral trade flows. This is illustrated with an unbalanced panel of bilateral trade between the triad (EU15, USA and Japan) economies and their 57 most important trading partners over the period 1986–1997. Our full interaction model finds empirical support for the New Trade Theory and Linder’s hypothesis. We show that the omission of one or more interaction effects can result in biased estimates and misleading inference.     

THE TIME‐SERIES PROPERTIES OF UK INFLATION: EVIDENCE FROM AGGREGATE AND DISAGGREGATE DATA

This paper contrasts the time‐series properties of aggregate and disaggregate UK inflation. While aggregate inflation is found to be non‐stationary, unit root rejection frequencies are increasing when we use more disaggregate data. Structural break analysis suggests that structural shifts in monetary policy could alter inflation persistence. Additionally, panel evidence indicates that the unit root hypothesis can be rejected for sectoral inflation rates. Finally, we compare the persistence properties of UK inflation, finding statistically significant differences between aggregate and disaggregate series. Our analysis suggests that aggregation matters, which has important implications for econometric analysis and the conduct of monetary policy.