An alternative consideration for the testing procedure of the S-curve hypothesis

Backus et al. (Am Econ Rev 84:84–103, 1994) introduced a new theoretical interpretation of the short-run relationship between the terms of trade and the trade balance: movements in net exports and the tendency for the trade balance to be negatively correlated with current and future movements in the terms of trade, but positively correlated with past movements. There have been several papers aimed at testing the S-curve hypothesis in the related literature. The most common empirical approach used in those papers is the cross-correlation analysis. This paper highlights several deficiencies of the cross-correlation analysis when being used directly to test for the validity of the mentioned hypothesis. The purpose of this paper is to offer an alternative approach so as to combine the causality theory in econometrics with the testing procedure of the S-curve hypothesis via the cross-correlations. The paper’s empirical results reveal that disaggregated bilateral trade data between the United States and China almost never support the S-curve hypothesis, contrarily to a previous paper employing the same data, but utilizing the conventional cross-correlation analysis. Why this difference may have appeared is also discussed.     

The J-curve in the emerging economies of Eastern Europe

Devaluation or depreciation of a currency worsens the trade balance before improving it, resulting in a J-curve pattern. A new definition of the hypothesis implies a short-run deterioration combined with the long-run improvement. By using monthly data over the January 1990–June 2005 period from 11 east European emerging economies, most of which are the new European Union (EU) members or the EU candidate countries, this article uses the bounds testing approach to cointegration and error-correction modelling and finds empirical support for the J-curve hypothesis in three countries of Bulgaria, Croatia and Russia. The results have important implications for policymakers involved in economics in terms of using exchange rate policy as a policy device to achieve real convergence toward EU standards.     

Asymmetric J-curve: evidence from industry trade between U.S. and U.K.

ABSTRACT

Previous research that assessed the impact of exchange rate changes on the trade balance between the U.S. and U.K. assumed the effects are symmetric. In this paper, we add to the literature on the asymmetric J-curve phenomenon by considering the trade balance of 68 two-digit industries that trade between the two countries. We find short-run asymmetric effects of the real dollar-pound rate in almost all industries. However, short-run asymmetric effects were translated into significant long-run asymmetric effects in 25 industries. Indeed, the asymmetric J-curve hypothesis was supported in 18 industries.     

Trade, regulations, and income

We examine the relationship between openness and per-capita income using cross-country data from 126 countries. We find that trade leads to a higher standard of living in flexible economies, but not in rigid economies. Business regulation, especially on firm entry, is more important than financial development, higher education, or rule of law as a complementary policy to trade liberalization. Specifically, after controlling for the standard determinants of per-capita income, our results imply that a 1% increase in trade is associated with more than a one-half percent rise in per-capita income in economies that facilitate firm entry, but has no positive income effects in more rigid economies. The findings are consistent with Schumpeterian “creative destruction”, which highlights the importance of new business entry in economic performance, and with previous firm-level studies showing that the beneficial effects of trade liberalization come largely from an intra-sectoral reallocation of resources.     

Testing J-curve hypothesis and analysing the effect of exchange rate volatility on the balance of trade in India

This study estimates the balance of trade model similar to Rose (1991) to test the J-curve hypothesis and analyse the effect of conditional exchange rate volatility on the balance of trade in India. The model is estimated on quarterly data from 1975:02 to 1996:03 and the exchange rate is measured alternatively in terms of the trade and export weighted real effective exchange rate. The model variables are tied together in a long run equilibrium relationship. The study does not find any evidence for the presence of the J-curve effect in the balance of trade. The study finds the presence of weak ARCH but strong GARCH effects in the exchange rate series. But this exchange rate volatility does not play any significant role in affecting the balance of trade in India.Jel classification: F31, F32, F40, F41I am grateful to Dr. Glenn Otto of the University of New South Wales, Sydney, Australia for his valuable comments and incisive suggestions which helped to improve the paper substantially. I am also gratefull to an anonymous Referee and Editor, Baldev Raj, of the Journal for giving very useful suggestions. However, I am solely responsible for any error and omission that may remain in the paper. The views expressed in the article are my personal views and not of the institution Iam associated with.First version received: October 2000/Final version received: October 2002     

S-Curve at the industry level: evidence from US–UK commodity trade

Backus et al. in (Am Econ Rev 84(1): 84–103, 1994) found that the cross-correlation function between terms of trade and trade balance resembles the letter S and labeled it the S-curve. Support for S-curve is rather weak in some cases, most notably US when aggregate trade data are used. Empirical regularities based on aggregate trade data may suffer from a potential bias stemming from aggregation. Indeed, by employing US bilateral trade data excellent support for the S-curve is recovered. The support, however, was rather weak at the level of US–UK bilateral trade. Suspecting aggregation bias again, we employ US–UK trade data at the industry level and find overwhelming support for the S-curve. Furthermore, commodity attributes play no role. Valuable comments of an anonymous referee are greatly appreciated. Any error, however, is ours.     

Does devaluation improve trade balance in small island economies? The case of Fiji

A number of countries, mostly small and island economies manage fixed exchange and often devalue it as a stabilisation strategy. The current paper investigates the effectiveness of devaluation in improving trade balance with reference to Fiji. A small island economy has limited exportable and hence highly depends on imports for both consumption and production purposes. A devaluation, therefore, inflates domestic price and appreciates the real exchange immediately by raising importable consumption and discouraging imports used in domestic production. The paper applies various econometric models for empirical investigation of its impact and transmission mechanism. Strong long-run relationship found between real exchange rate and trade balance explains that appreciation of currency has been responsible for the rising trade deficit in the economy. Moreover, the devaluation did not demonstrate J-curve phenomenon. The effect of devaluation strongly contributed to the domestic inflation has been while quite weak on stimulating aggregate demand.     

The cost of adjustment: On comovement between the trade balance and the terms of trade

The S-shaped cross-correlation function between the trade balance and the terms of trade has been documented for several countries and time frames. The ability of two-country, two-good business cycle models to reproduce this regularity hinges on the dynamics of capital formation. We consider the consequences of modeling the adjustment costs for comovement in the trade balance and the terms of trade. Both complete and incomplete market models with capital adjustment costs à la Hayashi (1982) deliver the S-curve seen in the data while the model with investment adjustment costs à la Christiano et al. (2005) does not.     

Heckscher-Ohlin Theory or the Modern Trade Theory: How the Overall Trade Characterizes at the Global Level?

This paper has two objectives: to locate the global trade pattern and to compute the export potential of world economies. Considering the maximum number of countries and maintaining a good representative sample of the overall international trade, an empirical examination is conducted by utilizing the trade complementary index and the per-capita income variable in the standard gravity model. The main aim is to determine which of the two theoretical frameworks―either the Heckscher-Ohlin theory, which is based on factor endowments or the Modern Trade theory of Krugman-Helpman and Linder, based on the intra-industry trade―is explaining the overall global trade flows. The estimated results support the factor endowments trade theory. In other words, the observed trade patterns conform to the Heckscher-Ohlin theory of trade over intra-industry Modern trade theories. The inference drawn is based on the significantly positive coefficient of the trade complementarity index and the absolute differenced PCI variable. Furthermore, as far as export potential is concerned, there exists a vast scope for the export potential across economies. These countries can exploit the existing export potential through trade cooperation and integration at the regional and the bilateral level.

     

人民币升值能改变中国的贸易顺差吗

本文使用非线性平滑转换模型研究了人民币升值对我国贸易顺差的动态影响,研究发现在样本时期内非线性模型能更好地拟合两者的动态关系,在非线性条件下,当期人民币升值将会使贸易顺差增加,前两期人民币升值将会导致当期贸易顺差减少,人民币升值对贸易顺差的影响表现出很强的非线性门限特征。人民币汇率对贸易差额影响的时间路径像是一个"倒J-曲线"。2000年以来人民币汇率虽然一直在发挥着降低贸易顺差的作用,但是,人民币汇率不是贸易顺差形成的主要原因。     

Is Devaluation Working? Evidence from India in Phase of Economic Liberalization

Using the data from a developing country like India, we offer an empirical analysis to examine the relationship between devaluation of the Rupee and the real trade balance with her major trading partners since the liberalization process that began in July 1991. Exploiting the recent advances in panel-data time-series econometrics, we document that devaluation may not be effective in improving trade balance in the long run. Success may follow only if the policymakers view devaluation as a short run tool to improve the trade balance. Nominal devaluation is unable to alter real exchange rates substantially and hence, the inflationary impact of devaluation is large in India.

     

Bilateral J-curve between the UK vis-à-vis her major trading partners

Currency depreciation is said to worsen the trade balance first before resulting in an improvement, yielding a short-run pattern labelled the J-curve phenomenon. While early studies tested the J-curve by using aggregate trade data, a few recent studies have employed bilateral data, mostly between the US and her major trading partners. In this paper we extend the literature by considering the experience of the UK. We test the phenomenon between the UK and her twenty major trading partners by employing data over 1973Q1–2001Q3 period. In most instances, we find no support for the J-curve in the short-run. In the long run, only in five cases has the exchange rate had significant impact on the bilateral trade balance.     

Trade facilitation and country size

It is argued that compared with large countries, small countries rely more on trade and therefore are more likely to adopt liberal trading policies. The present paper extends this idea beyond the conventional trade openness measures by analyzing the relationship between country size and the number of documents required to export and import, a measure of trade facilitation. Three important results follow. First, trade facilitation does improve as country size becomes smaller; that is, small countries perform better than large countries in terms of trade facilitation. Second, the relationship between country size and trade facilitation is nonlinear, much stronger for the relatively small than the large countries. Third, contrary to what existing studies might suggest, the relationship between country size and trade facilitation does not appear to be driven by the fact that small countries trade more as a proportion of their gross domestic product than the large countries.     

Impacts of RMB devaluation on China’s trade balances: a time-varying SVAR approach

ABSTRACT

In this article, I empirically examine time-varying effects of real renminbi (RMB) devaluation on China’s trade balances. To this end, I estimate a time-varying structural vector autoregression model with monthly data. Results demonstrated that effects of real RMB devaluation on China’s trade balances are time varying. In a few months after devaluation of RMB, trade balances worsen as predicted in J-curve theory in most sample periods. However, subsequent improvements of trade balances predicted in J-curve theory appear only in certain periods, particularly in 2000s. Finally, devaluation of RMB positively affects China’s GDP and OECD industrial production, although the size of effects varies across sample periods. Joining WTO, the global financial crisis and endogenous feedbacks induced by price effects seem to be important to understand these time-varying patterns.     

The J-curve: evidence from commodity trade between US and China

In testing the short-run (J-curve effect) and the long-run effects of currency depreciation on the trade balance many researchers have used either trade data between one country and the rest of the world or between one country and another trading partner. Both groups are said to suffer from aggregation bias. To reduce the bias, in this article we consider trade data between one country (the US) and her trading partner (China) disaggregated by commodity. We use imports and exports of 88 industries (2-digit and 3-digit classifications) and cointegration analysis to show that the trade balance of at least 34 of the industries react favourably to real depreciation of the dollar. The J-curve effect is detected in 22 industries. Furthermore, most of these industries that are sensitive to currency depreciation are durable commodity groupings.     

The J-curve: Malaysia versus her major trading partners

Currency depreciation is said to worsen the trade balance before improving it, hence the J-curve phenomenon. Since introduction of cointegration and error-correction modelling, researchers have tried to distinguish the short-run effects of currency depreciation from its long-run effects. A few studies that have investigated the experience of Malaysia, have relied upon aggregate trade data and have found no strong support for a significant relation between the real value of the ringgit and the Malaysian trade balance. In this article, we disaggregate the data by country and consider Malaysia's bilateral trade balance with her 14 largest trading partners. Using bound testing approach to cointegration and error-correction modelling, we provide some support for the J-curve hypothesis.     

Cross-Border Pollution,Terms of Trade,and Welfare

We construct a two-good general equilibrium model of international trade for two small open economies where pollution from production is transmitted across borders. Governments in both countries impose emission taxes non-cooperatively. Within this framework, we examine the effect of changes in the degree of cross-border pollution on Nash emission taxes, emission levels and welfare. We do so under two scenarios: when changes in cross-border pollution do not affect domestic pollution (non-strategic) and when they do (strategic). We also examine the effect of changes in international terms of trade on pollution and welfare when cross-border pollution is non-strategic.      

Choice of currency basket weights and its implications on trade balance

This paper seeks to find an optimal choice of currency basket weights for emerging economies that peg their currencies to a currency basket, and to examine the long-run relationship between the real exchange rates of a group of trading partners. A general equilibrium model is set up to establish an optimal set of currency basket weights, coupled with the choice of fiscal policy, to simultaneously stabilize trade balance and aggregate price level of an economy. This optimal set of weights is a weighted average of two sets of weights; each targets at one policy goal (stabilizing either balance of trade or aggregate price level) at a time. Empirical studies including vector autoregression (VAR) analysis and cointegration analysis on the long-run relationship between the Thai baht and the real exchange rates of its major trading partners are presented.     

Public Debt,Terms of Trade and Welfare: The Role of Capital Production Shares,External Balances,and Dynamic (In)efficiency

In view of still large external imbalances across the world economy and dramatically risen public debts in major advanced economies, this paper reconsiders the relationship between public debt, the terms of trade and welfare in a two-good, two-country overlapping generations model with technological differences across countries. We find that the terms of trade effect of a public debt shock depends only on international differences in capital production shares and the dynamic (in)efficiency of the world economy. As in a model with similar capital production shares, domestic welfare rises and foreign welfare decreases when Home has a positive external balance and the Golden Rule holds. Under dynamic efficiency, welfare decreases in the debt-expanding, net foreign creditor country if she has a relatively smaller capital production share, and if the welfare effect through the accumulation channel is negative. In contrast, under dynamic inefficiency she can increase her welfare by debt expansion.     

Trade integration and risk sharing

What are the effects of increased trade in goods and services on the trade balance? We study the effects of reducing transport costs in a Ricardian model with complete asset markets and find that this increases the volatility of the trade balance. This result applies regardless of whether supply or demand shocks are the main source of economic fluctuations. Both type of shocks generate fluctuations in the trade balance that are in part moderated by stabilizing movements in the terms of trade. Trade integration dampens these terms of trade movements and, for a given distribution of shocks, amplifies fluctuations in the trade balance. To overturn this result, one must assume that either trade integration is sufficiently biased towards goods with strong comparative advantage and/or risk aversion is sufficiently extreme. We calibrate the model to U.S. data and find that, for reasonable parameter values, increased trade in services could double the volatility of the trade balance.