Assessing the impact of communication costs on international trade

Communication costs are frequently cited as an important determinant of trade costs. We test this relationship by incorporating alternative measures of communication costs in a model of bilateral trade. We find that international variations in communication costs indeed have a significant influence on trade patterns. Furthermore, estimates using disaggregated data reveal that communication costs are more important for trade in differentiated products than for trade in homogenous products.     

Investment liberalization and international trade

This paper estimates the cross-price elasticity of exports with respect to investment costs for bilateral relations between 36 countries. We show that the effect of reducing foreign direct investment costs on exports depends on country characteristics and trade costs as predicted by the [Markusen, 1997] and [Markusen, 2002] model. When countries differ in relative factor endowments and trade costs are low, investment liberalization stimulates exports, whereas when countries are similar in terms of relative factor endowments and size, and trade costs are moderate to high, investment liberalization reduces exports.     

The effect of the Internet on international trade

We find that the Internet stimulates trade. Evidence from time-series and cross-section regressions shows a significant effect of the Internet on trade in recent years. Our results suggest that a 10 percentage point increase in the growth of web hosts in a country leads to about a 0.2 percentage point increase in export growth. For the average country in our sample, the Internet contributed to about a 1 percentage point increase in annual export growth from 1997 to 1999. We also find evidence of proximity-biased trade growth, i.e. that trade growth is lower for more distant countries, but we do not find evidence that the Internet has directly affected this bias. The evidence is consistent with a model in which the Internet reduces market-specific fixed costs of trade. In particular, we show that an Internet-related reduction in fixed costs is likely to enhance export growth. The model also shows that the Internet does not directly affect the relationship between distance and trade; however, to the extent that competition is enhanced as a result of its development, the Internet will increase the overall effect of distance on trade.     

Interacting factor endowments and trade costs: A multi-country, multi-good approach to trade theory

We provide a synthetic analysis of the different ways in which countries participate in the world economy. Classic trade questions are reconsidered by generalizing a factor-proportions model to multiple countries, multiple goods or multi-stage production, and country-specific trade costs. Each country's production specialization, trade and welfare is determined by the interaction between its relative endowment and its trade costs. We consider the effects of allowing one good to ‘fragment’ into component and assembly production. The volume of trade and welfare levels are higher with fragmentation for most countries, although for many countries these variables fall with fragmentation.     

论高职高专层次国际贸易课的"具体化"教学

高职高专层次的学生学习基础普遍较差,学习能力不足,而国际贸易是一门技术性、实践性很强的应用学科,因此学生普遍感到国际贸易课比较难,"听不懂".究竟怎样才能让学生更好地理解国际贸易相关课程呢?笔者在教学实践中发现,"具体化"教学是一个非常好的选择.本文详细阐述了国际贸易课采用"具体化"教学法的依据及开展"具体化"教学的主要方法.     

Do free trade agreements actually increase members' international trade?

For over 40 years, the gravity equation has been a workhorse for cross-country empirical analyses of international trade flows and — in particular — the effects of free trade agreements (FTAs) on trade flows. However, the gravity equation is subject to the same econometric critique as earlier cross-industry studies of U.S. tariff and nontariff barriers and U.S. multilateral imports: trade policy is not an exogenous variable. We address econometrically the endogeneity of FTAs. Although instrumental-variable and control-function approaches do not adjust for endogeneity well, a panel approach does. Accounting econometrically for the FTA variable's endogeneity yields striking empirical results: the effect of FTAs on trade flows is quintupled. We find that, on average, an FTA approximately doubles two members' bilateral trade after 10 years.     

Economic integration agreements and the margins of international trade

One of the main policy sources of trade–cost changes is the formation of an economic integration agreement (EIA), which potentially affects an importing country's welfare. This paper: (i) provides the first evidence using gravity equations of both intensive and extensive (goods) margins being affected by EIAs employing a panel data set with a large number of country pairs, product categories, and EIAs from 1962 to 2000; (ii) provides the first evidence of the differential (partial) effects of various “types” of EIAs on these intensive and extensive margins of trade; and (iii) finds a novel differential “timing” of the two margins' (partial) effects with intensive-margin effects occurring sooner than extensive-margin effects, consistent with recent theoretical predictions. The results are robust to correcting for potential sample-selection, firm-heterogeneity, and reverse causality biases.     

Anonymous market and group ties in international trade

History provides many examples of cohesive groups dispersed over several countries who exploit the ties between their members to gain entry into foreign markets. The phenomenon is well-established empirically and noteworthy because it suggests the importance of informational barriers in international transactions. We present a simple model where output is produced through a joint venture, and agents have complete information domestically but are unable to judge the quality of their match abroad. A minority of individuals, otherwise identical to all others, can exploit complete information in international matches between group members, if they so choose. Group ties increase aggregate trade and income, but hurt the anonymous market because they deprive it disproportionately of the group’s more productive members.     

The de minimis threshold in international trade: The costs of being too low

With tariffs largely negotiated away, trade facilitation issues such as custom delays and border costs are one of the next key barriers for trade policymakers to address. One important trade facilitation issue is the de minimis threshold (DMT )—a valuation ceiling for imports below which no duty or tax is charged and the clearance procedures are minimal. Customs assessments are costly and low thresholds can hinder trade flows. We offer a detailed analytical approach to assess the direct economic effects of raising the DMT . We focus on Canada, which has one of the lowest DMT s among developed countries. We utilise a unique data set and find that raising Canada's DMT would have positive effects for consumers and businesses, particularly small businesses because the cost saving for smaller entities is disproportionately large. For the government, foregone duty and tax revenues are outweighed by the cost saving, resulting in a fiscally neutral or even positive effect for government revenues.     

Technical regulations and specialization in international trade

It is widely acknowledged that while technical regulations can improve welfare and facilitate markets, they can also impede trade. The trade impeding effects of technical regulations are especially worrisome for developing countries: they frequently lack the human and capital resources necessary to satisfy technical measures, and thus are more likely to be excluded from markets by technical measures. This paper uses highly disaggregated US data on agricultural, mining and manufacturing imports to examine the impact of technical regulations on trade patterns. Using instrumental variables estimation to correct for the potential endogeneity of technical regulations, the analysis suggests that technical regulations substantially impinge on poor countries' exports: their weaker capacities to satisfy technical regulations lead them to specialize away from industries with heavier regulatory burdens.     

Credit constraints, equity market liberalizations and international trade

This paper provides evidence that credit constraints are an important determinant of international trade flows. I exploit shocks to the availability of external finance and examine the impact of equity market liberalizations on the export behavior of 91 countries in the 1980-1997 period. I show that liberalizations increase exports disproportionately more in financially vulnerable sectors that require more outside finance or employ fewer collateralizable assets. This result is not driven by cross-country differences in factor endowments and is independent of simultaneous trade policy reforms. Moreover, it obtains with equal strength in the full panel of countries as well as in both panel and event-study analyses of countries which removed capital controls during the sample period. Finally, the effects of liberalizations are more pronounced in economies with initially less active stock markets, indicating that foreign equity flows may substitute for an underdeveloped domestic financial system. Similarly, opening equity markets has a greater impact in the presence of higher trade costs caused by restrictive trade policies.     

Entry,trade costs,and international business cycles

Are firm entry and fixed exporting costs relevant for understanding the international transmission of business cycles? We revisit this question using a model that includes entry, selection to exporting activity, physical capital accumulation and endogenous labor supply. We determine that once the stochastic process for exogenous productivity is calibrated to consider the endogenous dynamics in TFP created by the number of firms and the time series volatility of entry is calibrated to the data, our model yields minimal departures from the Backus et al. (1992) benchmark. The richer model shares all of the successes of the previous model in terms of the volatilities of aggregate quantities, as well as its failures, in terms of replicating patterns of international co-movement and the volatility of international relative prices.     

Does the internet defy the law of gravity?

We show that gravity holds in the case of digital goods consumed over the Internet that have no trading costs. Therefore trade costs cannot fully account for the effects of distance on trade. In particular, we show that Americans are more likely to visit websites from nearby countries, even controlling for language, income, immigrant stock, etc. Furthermore, we show that this effect only holds for taste-dependent digital products, such as music, games, and pornography. For these, a 1% increase in physical distance reduces website visits by 3.25%. For non-taste-dependent products, such as software, distance has no statistical effect.     

A simple model of firm heterogeneity, international trade, and wages

This paper presents a general equilibrium trade model in which homogeneous firms choose a technology from a set of competing technologies and choose employees from a set of workers of heterogeneous skill. In equilibrium, the interaction between the characteristics of competing technologies, international trade costs, and the availability of workers of heterogeneous skill gives rise to firm heterogeneity. The model generates several of the stylized facts concerning the (apparent) superiority of firms that engage in international trade relative to those that do not and has implications for the effect of international trade on the skill premium and on observed industry-level productivity.     

Product specialization in international trade: A further investigation

In an influential paper, Schott [Schott. Peter K. (2004). “Across-product versus within-product specialization in international trade.” Quarterly Journal of Economics, 119 (2): 647–678] makes two empirical observations about U.S. imports. (1) The United States is increasingly sourcing the same product (however narrowly defined) from both developed and developing countries. That is, ‘across-product specialization’ has been decreasing. (2) The unit values of these multiple-sourced products are positively and significantly correlated with the capital and skill abundance of exporters and with the capital–labor ratios used by exporters. That is, endowments-driven ‘within-product specialization’ has been increasing. We show that both these observations extend to the imports of Brazil, India and Japan. However, our main finding is that observation (1) is largely driven by two factors. First, China is the dominant low-wage exporter of multiple-sourced products. Second, the most developed countries remain the primary exporters of multiple-sourced products. The U.S. case is the most extreme of our four importers: When China is deleted from the U.S. import data there is no trend in across-product specialization and rich exporters are increasing their trade share of multiple-sourced products. Since deleting China has no theoretical justification, these results must be viewed not as a contradiction of Schott's work but as a way of deepening our understanding of his empirical results.     

Paying a visit: The Dalai Lama effect on international trade

Is political compliance a precondition for healthy trade relations with China? The Chinese government frequently threatens that meetings between its trading partners' officials and the Dalai Lama will be met with animosity and ultimately harm trade ties. We run a gravity model of exports to China from 159 partner countries between 1991 and 2008 to test the extent to which bilateral tensions affect trade with autocratic China. In particular, we empirically investigate whether countries that receive the Dalai Lama despite China's opposition experience a significant reduction in their exports to China. In order to account for the potential endogeneity of meetings with the Dalai Lama, the number of Tibet Support Groups and the travel pattern of the Tibetan leader are used as instruments. Our empirical results support the idea that countries officially receiving the Dalai Lama at the highest political level are punished through a reduction of their exports to China. However, this ‘Dalai Lama Effect’ is only observed for the Hu Jintao era and not for earlier periods. Furthermore, we find that this effect is mainly driven by reduced exports of machinery and transport equipment and that it disappears in the second year after a meeting took place.     

重要商品的对外贸易风险成本初探

对外贸易风险成本主要是由于国家或企业在贸易中的不适宜行为而引起的相关成本。它不仅仅局限于进出口贸易中的某些行业和产品,而且涉及到各个行业和各种产品。本文以煤炭和石油为例,分析了净出口品与净进口品的对外贸易风险成本问题,以及我国现阶段重要商品对外贸易风险成本的主要表现形式。     

Firm heterogeneity and international trade in services

This study, using panel data on Japanese firms, analyses the relationship between services trade and firm heterogeneity. It finds that the number of firms engaged in services trade is far less than that engaged in goods trade. Further, the productivity of services traders is higher than that of domestic firms and goods trading firms, whereas the productivity of firms that export services beyond the boundary of their firm groups is higher than that of those that export services only to their affiliate firms. These results suggest that only productive firms can engage in services trade by incurring the relatively large fixed costs.     

Sanitary and phytosanitary measures in international trade: policy considerations vs. economic reasoning

Sanitary and phytosanitary (SPS) measures are one form of non‐tariff international trade barrier with the objective of requiring consumer and intermediate goods to be safe and to provide information to protect consumers from deceptive practices. However, such barriers could severely restrict trade. The central strategy of the World Trade Organization's (WTO) SPS Agreement is to use science to distinguish between those SPS measures consistent with the Agreement and those in violation of the Agreement. SPS measures belong to what is known as trans‐science questions or questions which can be asked of science and yet which cannot be answered by science. Because of the presence of scientific uncertainty, science policies adopted by members should be identified by the WTO. WTO panels should not, however, establish scientific policies. Prohibitive measures would seem rather incompatible with the role the WTO assumed trying to promote free trade. Rather, facilitating the distribution of available information regarding SPS and food safety risk, or a lack of it, to consumers in importing countries would help them to make better informed decisions according to their own preferences and risk aversion.     

The interplay of international trade,economic growth and income convergence: a brief intellectual history of recent developments

The literature on the interplay of international trade, economic growth, and income convergence across economies has proliferated in the past few decades. The present essay reviews the theoretical advancements and empirical findings in this literature. The focus will be on recent developments with a few glances at the past. The essay also describes new findings and insights into the role of international trade in global income distribution. Ideas for further research are offered throughout the essay.