Trade Facilitation and Export Diversification

This paper shows that improved trade facilitation can help promote export diversification in developing countries. We find that 10 per cent reductions in the costs of international transport and domestic exporting costs (documentation, inland transport, port and customs charges) are associated with export diversification gains of 4 and 3 per cent, respectively, in a sample of 118 developing countries. Customs costs play a particularly important role in these results. Lower market entry costs can also promote diversification, but the effect is weaker (1 per cent). We also find evidence that trade facilitation has stronger effects on diversification in poorer countries. Our results are highly robust to estimation using alternative dependent and independent variables, different country samples, and alternative econometric techniques. We link these findings to recent advances in trade theory that emphasise firm heterogeneity, and trade growth at the extensive margin.     

Trade Growth in a Heterogeneous Firm Model: Evidence from South Eastern Europe

In 2007 a free trade area (BFTA) will be created in the Balkans. In this paper we study BFTA‐induced trade growth in the SEE. Given that welfare impacts associated with trade growth depend on the growth channels, more goods and varieties exported or at higher price or more volume of exported goods and varieties, we study the structure of integration‐induced export growth in the Balkans. Given that no firm‐level trade data is available for the Balkans, we adopt the heterogeneous firm framework, which allows to decompose aggregate trade growth into intensive margin of trade and extensive margin of trade using only aggregate trade data. Our empirical findings predict that the BFTA would primarily increase the export volume through a growing number of shipments (the extensive margin of trade) suggesting that the actual welfare gains from the trade growth in the Balkans might in fact be larger than predicted in previous trade studies. We also found that reducing variable trade costs leads to higher export growth rates compared to reducing fixed trade costs by the same percentage.     

Trade barriers and trade flows with product heterogeneity: An application to US motion picture exports

We extend Melitz (2003) to allow for both global and bilateral fixed export costs. If global (bilateral) export costs dominate, the average sales ratio (import sales per product variety/domestic sales per variety), decreases (increases) in variable (fixed) trade barriers, due to adjustment along the intensive (extensive) margin of trade. Using novel data on bilateral US movie exports we find that (i) variation in box-office revenues per movie is much larger than in the number of movies exported, and (ii) the average sales ratio decreases in geographic and linguistic distance. These findings suggest that global fixed export costs dominate.     

Market knowledge: Evidence from importers

Previous firm‐level literature established that there are substantial costs of entry into new export markets. Chaney (The American Economic Review, 104, 2014, 3600) opens the black‐box of entry costs by building a dynamic network model of international trade where firms acquire customers in new destinations through their existing customers in other destinations. Following his conjecture, this paper examines whether firms use their existing suppliers in a destination to find their first clients in those markets. I use a disaggregated data set on Turkish firms' exports and imports for the 2003–08 period, and investigate the effect of import experience on export entry. By identifying import experience using instrumental variables, and shutting down productivity channels with firm‐year fixed effects, I find that having a supplier in the destination country raises the probability of starting to export to that country by 5.5 percentage points on average, revealing a “market knowledge” phenomenon. The paper's main contribution to the literature is finding that firms' country‐specific import experience increases the likelihood of export‐market entry. Digging further to explore heterogeneous effects, I find that this effect does not exist when trading with low‐income countries, but it increases with the destination country's size, proximity, language similarity and the size of its Turkish immigrant community. Moreover, the strength of the firm's relationship with its supplier as proxied by several variables such as the share of imported products that are differentiated increases the probability of export‐market entry.     

Establishment heterogeneity,exporter dynamics,and the effects of trade liberalization

We study the effects of tariffs and iceberg trade costs in a two-sector dynamic variation of the Melitz (2003) model extended to include a sunk cost of exporting, establishment-level uncertainty in productivity, capital accumulation, and material usage. We calibrate the model to match both cross-sectional and dynamic aspects of US producers related to export participation and the establishment lifecycle. We find a tariff equivalent of fixed export costs of 30 percentage points. We also find that a sizeable share of export profits is a return to the organizational capital from investing in export capacity rather than creating an establishment. We use the model to estimate the effect of reducing tariffs on welfare, trade, and export participation. We find that eliminating an 8 percent tariff increases the ratio of trade to GDP from 3.9% to 7.4% and raises welfare by 1.02%. Along the transition, consumption overshoots its steady state, even as trade and the capital stock grow gradually, so that the change in steady state consumption understates the welfare gain. Models without a dynamic export decision generate more gradual aggregate transition dynamics and smaller gains from trade. Capital accumulation and material usage are important sources of the welfare gains to trade.     

Establishment heterogeneity,exporter dynamics,and the effects of trade liberalization

We study the effects of tariffs and iceberg trade costs in a two-sector dynamic variation of the Melitz (2003) model extended to include a sunk cost of exporting, establishment-level uncertainty in productivity, capital accumulation, and material usage. We calibrate the model to match both cross-sectional and dynamic aspects of US producers related to export participation and the establishment lifecycle. We find a tariff equivalent of fixed export costs of 30 percentage points. We also find that a sizeable share of export profits is a return to the organizational capital from investing in export capacity rather than creating an establishment. We use the model to estimate the effect of reducing tariffs on welfare, trade, and export participation. We find that eliminating an 8 percent tariff increases the ratio of trade to GDP from 3.9% to 7.4% and raises welfare by 1.02%. Along the transition, consumption overshoots its steady state, even as trade and the capital stock grow gradually, so that the change in steady state consumption understates the welfare gain. Models without a dynamic export decision generate more gradual aggregate transition dynamics and smaller gains from trade. Capital accumulation and material usage are important sources of the welfare gains to trade.     

Heterogeneous firms,exporter networks and the effect of distance on international trade

Distance effects in gravity equations are high and are not decreasing over time. Given that technical change in transport technology is biased in favor of long distances, this constitutes a challenge for existing theoretical models. In line with recent empirical evidence, this paper introduces a spillover effect from the number of exporters to the fixed costs of exporting into a trade model with heterogeneous firms. Since less firms export to remote markets, the equilibrium fixed costs are increasing in distance. This creates an additional effect of distance on aggregate trade flows: while the intensive margin of trade is unaffected, the extensive margin is magnified. This magnification leads to higher predicted distance effects. In addition, it offers a new perspective on non-decreasing distance effects: a relatively moderate strengthening of the spillover over time is sufficient to generate a constant distance elasticity.     

贸易网络与企业出口动态

本文探讨国际贸易网络对企业出口动态的影响及其作用机制。首先以2000—2016年跨国双边贸易数据为基础构建国别贸易网络指标体系,衡量一国在全球贸易体系中的相对位置,并由此对接中国企业层面出口数据构建企业出口网络指标,再进一步在引力模型中研究企业贸易网络对出口动态的影响。研究发现:将企业贸易网络指标引入到引力模型后,模型对于企业出口动态的解释力更强。企业当期的一阶、二阶和高阶贸易网络指标提高一个单位,会使得企业—市场下期成功出口的概率分别提升4.86%、4.70%和8.93%,出口额分别增加68.55%、65.25%和128.86%,成功存活的概率分别提升5.97%、5.76%和10.90%。在基准回归中加入扩展地理距离项与控制不同层面固定效应后,结果依然稳健。异质性分析表明,中国企业的出口会根据不同层面的目的地网络信息进行调整,网络信息对企业出口动态的影响存在产品异质性。动态分析表明,相较于地理距离,企业贸易网络指标对企业出口动态有着更强的解释力。本文提出了将网络分析方法与计量经济学相结合的新思路,具有一定的学术价值。     

Administrative barriers to trade

We build a model of administrative barriers to trade to understand how they affect trade volumes, shipping decisions and welfare. Because administrative costs are incurred with every shipment, exporters have to decide how to break up total trade into individual shipments. Consumers value frequent shipments, because they enable them to consume close to their preferred dates. Hence per-shipment costs create a welfare loss.We derive a gravity equation in our model and show that administrative costs can be expressed as bilateral ad-valorem trade costs. We estimate the ad-valorem equivalent in Spanish shipment-level export data and find it to be large. A 50% reduction in per-shipment costs is equivalent to a 9 percentage point reduction in tariffs. Our model and estimates help explain why policy makers emphasize trade facilitation and why trade within customs unions is larger than trade within free trade areas.     

Do foreign workers reduce trade barriers? Microeconomic evidence

This paper provides evidence that foreign workers reduce firms’ trade costs and thus increase the probability that firms export. This informs both the literature on trade costs and the microeconomic literature on firms’ export behaviour. We identify the nationality of each worker in a large sample of German establishments and relate this to the exporting behaviour of these establishments. We allow for the possible endogeneity of an establishment's workforce by instrumenting the share of foreign workers with the regional distribution of foreign workers in the wider labour market. We find a significant effect of worker nationality on exporting which is not driven by the industrial, occupational or locational concentration of migrants. The effect is much stronger for senior occupations, who are more likely to have a role in exporting decisions by the establishment. The relationship is also stronger when we consider exports to particular regions and workers from these regions, consistent with a gravity model in which trade flows from country i to j are a function of migrants from j in i.     

South–South Trade and Skill Premia

Contrary to the predictions of the 2 × 2 × 2 Heckscher–Ohlin model, empirical evidence shows that the skill premium increased in some developing countries and decreased in others after trade liberalisation. This paper attempts to reconcile the empirical evidence with the theoretical predictions by introducing a model where South–South trade can produce the observed patterns of skill premia in the South. In this context, South–South trade expands the import range of the country that reduces the tariff. This increases the demand for and the cost of skilled workers in the other country. This also leads the country that reduces the tariff to expand its export range and reduce its import range. Therefore, the country that reduces the tariff experiences an increase in its export range, which leads to an increase in the skill premium. As the impact on the import range is ambiguous, it is possible that the other country experiences a decline in the skill premium. Thus, trade liberalisation between Southern countries can cause an increase in the skill premium in one and a decrease in the skill premium in another.     

Buyer-seller relationships in international trade: Evidence from U.S. States' exports and business-class travel

International trade has become increasingly dependent on the transmission of complex information, often realized via face-to-face communication. This paper provides novel evidence for the importance of in-person business meetings in international trade. Interactions among trade partners entail a fixed cost of trade, but at the same time they generate relationship capital, which adds bilateral specific value to the traded products. Differences in the face-to-face communication intensity of traded goods, bilateral travel costs and foreign market size determine the optimal amount of interaction between trade partners. Using U.S. state level data on international business-class air travel as a measure of in-person business meetings, I find robust evidence that the demand for business-class air travel is directly related to volume and composition of exports in differentiated products. I also find that trade flows in R&D intensive manufactures and goods facing contractual frictions are most dependent on face-to-face meetings. The econometric identification exploits the cross-state variation in bilateral exports and business-class air travelers by foreign country and time period, circumventing any spurious correlation induced by cross-country differences driving aggregate travel and trade patterns.     

Do falling iceberg costs explain recent U.S. export growth?

We study empirically and theoretically the growth of U.S. manufacturing exports from 1987 to 2007. We use plant-level data on exporters' export intensity to identify the changes in iceberg costs over this period. Given this change in iceberg costs, we find that a GE model with heterogeneous establishments and dynamic exporting decision from a sunk cost of starting to export is consistent with both aggregate U.S. export growth and the changes in the number and size of U.S. exporters. The model also captures the gradual response of U.S. exports to the cut in iceberg costs. A model with a static exporting decision generates substantially less trade growth and misses out on the timing of export growth. We also study the interplay between changes in the structure of manufacturing and trade. We find that the growth in trade contributed little to the contraction in U.S. manufacturing while changes in the structure of manufacturing from changes in sectoral productivity, capital intensity, idiosyncratic shocks, and corporate taxation reduced U.S. export growth by as much as 10%.     

Migration of skilled workers and innovation: A European Perspective

We study empirically and theoretically the growth of U.S. manufacturing exports from 1987 to 2007. We use plant-level data on exporters' export intensity to identify the changes in iceberg costs over this period. Given this change in iceberg costs, we find that a GE model with heterogeneous establishments and dynamic exporting decision from a sunk cost of starting to export is consistent with both aggregate U.S. export growth and the changes in the number and size of U.S. exporters. The model also captures the gradual response of U.S. exports to the cut in iceberg costs. A model with a static exporting decision generates substantially less trade growth and misses out on the timing of export growth. We also study the interplay between changes in the structure of manufacturing and trade. We find that the growth in trade contributed little to the contraction in U.S. manufacturing while changes in the structure of manufacturing from changes in sectoral productivity, capital intensity, idiosyncratic shocks, and corporate taxation reduced U.S. export growth by as much as 10%.     

Per capita income,market access costs,and trade volumes

There is strong empirical evidence that countries with lower per capita income tend to have smaller trade volumes even after controlling for aggregate income. Furthermore, poorer countries do not just trade less, but have a lower number of trading partners. In this paper, I construct and estimate a general equilibrium model of trade that captures both these features of the trade data. The key element of the model is an association between trade costs (both variable and fixed) and countries' development levels, which can account for the effect of per capita income on trade volumes and explain many zeros in bilateral trade flows. I find that market access costs play an important role in fitting the model to the data. In a counterfactual analysis, I find that removing the asymmetries in trade costs raises welfare in all countries with an average percentage change equal to 29% and larger gains for smaller and poorer countries. Real income inequality falls by 43%.     

On the conservation of distance in international trade

Using disaggregated bilateral trade data, we find that the elasticity of trade to distance increased (in absolute value) by about 10% since 1985. To explore the reasons for this shift, we decompose the change in the distance elasticity of trade into the part due to a shift in the composition of trade among industries and the part due to a change in the distance sensitivity within industries. We find that adjustment in the composition of trade had little effect, but for 40% of industries distance became more important, with nearly all of the remaining industries showing no significant change. We explore alternative hypotheses as to why the elasticity of trade to distance increased in some industries. We find that homogeneous goods, bulky goods, and high tariff goods became significantly more distance sensitive. In contrast, the evidence implies that changes in tariffs and freight costs have reduced the importance of distance on trade. We conclude that the increase in the importance of distance over time is related to the substitutability of goods and the level of trade costs, but not to changes in tariffs or freight costs.     

基于VAR模型的中国出口导向经济增长假说检验

由于数据结构、计量方法和变量选择的不同,有关ELG(出口导向型增长)假说的研究得出了不同的结论。系统分析FDI、出口贸易和经济增长的关系,将FDI纳入VAR模型中检验ELG假说,结果发现:中国是出口导向型经济增长,每增长1%的出口贸易开放度引发长期经济增长0.83%,出口贸易开放度是影响中国经济增长波动的主要因素,它对经济增长具有递增的促进作用;FDI具有持续提高中国出口贸易度的效应,从而促进中国的长期经济增长,FDI是引发中国出口贸易度提高和经济增长的Granger原因。     

我国旅游服务贸易竞争力的国际比较

本文采取出口市场占有率指数、贸易竞争力优势指数和显示性比较优势指数,比较分析了我国与其他9个旅游服务贸易强国彼此的旅游服务贸易竞争力的状况。结果表明,我国旅游服务贸易有一定的竞争力,但与先进国家相比还有距离,需要进一步采取有效政策措施,加快提升我国旅游服务贸易的国际竞争力。     

The Trade‐Off between Foreign Direct Investments and Exports: The Role of Multiple Dimensions of Distance

To serve foreign markets, firms can either export or set up a local subsidiary through horizontal foreign direct investment (FDI). The conventional proximity–concentration theory suggests that FDI substitutes for trade if distance between countries is large, while exports become more important if scale economies in production are large. This paper investigates empirically the effect of different dimensions of distance on the choice between exports and FDI. We find that different dimensions of distance affect exports and FDI differently. There is clear evidence of a proximity–concentration trade‐off in geographical terms: the share of FDI sales in total foreign sales increases with geographical distance. The positive relation between import tariffs and FDI intensity provides further evidence for a trade‐off resulting from trade costs. On the other hand, the share of FDI decreases with language differences and cultural and institutional barriers. The latter dimensions of distance thus affect FDI more strongly than exports.     

The trade comovement puzzle and the margins of international trade

Countries that trade more with each other tend to have more strongly correlated business cycles. Yet, traditional international business cycle models predict a much weaker link between trade and business cycle comovement. We propose that fluctuations in the number of varieties embedded in trade flows may drive the observed comovement by increasing the correlation among trading partners' aggregate productivity. Our hypothesis is that business cycles should be more strongly correlated between countries that trade a wider variety of goods. We find empirical support for this hypothesis. After decomposing trade into its extensive and intensive margins, we find that the extensive margin explains most of the trade–productivity and trade–output comovement. This result is striking because the extensive margin accounts for only a fourth of the variability in total trade. We then develop a two-country model with heterogeneous firms, endogenous entry, and fixed export costs, in which the aggregate productivity correlation increases with trade in varieties. A numerical exercise shows that our proposed mechanism increases business cycle synchronization compared with the levels predicted by traditional models.