Optimal Environmental Taxation with Capital Mobility*

Climate policy exemptions for energy‐intensive sectors are often justified with distributional concerns. One concern is that households employed in energy‐intensive sectors might be affected disproportionally because of (international) capital mobility. By assuming that workers cannot move freely between sectors, we can reproduce this concern: uniform climate policy causes more inequality between the sectors when capital is mobile than when it is not. However, we find that affected households can be relieved more effectively with sector‐specific labour taxes than with sector‐specific climate policy. The reason for this finding is that households benefit more directly from sector‐specific labour tax cuts than from climate policy exemptions. Keeping climate policy uniform across sectors has the added benefit of creating incentives for long‐term decarbonisation. In addition, we find that the differential effect of capital mobility depends on the government's degree of inequality aversion – redistribution is more expensive when capital is mobile.     

Foreign banks and trade

Exploiting unique, time-varying, bilateral data on bank ownership for many countries, we show that exports tend to be larger when a foreign bank from the importing country is present. Entry of a foreign bank also boosts export growth to the home country of the foreign bank relative to other countries, especially when foreign bank presence in the country is large and bilateral cross-border lending low. We find supportive evidence that foreign banks facilitate trade by reducing financial frictions for firms. Entry spurs exports to the foreign bank's home country especially in sectors more dependent on external finance, and particularly so in countries less economically and financially developed and with a higher share of foreign banks. Imports of external finance dependent sectors also grow more after entry, but less so than exports do. Exit of a foreign bank does not fully eliminate the beneficial effects of prior foreign bank presence on exports.     

Trade matters except to war neighbors: The international stock market reaction to 2022 Russia’s invasion of Ukraine

We investigate the role of international trade and proximity to war in international stock markets during the invasion of Ukraine by employing DiD designs and panel data comprising 70 stock markets. We find that differences in trade exposure to warring countries (trade effect) have a substantial and negative impact on non-European equity markets but are irrelevant for European markets. In contrast, differences in the distance to warring countries (proximity effect) have a significant and negative impact on European markets but have no bearing on non-European markets. We find that the relevance of rent from mineral, natural gas, and oil resources and the relevance of metals, ores, and fuels in exports operate as mitigators of the trade effect. Our paper provides valuable empirical evidence regarding the importance of mitigating the vulnerability of financial markets to international trade when a major war breaks out.     

Stock price reactions to earnings announcements: evidence from Chinese markets

We examine the stock price reactions to changes in earnings per share (EPS) in the Chinese stock markets. We find that domestic A-share investors do not correctly anticipate the changes in earnings and fail to adjust new earnngs information quickly, but international B-share investors can predict earnings changes better than A-share investors. As a result, abnormal returns (ARs) can be obtained by trading on the earnings information, but for A shares only. An explanation is that most A-share holders are individuals with short-term investment horizon while most B-share holders are large institutions that trade on more detailed and accurate financial information not immediately available to A-share holders.     

Are Chinese trade flows different?

We find that Chinese trade flows respond to economic activity and relative prices – as represented by a trade weighted exchange rate – but the relationships are not always precisely or robustly estimated. Chinese exports are generally well-behaved, rising with foreign GDP and decreasing as the Chinese renminbi (RMB) appreciates. However, the estimated income elasticity is sensitive to the treatment of time trends. Estimates of aggregate imports are more problematic. In many cases, Chinese aggregate imports actually rise in response to an RMB depreciation and decline with Chinese GDP. This is true even after accounting for the fact a substantial share of imports are subsequently incorporated into Chinese exports. We find that some of these counter-intuitive results are mitigated when we disaggregate the trade flows by customs type, commodity type, and the type of firm undertaking the transactions. However, for imports, we only obtain more reasonable estimates of elasticities when we allow for different import intensities for different components of aggregate demand (specifically, consumption vs. investment) or when we include a relative productivity variable.     

Trade wedges,inventories, and international business cycles

The large, persistent fluctuations in international trade that cannot be explained in standard models by changes in expenditures and relative prices are often attributed to trade wedges. We show that these trade wedges can reflect the decisions of importers to change their inventory holdings. We find that a two-country model of international business cycles with an inventory management decision can generate trade flows and wedges consistent with the data. Moreover, matching trade flows alters the international transmission of business cycles. Specifically, real net exports become countercyclical and consumption is less correlated across countries than in standard models. We also show that ignoring inventories as a source of trade wedges substantially overstates the role of trade wedges in business cycle fluctuations.     

Cross-country evidence on the value of corporate industrial and international diversification

We provide evidence on the value of industrial and international diversification for more than 3000 firms from Germany, the U.K., and the U.S. Consistent with prior studies, we find that industrial diversification reduces firm value in the U.K. and the U.S. Furthermore, similar to the recent findings of Denis et al. [J. Finance 57 (2002)], we find that U.S. multinationals trade at a discount relative to firms operating only in the domestic market. This result is robust to different benchmarks used to measure the value of diversification. By contrast, we find that international diversification has no effect on the value of firms headquartered in either Germany or the U.K.     

Trade costs, firms and productivity

This paper examines the response of U.S. manufacturing industries and plants to changes in trade costs using a unique new dataset on industry-level tariff and transportation rates. Our results lend support to recent heterogeneous-firm models of international trade that predict a reallocation of economic activity towards high-productivity firms as trade costs fall. We find that industries experiencing relatively large declines in trade costs exhibit relatively strong productivity growth. We also find that low-productivity plants in industries with falling trade costs are more likely to die; that relatively high-productivity non-exporters are more likely to start exporting in response to falling trade costs; and that existing exporters increase their shipments abroad as trade costs fall. Finally, we provide evidence of productivity growth within firms in response to decreases in industry-level trade costs.     

Historical evidence on the finance-trade-growth nexus

We study linkages between financial development, international trade, and long-run growth using data since 1880 for 17 now-developed “Atlantic” economies and a set of cross country and dynamic panel data models. We find that finance and trade reinforce each other in data before 1930, but that these effects do not persist after the Second World War. Financial development affects growth positively throughout the sample period, while trade affects growth strongly and independently after 1945. We attribute the rising importance of trade to major post-World War II changes in tariffs and quantity restrictions associated with the GATT, the establishment of the European Common Market, and the gradual elimination of capital controls after 1973. The findings are robust to the use of ‘deep’ fundamentals such as legal origin and indicators of the political environment as instruments for financial development and trade. Financial development, however, links more closely than trade to these fundamentals.     

Income shifting and U.S. international trade in goods statistics

Intrafirm trade represents greater than one-third of total U.S. international trade in goods. Since these are not arm’s-length transactions, trade policymakers have voiced concerns that income shifting may distort international trade in goods statistics through the manipulation of transfer prices. Using country-level data on intrafirm exports and imports, we estimate a path analysis that simultaneously tests how and to what extent tax-motivated transfer pricing and real investment decisions affect intrafirm trade in goods statistics. Contrary to speculation, we do not find an economically significant relation between transfer pricing and intrafirm trade in goods statistics. In contrast, we find that tax-motivated location decisions create a 21 (20) percent or $819.7 ($927.1) million difference in mean intrafirm exports (imports) between the U.S. and a low- and high-tax country. This study provides trade policymakers with relevant information about the extent to which real investment decisions and accounting manipulations affect intrafirm trade in goods statistics and contributes to the international trade and income shifting literatures.     

Optimal domestic regulation under asymmetric information and international trade: a simple general equilibrium approach

We investigate the design of domestic incentive regulations in a small economy opened to trade and its implications for international specialization and for trade openness to remain welfare‐improving. More specifically, we append to an otherwise standard 2 × 2 Heckscher‐Ohlin model of a small open economy a continuum of intermediate sectors producing nontradable goods used in tradable sectors. Those goods are produced by privately informed regulated firms. Asymmetric information induces distortions with general equilibrium impacts. The small economy becomes relatively richer in the informationally sensitive factor so that asymmetric information might reverse trade patterns. Free trade is Pareto‐dominated by autarky when it exacerbates agency distortions.     

Market Reaction to Multiple Contemporaneous Earnings Signals: Earnings Announcements and Future Earnings Guidance

We examine market reactions to contemporaneous announcements of current earnings and future earnings guidance for evidence on how investors trade off relevance and reliability. Current earnings are more reliable than future earnings guidance, but future earnings guidance may be more relevant for predicting future performance. We find that current earnings are more strongly associated with announcement-period returns than concurrently disclosed future earnings guidance, consistent with investors’ relative preference for reliability. We find similar return reactions to stand-alone earnings and to earnings released with guidance. In contrast, return reactions are lower for guidance announced simultaneously with current earnings than for stand-alone guidance.     

Impacts of China's Accession to the World Trade Organization

This article presents estimates of the impact of China's accessionto the World Trade Organization. China is estimated to be thebiggest beneficiary (US$31 billion a year from trade reformsin preparation for accession and additional gains of $10 billiona year from reforms after accession), followed by its majortrading partners that also undertake liberalization, includingthe economies in North America, Western Europe, and Taiwan (China).Accession will boost manufacturing sectors in China, especiallytextiles and apparel, which will benefit directly from the removalof export quotas. Developing economies competing with Chinain third markets may suffer small losses. Accession will haveimportant distributional consequences for China, with the wagesof skilled and unskilled nonfarm workers rising in real termsand relative to those of farm workers. Possible policy changes,including reductions in barriers to labor mobility and improvementsin rural education, could more than offset these negative impactsand facilitate the development of China's economy.     

贸易开放对金融发展的影响分析

本文通过建立一个金融发展与产业结构密切相关的理论模型,认为当发达国家和发展中国家同时开放贸易时,发达国家的金融依赖型部门增长,并且带来金融体系的完善。相反,发展中国家的金融依赖型部门萎缩,外部融资需求减少,最终导致金融体系的退化。在实证研究中采用了47个样本国家贸易开放和金融发展的数据,结果与理论预测基本一致:贸易开放促进发达国家金融发展水平的同时,对发展中国家的金融发展产生了负面影响。     

服务贸易开放、市场化改革与中国制造业企业生产率

本文首先构建了一个微观企业生产理论框架,从理论上分析了在考虑国内产品替代效应的情况下,贸易开放如何影响下游制造业企业生产率,以及国内市场化程度对贸易开放政策效果的调节效应。其次,我们利用中国工业企业数据库和世界银行的服务贸易限制指数,实证检验了服务贸易开放对中国制造业企业生产率的影响。结果发现,服务贸易开放显著促进了我国制造业出口强度较大的企业的生产率提高,对出口强度较小的企业的促进作用不明显,并抑制了非出口企业生产率的提升;国内市场化水平提高能够增强服务贸易开放对出口企业生产率的促进作用,减弱服务贸易开放对非出口企业造成的负面冲击。此外,我们还发现:(1)市场化主要通过商业存在(FDI)渠道调节服务贸易政策效果;(2)服务贸易开放对国企以及非东部地区中的出口企业生产率的促进效应更为显著,而对非国企以及东部地区的非出口企业的不利冲击更大。在考虑内生性以及使用替换变量等检验后,结果仍然稳健。因此,当前阶段中国服务贸易政策需要同时兼顾出口企业与非出口企业,并协调国内市场化改革,稳中有序开放。     

Stock returns’ sensitivities to crisis shocks: Evidence from developed and emerging markets

We consider three “crisis shocks” related to key features of the 2007–2008 crisis, for emerging and developed economies: (1) the collapse of global trade, (2) the contraction of credit supply, and (3) selling pressure on firms’ equity. Using an international cross-section of firms, we find that returns’ sensitivities to these shocks imply large and statistically significant influences on residual equity returns during the crisis period (after controlling for normal risk factors that are associated with expected returns). Similar analysis for several placebo periods shows that these effects are generally less severe or absent in non-crisis periods. Relative to developed economies, emerging markets are more responsive to global trade conditions (in crisis and in placebo periods), but less responsive to selling pressures. An analysis of portfolios of firms during various placebo periods indicates that investors are not compensated for the risks associated with the crisis shocks. Finally, a month-by-month analysis of returns during the crisis period shows that the time variation of the importance of each of the sensitivities to shocks tracks related changes in the global economic environment.     

Peer influence on trade credit

We examine the influence of peer firms on trade credit policies of listed firms in the United States. We posit and find evidence that firms mimic their peers in formulating trade credit policies. The findings are more pronounced for firms that operate in highly competitive product markets and an uncertain information environment. Our results show that firms not only mimic peers in similar circumstances but also imitate their more and less successful peers. We find that the benefits of mimicking peers' trade credit policies increase initially, but for firms that already maintain high levels of trade credit, these benefits diminish faster as the intensity of mimicking increases. Our results are robust to different methods of selecting peers, sampling, different proxies, and estimation techniques.     

National versus international mergers in unionized oligopoly

We analyze how the presence of trade unions affects the pattern of mergers in an international oligopoly and the welfare implications thereof. We find that wages for the merger participants are always lower when they merge internationally, rather than nationally. Using a model of endogenous merger formation, we find that the firms will merge internationally in equilibrium. There are more international mergers than socially preferred, unless products are close substitutes. A “national champion” policy of promoting domestic mergers rather than international ones is nevertheless never optimal.     

The 2008 financial crisis: Stock market contagion and its determinants

In this paper, we investigate worldwide contagion and its determinants during the 2008 financial crisis. Utilizing an international sample of returns from 2003 to 2009, we consider both uni- and bi-directional contagion. After controlling for crisis-related volatility, we find strong evidence that cross-market linkages increase among many financial markets. In contrast to previous crises, contagion following the 2008 global financial crisis is not confined to emerging markets. The United States and other mature financial markets in the sample transmit and receive contagion. Country markets are less influenced by regions than they are by other country markets. We also construct variables that represent relative changes in economic variables before and during the crisis. We find that both economic fundamentals such as trade structure, interest rates, inflation rates, industrial production, and regional effects, and investors’ risk aversion contribute to international contagion.     

Adjustment patterns to commodity terms of trade shocks: The role of exchange rate and international reserves policies

We analyze the way in which Latin American countries have adjusted to commodity terms of trade (CTOT) shocks in the 1970–2007 period. Specifically, we investigate the degree to which the active management of international reserves and exchange rates impacted the transmission of international price shocks to real exchange rates. We find that active reserve management not only lowers the short run impact of CTOT shocks significantly, but also affects the long run adjustment of REER, effectively lowering its volatility. We also show that relatively small increases in the average holdings of reserves by Latin American economies (to levels still well below other emerging regions current averages) would provide a policy tool as effective as a fixed exchange rate regime in insulating the economy from CTOT shocks. Reserve management could be an effective alternative to fiscal or currency policies for relatively trade closed countries and economies with relatively poor institutions or high government debt. Finally, we analyze the effects of active use of reserve accumulation aimed at smoothing REERs. The result support the view that “leaning against the wind” is potent, but more effective when intervening to support weak currencies rather than intervening to slow down the pace of real appreciation. The active reserve management reduces substantially REER volatility.