美国对华贸易技术壁垒的政治经济学分析

技术贸易壁垒已成为中美贸易摩擦的最主要原因之一。本文拓展了格罗斯曼和海普曼的关税模型．对美国对华贸易技术壁垒进行政治经济学分析，指出贸易技术壁垒是美国政府与相关利益集团博弈的结果，其存在具有必然性和长期性，进而提出对我国政府、企业、行业协会的政策建议。     

Simulated economic impacts in applied trade modelling: A comparison of tariff aggregation approaches

This paper assesses the performance of two recently developed tariff aggregators in reducing tariff aggregation bias by analysing Swiss beef market liberalisation scenarios. Specific relevant sources of bias are addressed: substitution effects on import demand, Tariff Rate Quotas and overprotection in tariffs. The aggregators are linked to a global large-scale partial equilibrium model and benchmarked against a standard aggregator. The choice of the aggregation method shows considerable effects on simulated economic impacts, specifically if the dispersion in tariffs or tariff cuts is large. A large bias is revealed in simulated gains from trade liberalisation using the standard aggregator. The impacts on traded quantities are found to be overestimated, while price and welfare effects can be higher or lower by switching to alternative aggregation methods. By reducing aggregation bias and depicting negotiated tariff schedules more directly, the proposed aggregators enhance the contribution of trade modelling to evidence-based policy making.     

世贸组织框架下我国主要对外贸易税收政策研究

对外贸易税收区别于其他税收的最基本之处在于其开征课税对象仅限于参与国际贸易的商品和服务。通过深入分析关税、出口退税、反倾销税三大贸易税收政策的主要功能在内、外部因素的影响下发生的变化,针对我国三大贸易税收当前亟待解决的问题,提出了具体的策略对策。     

Reducing tariff evasion: The role of trade facilitation

Can simplifying customs procedures reduce tariff evasion? We measure tariff evasion as the mis-representation of import values in response to increasing tariffs. In a dataset covering 121 countries and the whole set of HS6 product categories in 2012, 2015, and 2017, we show that simplifying border procedures, that is trade facilitation, reduces tariff evasion. Holding tariff rate constant at its mean, improving a country’s overall trade facilitation performance from the 25th percentile to the median reduces tariff evasion by almost 20%. The moderating effect is especially due to improving the pre-shipment legal certainty of customs procedures. Among the potential mechanisms, improving trade facilitation performance is effective in reducing tariff evasion due to under-reporting of import prices, as well as in countries with weaker control of corruption. The results suggest that countries can gradually implement trade facilitation reforms to cost-effectively minimize tariff evasion.     

Strategic tariffs, tariff jumping, and heterogeneous firms

The majority of research to date investigating strategic tariffs in the presence of multinationals finds a knife-edge result where, in equilibrium, all foreign firms are either multinationals or exporters. Utilizing a model of heterogeneous firms, we find equilibria in which both pure exporters and multinationals coexist. We utilize this model to study the case of endogenously chosen tariffs. As is standard, Nash equilibrium tariffs are higher than the socially optimal tariffs. Unlike existing models with homogeneous firms, we find that non-cooperative tariffs promote the existence of low-productivity firms relative to the socially optimal tariffs. This highlights a new source of inefficiency from tariff competition not found in models of homogeneous firms. In addition, we find that in many cases the Nash equilibrium tariff when FDI is a potential firm structure is lower than when it is not. As a result, FDI improves welfare by mitigating tariff competition.     

跨越反倾销税的外国直接投资研究述评

征收反倾销税的目的是保护国内产业免受倾销的损害,但外国厂商通过直接投资方式跨越反倾销税壁垒,降低甚至消除了反倾销税对国内产业的保护效果,对东道国贸易与投资政策提出挑战。本文对国外关于反倾销税的外国直接投资效应、跨越反倾销税的外国直接投资对东道国国内企业的影响以及东道国政府的政策选择等方面的研究作简要述评。     

Impact of the 2014 Suspension Agreement on sugar between the United States and Mexico

In December 2014, the U.S. and Mexico agreed to a suspension agreement that set a $22.25/cwt import price floor on U.S. sugar imports from Mexico. A partial equilibrium trade model was developed to estimate the economic impact the agreement would have had if it had been in effect from 2008 to 2014. In years when the price floor would have been binding, on average, U.S. producers would have gained $138 million and Mexican producers would have lost $218 million. However, total Mexican welfare would have actually increased by $11.5 million. Furthermore, the average price floor that would have maximized total Mexican welfare over that period is $22.76/cwt. Also, under certain supply and demand elasticity conditions, the average price floor that would have maximized joint U.S. and Mexican producer welfare over that period is $21.91/cwt. The latter two estimates are both close to the actual price floor agreed to in the 2014 Suspension Agreement.     

国内税的关税替代效应分析

关税的作用机制在于造成了产品在国外和国内的价格差异,从而产生保护国内生产商的经济效果。如果能够区分国内和国外的生产商,实施不同的国内税政策,国内税的运用同样可以造成相应的保护效果,因此,国内税在某种程度上也可以看作是贸易政策。     

我国工业部门关税保护的动因结构、效应和优化——基于新政治经济学的经验分析

在关税减让方面,我国已经从2001年14.77%的平均水平降到了2005年底的9.9%①,实际上超前完成了入世承诺的内容.本文通过对我国入世过渡期工业部门关税从水平向结构改革的过程中,关税变动的复杂利益驱动结构效应的研究及其经验研究,厘清了关税改革的理论与实践依据,并对进一步的关税结构优化提出若干建议.     

对外开放程度度量方法的研究综述

从贸易方面度量开放程度的指标有外贸依存度、关税率、有效保护率和数量限制平均覆盖率、非关税壁垒覆盖率、价格扭曲度等。从金融角度来研究开放的指标有外汇黑市溢价、本国对外投资和吸收外资的流量、存量、增长率以及它们占GDP的比重等。有些学者运用计量方法测算选定指标的理论预测值,通过比较实际值与理论预测值的差异来度量开放程度。国内学者一般选择3至6个分指标的加权平均值来度量我国经济的对外开放程度。