Trade policy, firm entry and welfare

该项目旨在量化全球关税削减对国际贸易量、企业进入和消费者福利的影响。关税在全球范围内大幅下降。该项目将把国际贸易理论纳入一个包括几乎所有国家在内的简约的国际贸易数量模型中。该项目还将汇编一个关于关税壁垒的全面国际数据库。该项目预计将完善关于降低关税对企业进入市场的影响的国际贸易理论；估计实际的多边和优惠关税降低的影响；创建一个评估贸易和产业政策的工具；以及传播国际关税数据库。

This project aims to quantify the effects of global tariff cuts on international trade volumes, firm entry and consumer welfare. Tariffs have fallen significantly globally. The project will incorporate international-trade theory into a parsimonious quantitative model of international trade including almost all countries. The project will also compile a comprehensive international database on tariff barriers. The project expects to refine international trade theory on the effects of tariff reductions on firm entry into markets; estimate the effects of actual multilateral and preferential tariff reductions; create a tool for evaluating trade and industrial policy; and disseminate international tariff databases.