Structurally estimating the Grossman and Helpman (1994) model using coverage ratios that include non-tariff barriers leads to biased parameter estimates. We develop a "protection for sale" theoretical framework consistent with the data, by explicitly allowing for non-tariff barriers. Introducing...

We use disaggregated data on trade flows, production, and trade barriers for 41 countries in 1988 to examine the political and economic determinants of non-tariff barriers, as well as the impact of protection (both tariff and non-tariff) on trade flows. We use an econometric framework that...

This paper surveys and critiques various methods of measuring nontariff trade measures (NTMs) for the purpose of determining which seem most promising for facilitating the process of reducing the trade-distorting effects of such policies through multilateral negotiations. Four measurement...

This paper documents a new fact, then analyzes its causes and consequences: in most countries, import tariffs and non-tariff barriers are substantially lower on dirty than on clean industries, where an industry's "dirtiness" is defined as its carbon dioxide (CO2) emissions per dollar of output....

Until the beginning of this century, the GATT/WTO system worked. Economic research provided a compelling explanation. It showed that if governments maximize the well-being of their own countries broadly defined, GATT/WTO principles would facilitate mutually beneficial cooperation over their...

We consider the design and implementation of international trade agreements when: (i) negotiations are undertaken and commitments made in the presence of uncertainty about future political pressures; (ii) governments possess private information about political pressures at the time that the...

What does economics have to say about the design of international trade agreements? We review a literature on this question, providing detailed coverage on three key design features of the GATT/WTO: reciprocity, nondiscrimination as embodied in the MFN principle, and tariff bindings and binding...

How high were import tariffs when GATT participants began negotiations to reduce them in 1947? Establishing this starting point is key to determining how successful the GATT has been in bringing down trade barriers. If the average tariff level was about 40 percent, as commonly reported, the...