This paper develops a framework to study empirically the relationship between trade policy and individual income risk and to evaluate the associated welfare consequences. The analysis proceeds in three steps. First, longitudinal data on workers are used to estimate time-varying individual income risk parameters in various manufacturing sectors. Second, the estimated income risk parameters and data on trade barriers are used to analyze the relationship between trade policy and income risk. Finally, a simple dynamic incomplete-market model is used to assess the corresponding welfare costs. In the implementation of this methodology using Mexican data, we find that trade policy changes have a significant short-run effect on income risk. Further, while the tariff level has an insignificant mean effect, it nevertheless changes the degree to which macroeconomic shocks affect income risk.

In popular discussion, much has been made of the susceptibility of government policies to lobbying by foreigners—the general presumption being that this is harmful to the home economy. However, in a trade policy context this may not be the case. If the policy outcome absent any foreign lobbying is characterized by welfare-reducing trade barriers, foreign lobbying may reduce such barriers and possibly raise welfare. Using a new data set on foreign political activity in the United States, this paper investigates this question empirically. Tariffs and nontariff barriers are both found to be negatively related with foreign lobbying activity.