The authors investigate several existing political economy hypotheses on trade policy using cross-country trade-protection data for non-agricultural goods. The authors find that a left-leaning political regime leads to pro-labor trade policies only for a subset of trade policy measures. In addition, they find that income inequality and country-level corruption appear to be important determinants of trade policy. For various measures of trade protection, it appears that corruption tends to hurt labor interests by increasing trade protection in labor-abundant countries and reducing trade protection in capital-abundant countries. This finding suggests that corruption, among other factors, may move trade policy away from the desires of the median voter.