The key underlying question of this dissertation is how individuals develop informed views about the open international economy and make informed decisions as consumers, workers and voters. Globalization has generated competing interest groups that are highly informed about its effects. Each of these groups can exploit its informational advantage and strategically provide information to less informed individuals in order to shape their policy preferences and economic and political behavior. Focusing on this informational discrepancy among domestic actors, this dissertation investigates the mechanisms and the effects of information dissemination from three different angles. The first chapter examines the role of product-related information provided by the news media, biased in favor of domestic firms, in shaping consumer behavior. In the second chapter, I examine the role of trade-related information provided by interest groups in altering the trade preferences of workers. In the third chapter, I examine the role of trade-related information provided by political elites in shaping their constituents' attitudes toward trade. These essays contribute to the extant international political economy literature by introducing an actor that has been largely neglected, illuminating new causal mechanisms with information at the center, and clarifying the causal effect of certain economic groups in trade policy preference formation.