Pro-trade nationalists and protectionist xenophobes? The conditional effects of psychological factors on trade attitudes

To what extent do psychological factors determine individuals' support for trade? Previous studies find that predispositions such as nationalism, patriotism, xenophobia, and isolationism predict opposition to imports. However, it is unclear whether this relationship holds when trade is framed in ways other than imports and for international institutions (IIs) governing trade between countries. In this study, I use a cross-national dataset to test whether the relationship between psychological factors and trade/II attitudes is conditional on the frame used (imports vs. consumer choice vs. neutral), the dimension of trade (principle of free trade vs. IIs governing trade), and the level of political integration of trade-related IIs (deep vs. shallow). Controlling for self-interest factors and other covariates, I find that, while xenophobia consistently predicts protectionism regardless of the frame and dimension, and patriotism mostly predicts trade/II support, the effect of nationalism and isolationism highly depends on the frame used. Moreover, the negative effect of xenophobia and isolationism on support for trade-related IIs increases as they become deeper. The findings in this study call for a greater exploration on how the interaction between elite framing and psychological predispositions affects attitudes towards trade and other globalization issues.