Across countries and over time, support for economic globalization is strongest among individuals with the highest levels of education. Yet despite long-lasting debates on the sources of this correlation, reliable evidence that isolates the causal effect of education from the nonrandom selection of individuals into education is lacking. To address this fundamental issue, I exploit compulsory-schooling reforms that increased the minimum school-leaving age in eighteen countries. Employing a fuzzy regression discontinuity design, I find that the reform-induced added years of education substantially and durably increased support for trade liberalization. And using new data on the content of school curricula, I find that the effect of schooling largely stems from instilling tolerance and pluralism in citizens and reducing the perceived cultural threat of globalization. In contrast, there is little evidence that the effect of schooling reflects the distributive consequences of international trade, separating globalization winners and losers.

Globalization creates winners and losers, and recent research emphasizes that large corporations are among the biggest beneficiaries of trade while smaller firms may be harmed. How do these redistributive effects impact trade attitudes? Because a growing share of Americans hold highly unfavourable views of big corporations, we argue that the belief that large firms win from trade will provoke hostility towards trade and globalization. To test this theory, we show experimentally that informing people that large corporations benefit from trade makes them markedly more hostile towards trade compared to a treatment emphasizing that firms in exporting industries benefit. Using subgroup and mediation analysis, we find that anti-corporate sentiment drives this effect, particularly concern about corporations’ power in society. Our findings illustrate how distributive consequences and attitudes towards the winners and losers from policy change interact to shape public opinion on economic policy.

Why are highly educated people more supportive of international trade? Two competing explanations exist for this empirical finding. On the one hand, the economic interest approach suggests that the highly educated realize that trade can benefit them economically. On the other hand, the ideational perspective argues that this relationship arises because highly educated people are more cosmopolitan, and cosmopolitanism is positively related to support for trade. To contribute to this debate on the education–trade attitude nexus, we present and empirically test four hypotheses. Using data from the PEW Global Attitudes survey (2014) for 36 countries at various levels of development, we find that as expected by the economic interest approach, the effect of education on people's perceptions of the consequences of trade is conditional on respondents’ individual and subnational economic context. The results thus show that economic interest at least partly explains education's effects on public opinion towards trade. Beyond adding to this specific debate, the research note makes several broader contributions to research on trade and public opinion.

What explains divides in the public’s support for trade protection? Traditional economic arguments primarily focus on individuals’ expectations for increased or decreased wages in the face of greater economic openness, yet studies testing such wage-based concerns identify a different divide as well: even after accounting for wage effects, women are typically more supportive of trade protection. We argue that trade-induced employment volatility and the resulting concerns for employment stability are overlooked factors that help explain the gender divide in attitudes. Due to both structural discrimination and societal norms, we theorize that working women are more responsive to the threat of trade-related employment instability than male counterparts. Using an experiment fielded on national samples in the USA and Canada, we find that most respondents have weak reactions to volatility, but volatility has a significant effect on women who are the most vulnerable to trade’s disruptive effects – those working in import-competing industries and those with limited education.

Did the American public become more protectionist during the Great Recession of 2007–09? If so, why? During this period, many observers expressed concern that rising unemployment would stimulate protectionist pressures. The results of this study indicate that although increased unemployment did not affect the trade preferences of most Americans, individuals working in import-competing industries who lost their jobs during the Great Recession did grow more hostile to trade. However, even greater hostility to trade stemmed from a variety of non-material factors. Increasing ethnocentrism and opposition to involvement in world affairs between 2007 and 2009 help account for growing antipathy toward trade. But most importantly, increasing anxiety that foreign commerce would harm people in the future, even if it had not done so thus far, contributed to mounting opposition to trade among the American public.