Global Supply Chains, Not Tariffs, Shape Firms' Trade Preferences

Why This Question Matters

Trade agreements have expanded beyond tariffs to include investment rules, flexibility clauses, and dispute settlement mechanisms. Understanding which features firms actually care about is crucial for designing agreements and for who lobbies whom during negotiations. In Song Kim, Helen Milner, Thomas Bernauer, Iain Osgood, Gabriele Spilker, and Dustin Tingley’s study in ISQ, the authors investigate how firms’ international footprints shape priorities over these multiple policy dimensions.

What the Authors Ask

Do firms prioritize traditional trade instruments like tariffs and subsidies, or do newer provisions—investment protection, flexibility of commitments, and dispute settlement—matter more? How do a firm’s multinational status and position in global value chains (GVCs) predict its rankings of these policy features?

How the Research Works

The authors develop a firm-level theoretical framework linking firms’ international operations to expected policy preferences. They then run a conjoint experiment with firms in Costa Rica to measure tradeoffs firms make across multiple policy attributes simultaneously. This experimental design allows the researchers to estimate the relative importance of different trade-policy dimensions while holding other attributes constant.

Key Findings

• Tariffs and subsidies are often not the top concerns for many firm types in the sample; traditional trade instruments have lost relative salience.
• A firm’s degree of integration in global value chains is a strong predictor of its policy preferences: involvement in GVCs reshapes which features matter most.
• Multinational corporations place the highest value on protection for foreign investments.
• Exporters that are not central nodes in supply networks tend to prioritize robust dispute settlement procedures.
• Preference variation is more pronounced across individual firms than across industries, challenging literature that emphasizes inter-industry cleavage lines.

Implications for Trade Politics

These results suggest that policymakers and negotiators should consider firms’ positional roles in global production networks—not just industry membership—when anticipating interest-group pressures and designing trade agreements. The study highlights how modern trade politics may center on investment rules and legal mechanisms rather than tariff reductions alone, and it underscores the importance of firm-level measurement for modeling political coalitions over trade policy.