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α: calibrated so average coauthorship-adjusted count equals average raw count
Using the change in the real effective exchange rate (REER) to reflect trade competitiveness, we examine its role in the cross-section of global equity returns. The changes in REER negatively affect stock market returns. The REER effect is robust after controlling for known risk factors and market characteristics. Furthermore, it remains pervasive across different periods and subsamples. Our findings support the conventional wisdom that appreciating currency harms trade values, consequently dampening a firm's stock market performance.