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α: calibrated so average coauthorship-adjusted count equals average raw count
We study the international trade effects of bilateral investment treaties (BITs) and compare them to those of regional trade agreements (RTAs). We find that a BIT increases bilateral international trade flows by similar amounts as an RTA if the RTA contains an investment chapter. BITs have larger international trade effects than RTAs without an investment chapter. Results are robust to controlling for the effects of unilateral investment laws. They imply that evaluations of trade and investment agreements should also consider investment regulation.