Version 1 of the Mirror Trade Database, covering the years 1950-2014. It contains two databases: one for dyadic (bilateral) trade, and one for monadic (country-level) trade. The databases enable researchers to adjust statistical analyses of international trade flows for mirror trade asymmetries. For all trading relationships, the dyadic database provides two mirror observations of all recorded flows, as well as a quality-weighted average of the two. We recommend checking the robustness of trade-related analyses at…