Externality problems hinder solutions to existential threats, including climate change and mass extinction. To avert environmental crises, policymakers seek mechanisms that align private incentives with societal exigencies. Successful solutions bring individuals to internalize the broad...

The Dojima Rice Market in Osaka was the first futures market in the world, and an influential role model for modern futures markets. This study examines the efficiency of the original futures market by applying time‐series analysis to data on futures prices from Japan's Tokugawa era...