the distance between non-residential parents and their children to proxy for contact, and measuring educational … outcomes are better for children who live farther away from their non-residential parent, but that distance is not related to …

This paper examines the interactive effect of distance and trade on international conflict and cooperation. The effect … of geographic distance depends on trade, while the effect of trade varies with geographic distance. Trade reduces …

distance-related migration costs cannot explain the lower distance sensitivity of educated and risk-loving individuals. …