firms, and multiple asymmetric regions. Wages, productivity, consumption diversity, and markups across firms and markets are … by the Canada-US border. We find that Canadian average labor productivity increases by 8.03%, whereas US average labor … productivity rises by just 1.02%. Consumers' exposure to market power falls sizably by up to 12.11% in the Canadian provinces, and …

The world is replete with spatial frictions. Shipping goods across cities entails trade frictions. Commuting within …-size distribution? Do they affect individual city sizes? Do they contribute to the productivity advantage of large cities and the …