This paper provides a comprehensive development of turnpike theory in a stochastic aggregative model with time-varying nonconvex technology. A new approach to turnpike theorems is developed that exploits the monotonicity of optimal programs and utilizes a supermartingale process generated by...

We study a setting with many countries; in each country there are firms that can sell in the domestic as well as foreign markets. Countries can sign bilateral free-trade agreements that lower import tariffs and thereby facilitate trade. We allow a country to sign any number of bilateral...