This paper addresses the spatial evolution of countries accounting for economics, geography and (military) force. Economic activity is spatially distributed following the AK model with the output being split into consumption, investment, transport costs and military (for defense and expansion)....

Interactions between Economy and Climate: Climate Change and Technical Progress: Impact of Informational Constraints -- Environmental Policy in a Dynamic Model with Heterogeneous Agents and Voting -- Optimal Environmental Policy in the Presence of Multiple Equilibria and Reversible Hysteresis --...