This paper uses a system of differential equations to describe the insurgency in Iraq. The system has four possible outcomes or cases: (1) The U.S.-led coalition increases in size and the number of attacks by the insurgents increases. (2) The size of the U.S.-led coalition decreases and the...

Utilizing a general equilibrium framework, this paper studies the economic effects of product-quality regulation in competitive ma rket structures. The analysis considers both the short-run and long-r un implications of such regulation upon factor rewards and allocation s and upon product price....