Many studies of the determinants of investment use Tobin’s q to control for the investment opportunities of a firm. Tobin’s q roughly measures the average return on a firm’s capital anticipated by the market. More relevant for investment decisions, however, is the marginal return on...

The quest for benefit from existing wealth or by seeking privileged benefit through influence over policy is known as rent seeking. Much rent seeking activity involves government and political decisions and is therefore in the domain of political economy, although it can also take place in...