Estimates of the marginal product of capital can help forecast economic growth, test competing businesscycle theories, and perform cost-benefit analysis. This paper presents annual and quarterly estimatesof the marginal product of capital in the U.S. separately for the residential and...

"This paper presents a theory of competition for political leadership between incumbent leaders and their challengers in which the possible equilibrium political market structures range from pure monopoly (unchallenged dictatorship) to perfectly competitive (ideal democracy). Leaders are...