About 50 years ago Art Laffer drew a convex curve on a napkin to illustrate the power of tax cuts to two senior officials from the Ford administration named Donald Rumsfeld and Dick Cheney.
Economic Theory, Vol. 40, No. 3 (Sep., 2009), pp. 457-471 (15 pages) This paper examines a model of optimal growth where the aggregation of two separate well behaved and concave production ...