This paper overviews the issues connected with proposals to spur investment using tax incentives. There are four main conclusions: (1) The rate of net capital formation in the U.S. has declined very substantially. This decline has been associated with a sharp fall in the after tax return to...

This paper presents an analysis of the effects of tax policy on capital accumulation and valuation based on James Tobin's q theory of investment. As Tobin has explained, aggregate investment can be expected to depend in a stable way on q, the ratio of the stock market valuation of existing...

We examine the investment decision problem of a group whose members have heterogeneous time preferences. In particular, they have different discount factors for utility, possibly not exponential. We characterize the properties of efficient allocations of resources and of shadow prices that would...