We investigate the impact of the Tax Reform Act of 1986 on the relative pricing of U.S. Treasury bonds. We obtain positive, statistically and economically significant estimates for the implicit tax rates of a "representative" investor in the late 1970's and early 1980's. After the 1986 Tax...

Municipal bonds are often "advance refunded." Bonds that are not yet callable are defeased by creating a trust that pays the interest up to the call date, and pays the call price. New debt, generally at lower interest rates, is issued to fund the trust. Issuing new securities generally has zero...

Municipal bonds are often "advance refunded." Bonds that are not yet callable are defeasedby creating a trust that pays the interest up to the call date, and pays the call price. Newdebt, generally at lower interest rates, is issued to fund the trust. Issuing new securitiesto fund payments on...

We develop and analyze a model of a multi-stage investment project that captures many features of R&D ventures and start-up companies. An important feature these problems share is that the firm learns about the potential profitability of the project throughout its life, but that research and...