The present value equation in finance is shown to be equivalent to the Laplace transformation in mathematics. Based on this observation, the list of known analytic solutions for the present value problem is increased from a handful to more than one hundred. General properties of the Laplace transform are examined as well in light of the newly discovered significance for finance.

Stephen A. Buser, Anti-Diversification or Optimal Programmes for Infrequently Revised Portfolios: Discussion, The Journal of Finance, Vol. 34, No. 2, Papers and Proceedings, Thirty-Seventh Annual Meeting, American Finance Association, Chicago, Illinois, August 29-31, 1978 (May, 1979), pp. 529-531

This paper seeks to explain the combination of explicit and implicit pricing for deposit insurance employed by the FDIC. Essentially, the FDIC sells two products—insurance and regulation. To span the product space, it must and does set two prices. We argue that the need to establish regulatory disincentives to bank risk‐taking is the heart of the controversy over the adequacy of bank capital and that the ability to close risky banks before exhausting their charter value (i.e., the value of their right to continue in business) stands at the center of these disincentives and in front of the FDIC's insurance reserves.