"Fisher (1904, p. 387) defined capital as "a stock (of wealth or property, or the value of either) existing at an instant of time." Fisher's conception of capital is inextricably linked to time. The value of a capital asset is derived from its potential to provide a flow of benefits through the...

This paper derives the optimal harvesting policy for a renewable natural resource using a real-option model. The harvesting policy is illustrated using the well-known “tree-cutting” or “optimal rotation” problem from Forest Economics. We show how to identify the optimal tree size at...