Investment and Abandonment Decisions with Uncertain Price and Cost

We analyze firms' investment and abandonment decisions when both output price and investment cost change stochastically. The model allows for and makes endogenous the abandonment decision, thereby incorporating irreversibility. We show that the investment trigger may be much higher than the standard net present value rule suggests even when a substantial portion of the investment cost may be recovered. Further, we argue that the correlation between output price and investment costs significantly affects the effect of irreversibility on investment behavior. Empirical implications are discussed with extensive numerical illustrations, along with an application to the banking industry.