Option Exercise Games: An Application to the Equilibrium Investment Strategies of Firms

Under the standard real options approach to investment underuncertainty, agents formulate optimal exercise strategies inisolation and ignore competitive interactions. However, in manyreal-world asset markets, exercise strategies cannot be determinedseparately, but must be formed as part of a strategic equilibrium.This article provides a tractable approach for deriving equilibriuminvestment strategies in a continuous-time Cournot–Nashframework. The impact of competition on exercise strategiesis dramatic. For example, while standard real options modelsemphasize that a valuable "option to wait" leads firms to investonly at large positive net present values, the impact of competitiondrastically erodes the value of the option to wait and leadsto investment at very near the zero net present value threshold.