This article constructs a real options model in which a firm has a privileged right to exercise an irreversible investment project with a stochastic payoff. Supposing that the investment costs are fully sunk, a firm that exercises the investment option after debt is in place will then choose a...

This article investigates theissue of optimal effluent fees in a frameworkwhere waste emissions are abated by investingin capital of which the pay-off is uncertainand the cost is fully sunk. The stock of wasteemissions harms an individual firm'sproduction, but the firm will underestimatethis...