This paper analyses optimal irreversible investment policy when profits are subject to a multiplicative geometric Brownian motion shock. The marginal product of capital is increasing initially and decreasing thereafter. In the latter range, optimal policy is familiar: capacity is added gradually...

We propose a new bankruptcy procedure that makes use of multiple auctions. The procedure is designed to work even when capital markets do not function well (for example, in developing economies, or in economies in transition) - although it can be used in all economies.