This paper presents closed-form solutions for the investment and valuation of a competitive firm with a Cobb-Douglas production function and a constant elasticity adjustment cost function in the presence of stochastic prices for output and inputs. The value of the firm is a linear function of...

We present a simple framework that incorporates a role for "interest rate spreads" in models of investment fluctuations. Formally, we develop a simple model of investment and financial contracting under asymmetric information that can he used to generate an Euler equation describing firms'...

A recent literature suggests that because investment expenditures are irreversible and can be delayed, they may be highly sensitive to uncertainty. We briefly summarize the theory, stressing its empirical implications. We then use cross-section and time-series data for a set of developing and...

The optimal timing of real investment is studied under the assumptions that investment is irreversible and that new information about returns is arriving over time. Investment should be undertaken in this case only when the costs of deferring the project exceed the expected value of information...

This paper considers the problem of calculating optimal policy rules to stabilize fluctuations in investment in an economy where firms' investment behavior can be described by a dynamic optimization model. In the optimization model, the dynamics of investment are generated by heterogeneous...

This paper revisits the canonical assumption of nonconvex capital adjustment costs in lumpy investment models as in Khan and Thomas (2008), which are assumed to follow a uniform distribution from zero to an upper bound, without distinguishing between the mean and the variance of the...

This paper extends the theory of investment under uncertainty to incorporate fixed costs of investment, a wedge between the purchase price and sale price of capital, and potential irreversibility of investment. In this extended framework, investment is a non-decreasing function of q, the shadow...

Recent research in macroeconomics has emphasized the importance of linking the financial and real sectors and the need for working with optimizing models. Tobinâ€TMs Q model of investment would appear to provide a framework that can satisfy these two criteria. In contrast to the original...

Suppose that a firm receives a cash windfall which does not change its investment opportunity set, or equivalently its marginal Tobin's Q. What will this firm do with the money? We provide empirical answers to this question using a sample of firms with such windfalls in the form of a won or...

The 90s have witnessed a revival in economists' interest and hope of explaining" aggregate and microeconomic investment behavior. New theories, better econometric" procedures, and more detailed panel data sets are behind this movement. Much of the progress" has occurred at the level of...