We study aggregate capital dynamics in an investment model with idiosyncratic productivity shocks, fixed capital adjustment costs, and irreversibility driven by a wedge between capital purchase and resale prices. We derive sufficient statistics capturing the role of investment frictions on...

Mainstream Macroeconomics has withdrawn completely from its remote origins in Keynes and Kalecki, replacing the principle of effective demand (P.E.D.) with supply economics, investment with savings, and dynamics with equilibrium as a norm This article discusses, in the event of Kalecki’s...

We study the time-varying effects of Tobin's q and cash flow on investment dynamics in the USA using a vector autoregression model with drifting parameters and stochastic volatilities estimated via Bayesian methods. We find significant variation over time of the response of investment to shocks...

Although large changes in real exchange rates have occurred during the past decades, the real implications of these movements remain an empirical question. Using detailed data from the United States, Canada, the United Kingdom, and Japan we examine the implications of exchange rates for time...

This paper exploits the 2003 mutual fund trading scandal to investigate firms’ seemingly myopic investment behavior following negative stock price shocks. Firms affected by the scandal are more likely to meet or marginally beat earnings targets by cutting research and development and other...

We develop a q theory of investment with endogenous leverage, payout, hedging, and risk-taking dynamics. The key frictions are costly equity issuance and incomplete markets. We show that the marginal source of external financing on an on-going basis is debt. The firm lowers its debt when making...

In this paper we derive a model of aggregate investment that builds from the lumpy microeconomic behavior of firms facing stochastic fixed adjustment costs. Instead of the standard sharp (S,s) bands, firms' adjustment policies take the form of a probability of adjustment (adjustment hazard) that...

We propose a stochastic control model to study corporate investment with generalized investment frictions, including investment lags and various of adjustment costs. We find that the dominance of the ``good news principle'' or ``bad news principle'' is determined by the joint effect of...

This paper analyzes the effects of changes in government expenditures on both a domestically produced and an imported good in an open economy based on intertemporal optimizing behavior. The dynamic adjustment is characterized in detail and the critical role played by the accumulating capital...

In this paper, I propose a method to disentangle the informational content of the average Tobin’s q by decomposing it into tangible q and intangible q. I argue that this decomposition increases the explanatory power of the q theory of investment by considering the different nature of corporate...

Investment is often irreversible, in that installed capital has little or no value unless used in production. In the presence of ongoing uncertainty, an individual firm's irreversible investment policy optimally alternates short bursts of positive gross investment to periods of inaction, when...

In this study, we investigate an optimal consumption and investment problem of an economic agent who faces a welfare constraint; the agent does not accept her expected utility (continuation value) falls below a certain fixed level regardless of the time and state. This optimization problem...

This paper surveys the neoclassical theory of aggregate investment and its criticisms. We identify four main strands in neoclassical investment theory: (i) the traditional Wicksellian model; (ii) the Fisherian "array-of-opportunities" approach; (iii) the Jorgensonian model; (iv) the now...

This paper proposes a model of diversifiable uncertainty, irreversible investment decisions, and endogenous growth. The detailed microeconomic structure of the model makes it possible to study the general equilibrium effects of obstacles to labor mobility. Labor mobility costs reduce private...

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...

It is quite impossible for Kalecki’s Theory of Effective Demand to have anything to do with Keynes’s Theory of Effective Demand because Kalecki, like Tinbergen, was a frequentist who accepted only precise, exact, additive numerical probability as the general case. For Keynes, probability was...

Our two related goals in this paper are the following: Firstly and mainly, we want to examine the effects of major changes in modelling strategy and econometric methodology, over the past twenty years, on estimation of firm-level investment equations using panel data. Secondly, we try to assess...

We study SPACs in a continuous-time delegated investment model. Our model is built upon three unique features of SPACs: the sponsor and the investor are only partially aligned, a SPAC has a short time horizon, and the investor has the final control over investment approval. Due to the...

We study the effects of aggregate and idiosyncratic uncertainty on the entry of firms, total investment, and prices in a competitive industry with irreversible investment. We first use standard dynamic programming methods to determine firms' entry decisions, and we describe the resulting...

This paper surveys the neoclassical theory of aggregate investment and its criticisms. We identify four main strands in neoclassical investment theory: (i) the traditional Wicksellian model; (ii) the Fisherian "array-of-opportunities" approach; (iii) the Jorgensonian model; (iv) the now...

This work makes a comparative analysis of the evaluation of an investment project, considering two approaches, one with cash flows at constant prices and the other at current prices. The goal is to determine which of these two approaches is best for project evaluation to make the right...

Macroeconomic and sector-specific shocks exert differential effects on investment in disaggregate sectoral data. The response to macroeconomic shocks is hump-shaped, just as in aggregate data. The effects of sectoral innovations decrease monotonically. A calibrated model of investment with...

Leading production-based asset pricing models predict that the sources of fluctuations in real investment and (scaled) stock prices are the same. Yet, extant empirical findings point to a large difference in these sources. We revisit this empirical question by deriving a present-value relation...

We develop a q theory of investment with endogenous leverage, payout, hedging, and risk-taking dynamics. The key frictions are costly equity issuance and incomplete markets. We show that the marginal source of external financing on an on-going basis is debt. The firm lowers its debt when making...

Macroeconomic and sector-specific shocks exert differential effects on investment in disaggregate sectoral data. The response to macroeconomic shocks is hump-shaped, just as in aggregate data. The effects of sectoral innovations decrease monotonically. A calibrated model of investment with...

A pervasive feature in the finance industry is relative performance, which can include extrinsic (money), intrinsic (self-image), and reputational (status) motives. In this paper, we model a portfolio decision with two assets and investigate how reputational motives (i.e., the public...

It has been contended that Islamic banks and financial institutions continue to use the interest rate mechanism as a benchmark for procurement and placement of funds because in the absence of an interest rate mechanism there is no benchmark against which the cost of capital can be measured and...

This paper offers a dynamic theory of bank lending standards with two features. First, bank screening takes time. Second, the borrower pool is determined endogenously by firm entry. I show that in booms, banks reduce standards by offering unscreened credit to any borrower, which results in many...