The Scarf algorithm was the Þrst practical, almost surely convergent method for computing general equilibria of competitive models. The current focus of much computational research is computing equilibrium of dynamic stochastic models. While many of these models are examples of Arrow-Debreu equilibria, Scarf’s algorithm and subsequent homotopy methods cannot be applied directly since they have ...

Theories based on partial equilibrium reasoning alone cannot explain the widespread negative cross-sectional correlation between parental wages and fertility, without restrictive assumptions on preferences and childcare costs. We argue that incorporating a dynamic general equilibrium analysis of returns to human capital can help explain observed empirical patterns. Other by-products of this the...

We study equilibrium security price dynamics in an economy where nonfundamental risk arises from agents' heterogeneous beliefs about extraneous processes. We completely characterize equilibrium in terms of the economic primitives, via a representative agent with stochastic weights. Besides pricing fundamental risk, an agent now also prices nonfundamental risk with a market price which is a risk...

We examine linear-quadratic (LQ) approximation of stochastic dynamic optimization problems in macroeconomics (and elsewhere), in particular in policy analysis using Dynamic Stochastic General Equilibrium (DSGE) models. We first examine the approximation to a general dynamic programming problem, which can be obtained via the Hamiltonian of the problem. We then define the problem that is solved b...

Corporations in most countries are run by controlling shareholders, who have substantially smaller cash flow rights than their control rights in the firm. This separation of ownership and control allows the controlling shareholders to pursue private benefits at the cost of outside minority investors by diverting resources away from the firm and distorting corporate investment and payout policie...

This paper studies the impact of tax-financed universal health coverage schemes on macroeconomic aspects of labor supply, asset holding, inequality, and welfare, while taking into account features common to developing economies, such as informal employment and tax avoidance, by constructing a dynamic stochastic general equilibrium model with heterogeneous agents. Agents have different education...

We incorporate long-term defaultable corporate bonds and credit risk in a dynamic stochastic general equilibrium business cycle model. Credit risk amplifies aggregate technology shocks. The debt-capital ratio is a new state variable and its endogenous movements provide a propagation mechanism. The model can match the persistence and volatility of output growth as well as the mean equity premium...

In this paper a stochastic dynamic general equilibrium (DGE) model with capital accumulation is augmented by sticky wages. Wages are set in a staggered way as in Taylor (1980) implying that the optimal wage will be set for two periods. Prices are also sticky since there are adjustments cost of prices as in Rotemberg (1982). It is confirmed that wage staggering has a higher potential to generate...

This paper develops a theory of regular Markov perfect equilibria in dynamic stochastic games. We show that almost all dynamic stochastic games have a finite number of locally isolated Markov perfect equilibria that are all regular. These equilibria are essential and strongly stable. Moreover, they all admit purification. JEL classification numbers: C73, C61, C62.