Many recent papers, following Gali (1999), have found a negative response of employment to a positive technology shock identified as a permanent shock to labor productivity, contradicting the prediction of standard RBC models. In a recent paper, Christiano, Eichenbaum and Vigfusson (2003) get a...

Unstable government debt dynamics can typically be corrected by various fiscal instruments, like appropriate adjustments in government spending, public transfers, or taxes. This paper investigates properties of state-contingent debt targeting rules which link stabilizing budgetary adjustments...

The problem of choosing optimal investment and consumption strategies has been widely studied. In continuous time theory the pioneering work by Merton (1969) is a standard reference. In his work, Merton studied a continuous time economy with constant investment opportunities. Since then Merton's...

While tests for unit roots and cointegration have important econometric and economic implications, they do not always offer conclusive results. For example, Rudebusch (1992; 1993) demonstrates that standard unit root tests have low power against estimated trend stationary alternatives. In addition,...

Over the past decade, questions over the impact of new information technologies on productivity growth trends have played an important role in the formulation of monetary policy, particularly in the United States and Canada. However, formal testing of whether the trend growth rate of aggregate...

Recent literature in Industrial Organization has shown that the threat of entry limits the price setting power of dominant firms and stimulates the incumbents to increase innovations ---both leading to welfare improvements. On the other hand dominant firms as incumbents strive to build up entry...

Centralized exchange has a worst-case size-complexity many orders of magnitude lower than decentralized monetary exchange for the same number of agents and goods. A more rapid approach to competitive equilibrium may therefore be possible through centralized exchange. An additional benefit of...

We examine optimal and other monetary policies in a linear-quadratic setup with relatively general forms of model uncertainty. The forms of uncertainty our framework encompasses include: simple i.i.d. model deviations; serially correlated model deviations; estimable regime-switching models; more...

I consider two filtering algorithms (quadrature and mixture Gaussian) based on numerical integration for maximum likelihood estimation of stochastic volatility models with leverage. These algorithms extend straightforwardly to stochastic volatility models with non-Gaussian innovations. A small...

Total factor productivity (TFP) computed as Solow-residuals could be subject to input-substitution bias for two reasons. First, the Cobb-Douglas (CD) production function restricts all input substitutions to one. Second, observed inputs generally differ from optimal inputs, so that inputs...