What is the best characterization of mergers and acquisitions time-series? The traditional response is that mergers occur in "waves." I estimate a two-state, Markov switching-regime model which should capture wave structure if it is present in the data. Linear and nonlinear diagnostics tests...

The capacity of nonlinear dynamic models to mimic qualitative features of economic data is illustrated with an adaptive version of the neoclassical growth theory. Implications for econometric methodology are discussed, emphasizing structural estimation and qualitative inference. Copyright 1992...

This paper develops a test procedure for serial correlation for discrete switching disequilibrium models which include both an endogenous price adjustment equation and lagged dependent variables. The tests are applied to a model of the U.K. labor market and the model is respecified in the light...

Search and matching models imply that firms' employment adjustment costs depend on the tightness of the labor market, giving rise to endogenous or nonlinear dynamics in employment. This paper sets this argument out in detail, estimating a model simultaneously explaining the long-run level of...

In this paper we describe how restricted vector autoregressions can be employed to examine the sources of macroeconomic fluctuations. We show how cointegration restrictions can be used to identify a VAR system with common stochastic trends subject to transitory and permanent changes in average...

In this paper the authors offer a method for deciding how to aggregate a set of elementary industries. The method is then applied to the problem of estimating a wage equation that allows for industry-specific effects. Their method explicitly formalizes the trade-off between goodness-of-fit and...