The accuracy of the solution of dynamic general equilibrium models has become a major issue. Recent papers, substituting second order for first order approximations, have shown to obtain significant differences in accuracy. Second order approximations have had some considerable success in...

We study the mechanism of inequality due to educational lock-in effects. Recent research on inequality such as Brock and Durlauf (2000a, b) and Durlauf (1999a, b, 2000) has emphasized the fact that the composition and behavior of groups to which a person belongs play an important role for...

We estimate a dynamic, intertemporal optimisation model that mimics features of European labour markets, such as sticky nominal wages and sluggish adjustment of employment to shocks for 15 OECD countries. The estimates include a measure for the degree of labour market sluggishness that compares...

Inspired by findings of nonlinearities and the Theorem of Takens (1981), forecasting models of financial time series are often built upon nonlinear univariate relationships. Empirical investigations, however, are seriously contaminated by the problem of overfitting, in particular in the presence...

Market share instability, during certain stages of the industry life-cycle, has become a stylized fact in the industrial organization literature. In the finance literature, volatility in the form of excess volatility, i.e. the much larger volatility of stock prices than dividends (although stock...

The paper presents an infinite horizon model of innovation and diffusion incorporating features from recent advances in evolutionary economics. A stochastic variant is explored which posits that technological knowledge is costly to obtain, requiring resource expenditure. There are heterogeneous...