This paper establishes the asymptotic distribution of extremum estimators when the true parameter lies on the boundary of the parameter space. The boundary may be linear, curved, and/or kinked. The asymptotic distribution is a function of a multivariate normal distribution in models without...

In this paper the outlier robust GMM panel data estimator recently proposed by Lucas, van Dijk, and Kloek (1994)is applied to an Euler equation model of firm investment behaviour with imperfectly competitive product markets for a small panel of German nonfinancial stock companies. Plots for...

In this paper a post-sample prediction test is derived forestimators based on the Efficient Method of Moments. The mainadvantage of this particular test over other stability tests isthat no time-consuming estimation of the structural parameters forthe post-sample is needed. The asymptotic...

One of the most conspicuous features of politics at the turn of the millennium is the emergence of issues which transcend national frontiers. Processes of economic internationalization, the problem of the environment and the emergence of regional and global networks of communication are...

In this paper the outlier robust GMM panel data estimator recently proposed by Lucas, van Dijk, and Kloek (1994) is applied to an Euler equation model of firm investment behaviour with imperfectly competitive product markets for a small panel of German nonfinancial stock companies. Plots for...

Estimation using simulation techniques may be very time consuming. Specification tests for structuralstability often require more than one of such computationally demanding estimators. Typically one for thesample, one for the post-sample and one for the combination of sample and post-sample is...