Die vorliegende Arbeit untersucht, welchen Beitrag die sogenannten Konvergenzregressionen einerseits und die Schätzungen von Markov-Ketten andererseits zur Klärung der Frage leisten können, ob die regionalen Pro-Kopf-Einkommen in Westdeutschland seit Mitte der siebziger Jahre konvergiert oder...

We propose a first order bias correction term for the Gini index to reduce the bias due to grouping. The first order correction term is obtained from studying the estimator of the Gini index within a measurement error framework. In addition, it reveals an intuitive formula for the remaining...

We propose a novel approach to deal with the problem of indeterminacy in Linear Rational Expectations models. The method consists of augmenting the original state space with a set of auxiliary exogenous equations to provide the adequate number of explosive roots in presence of indeterminacy. The...

This paper studies the properties of generalised empirical likelihood (GEL) methods for the estimation of and inference on partially identified parameters in models specified by unconditional moment inequality constraints. The central result is, as in moment equality condition models, a large...

In this paper, several identities concerning expectation, variance, covariance, cumulative distribution functions, the coefficient of variation, and the Lorenz curve are obtained and they are used in establishing theoretical results. Furthermore, a graphical representation of the variance is...

A simple dynamic model of criminal behavior is estimated. The object is to see if the dynamics involved help differentiate between alternative structural hypotheses involving empirical regularities such as the age crime profile. This refers to the observation that criminal behavior seems to peak...

Objective - To find lower and upper bounds of HIV prevalence in Malawi under mild and intuitive assumptions to assess the importance of the refusal issue in the estimation of HIV prevalence.Methods - We derive bounds based on the following two key assumptions: (i) Among those who have never...

We study an expansion of the cumulative distribution function of the standard normal random variable that results in a family of closed form approximations that converge at 0. One member of the family that has only five explicit constants offers the absolute error of 5.79 10^{-6} across the...

We estimate parametric Champernowne distribution functions for corporate assets in the United States to obtain continuous measures of aggregate concentration and corporate inequality. Our series on asset shares of the largest 200 and 500 non-financial firms show that concentration before World...

Estimation of composed error frontier models is generally conducted under certain strict assumptions. In practice however, these assumptions are not tested thoroughly. This is probably because simple workable tests are not yet available for these models. This paper develops easily computable...