In econometric modelling the choice of relevant variables is of crucial importance for the Interpretation of the results. In many cases it is based on some a priori knowledge from economic theory and a rather heuristic procedure for determining other influential variables sometimes based on an...

A widely used method in the analysis of complex econometric models is to replace the "true model" by an aggregative one in which the variables are grouped and replaced by sums or weighted averages of the variables in each group. The analysis of the problem of choosing an aggregative model...

In this paper a macroeconometric disequilibrium model for West Germany is presented and its quality for policy simulations and forecasting are analyzed using stochastic in-sample simulations. The model is built on a dynamic disequilibrium model of firms' behaviour. Due to delayed adjustment of...

Asymmetric information between lender and borrower is made responsible for financing constraints at the firm level which may influence real activity. In this paper a standard model of credit rationing due to adverse selection and adverse incentive effects is used to derive hypotheses on causes...

Dieses Übungsbuch dient als Ergänzung zum Lehrbuch „Empirische Wirtschaftsforschung und Ökonometrie“ und richtet sich an Studierende und Lehrende der Wirtschaftswissenschaften sowie benachbarter Fächer. Es bietet die Möglichkeit, durch das Lösen von Aufgaben unterschiedlicher Typen...

I Einleitung -- Aufgabe und Prinzip der empirischen Wirtschaftsforschung -- II Daten -- Datenbasis der empirischen Wirtschaftsforschung -- Datenaufbereitung -- Wirtschaftsindikatoren -- Input-Output-Analyse -- III Ökonometrische Grundlagen -- Das ökonometrische Modell -- Das lineare...