Summary We show that under the alternative hypothesis the Hausman chi-square test statistic can be negative not only in small samples but even asymptotically. Therefore in large samples such a result is only compatible with the alternative and should be interpreted accordingly. Applying a known...

Erste Schritte - Datentypen - Kommandosprache -- Vom Umgang mit Datasets -- Die Gretl-Sitzung -- Regressionsanalyse von Querschnittsdaten -- Probleme der Modellbildung und Maßnahmen zur Qualitätssteigerung -- Regressionsanalyse von Zeitreihen -- Regressionsanalyse von Panel-Daten -- Anhang:...

Given that for France, Germany, Italy and the Netherlands the unemployment rates are best classified as <italic>I</italic>(1), we apply permanent-transitory decompositions based on co-integrated Vector Autoregressions (VAR) with relevant variables (labour productivity, wages, tax wedges, foreign relative prices)...

There is a significant variation in demographic development among European Union (EU) member states. Using the UN’s Population Prospects, we examine how different retirement ages in selected EU countries would lead to comparable relations between the working-age population and pensioners in...