The figures published annually by the IAB concerning the stock of job vacancies across the economy could potentially provide information about the extent of mismatch unemployment that could be of value in terms of labour market diagnosis. This paper explains that the IAB figures on this do not,...

Das Institut für Arbeitsmarkt- und Berufsforschung (IAB) führt seit dem Jahr 1989 einmal jährlich eine repräsentative Erhebung des gesamtwirtschaftlichen Stellenangebots in Unternehmen und öffentlichen Verwaltungen Deutschlands durch. An der jüngsten Befragung im Herbst 2004 beteiligten...

Taking up the discussion surrounding the reliability of the IAB reports on the stock of vacancies in Germany in this journal (ZAF, issue 1/2005), this paper clears up misunderstandings, corrects incorrect statements, and presents further new arguments. The paper is intended to show that it would...

Wir konzentrieren unsere Anmerkungen auf den - nach Scherl - zentralen Punkt der Diskussion, nämlich die Frage, ob die Zahl der angebotenen 'sofort zu besetzenden Stellen' in der IAB-Erhebung korrekt erfasst wird. Des weiteren befassen wir uns mit dem ausgesprochenen Verdacht der...

The analysis of job tasks has become a field of growing scientific activity in recent years. Information on such tasks has been used to analyze various research questions, especially regarding changes in the overall structure of the economy and their implications for persons and firms. Arguably...

A self-proclaimed expert uses past observations of a stochastic process to make probabilistic predictions about the process. An inspector applies a test function to the infinite sequence of predictions provided by the expert and the observed realization of the process in order to check the...

Each member of a group receives a signal about the unknown state of the world and decides upon a utility-maximizing recommendation on the basis of that signal. The individuals have identical preferences. The group makes a decision that maximizes the common utility function assuming perfect...