Bei der Festsetzung des Lohnsatzes für eine bestimmte Tätigkeit wird die Unternehmung den Lohnsatz weder unnötig hoch wählen noch so gering , dass es unwahrscheinlich wird, eine geeignete Arbeitskraft zu finden. So werden die Lohnsätze unter Berücksichtigung ihres Einflusses auf die...

A PAYGO system may serve as insurance against not having children and as an enforcement device for ungrateful children who are unwilling to pay their parents a pension. In fact, the latter was Bismarck’s historic motive for introducing this system. It is true that the PAYGO system reduces the...

Due to exceptionally low birth rates, the dynamism of Europe will be lagging behind that of other regions of the world for the time being. The paper assembles a rich body of comparative empirical data to clarify the extent of the demographic problems for the EU countries. It advances the view...

Although it is not possible, in general, to give a macro description of a micro model over the entire state space of the micro model, it is possible to aggregate exactly over a subspace. The set of micro states where aggregation is possible forms the aggregation set. The paper considers the...