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...

Diese Abhandlung hat die isolierende Betrachtungsweise (ceters-paribus-Analyse) und konzeptionellen Grundlagen der aggregierten Analyse zum Gegenstand. Die Überlegungen bauen auf den Schriften von Alfred Marshall (1842-1924) und John Maynard Keynes (1883-1946) auf.

In explaining economic phenomena, economic analysis concentrates on selected influences and fixes the host of other factors under a ceteris paribus clause. This view, which goes back to Alfred Marshall (1842-1924), is developed in the first part of the book. Aggregation is viewed as a particular...