We investigate price index convergence on the base of regional data for 439 German districts. Prices refer to the overall consumer price index as well as to the index without housing prices. To increase the efficiency of the testing framework, a panel unit root analysis is performed, where cross section dependencies are taken into account. The tests indicate a lack of regional price convergence. While ...
This paper addresses the existence of Nash equilibria in one-way flow or directed network models in a number of different settings. In these models players form costly links with other players and obtain resources from them through the directed path connecting them. We find that heterogeneity in the costs of establishing links play a crucial role in the existence of Nash networks. We also provide conditions ...
Nonresponse stellt ein ernstzunehmendes Problem für die Möglichkeit dar, von einer Stichprobe auf die Grundgesamtheit zu schließen. Durch Nonresponse verringert sich zunächst die Fallzahl der Stichprobe, sodass sich die Effizienz der Schätzer der Grundgesamtheitsparameter im Vergleich zu einer Stichprobe ohne Nonresponse verringert. Zudem besteht die Gefahr der Verzerrung der Schätzer, wenn sich Teilnehmer ...
