Investor Rationality and House Price Bubbles: Berlin and the German Reunification

Author:

Holtemöller Oliver1,Schulz Rainer2

Affiliation:

1. Halle Institute for Economic Research (IWH), Halle (Saale) , Germany

2. University of Aberdeen, Aberdeen , United Kingdom of Great Britain and Northern Ireland

Abstract

Abstract We analyze the behavior of investors in the Berlin rental apartment house market over the years 1980-2004. Using constant-quality multipliers ( price- rent ratios), we reject the hypothesis that multipliers in the market were set in a rational manner. Supported by narrative evidence, we conjecture that investors misjudged the economic effects of the German reunification. To examine this, we employ a stylized structural economic model and analyze the effects of shocks on rational multipliers. It seems that investors confused the reunification with a permanent supply side shock to the economy. By basing their investment decisions on this misjudgement, investors behaved irrationally, but in a very uncertain and unprecedented environment.

Publisher

Walter de Gruyter GmbH

Subject

Economics and Econometrics

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