Treiben Immobilienpreise die gesamtwirtschaftliche Konsumnachfrage?

In recent times increasing house prices have been credited with a stong positive influence on aggre-gate consumption. But it is questionable in how far higher prices are at all able to lift the purchasing power of the economy as whole: The seller’s profit of a high price, equals the buyer’s loss. But while a positive correlation between house prices and consumption is evident, it is not a sign of irra-tional behaviour by market participants. In fact it seems that both factors are driven by other pa-rameters: the interest rate and expectations about future interest rates and economic activity. For a selection of four developed countries, the follow-ing article tries to give an explanation for the house price developments of the past 15 years. While disregarding country specific risk as well as institutional aspects and demographic factors, a present value caluclation forms the basis for esti-mating a fundamentally justified price movement. Expectations for future rents and discount rates are being proxied by a moving average of past values. It can be observed how interest rate changes and long-run economic growth, two as-pects that clearly also drive private consumption, play a key role here.