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Concept
Real-estate bubble
Summary
A real-estate bubble or property bubble (or housing bubble for residential markets) is a type of economic bubble that occurs periodically in local or global real estate markets, and it typically follows a land boom. A land boom is a rapid increase in the market price of real property such as housing until they reach unsustainable levels and then declines. This period, during the run-up to the crash, is also known as froth. The questions of whether real estate bubbles can be identified and prevented, and whether they have broader macroeconomic significance, are answered differently by schools of economic thought, as detailed below.
Bubbles in housing markets are more critical than stock market bubbles. Historically, equity price busts occur on average every 13 years, last for 2.5 years, and result in about a 4 percent loss in GDP. Housing price busts are less frequent, but last nearly twice as long and lead to output losses that are twice as large (IMF World Economic Outlook, 2003). A recent laboratory experimental study also shows that, compared to financial markets, real estate markets involve more extended boom and bust periods. Prices decline slower because the real estate market is less liquid.
The financial crisis of 2007–2008 was related to the bursting of real estate bubbles that had begun in various countries during the 2000s.
As with all types of economic bubbles, disagreement exists over whether or not a real estate bubble can be identified or predicted, then perhaps prevented. Speculative bubbles are persistent, systematic and increasing deviations of actual prices from their fundamental values. Real estate bubbles can be difficult to identify even as they are occurring, due to the difficulty of discerning the intrinsic value of real estate. As with other medium and long range economic trends, accurate prediction of future bubbles has proven difficult.
In real estate, fundamentals can be estimated from rental yields (where real estate is then considered in a similar vein to stocks and other financial assets) or based on a regression of actual prices on a set of demand and/or supply variables.
Official source
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