What is a housing bubble? Answering your questions as housing market spikes, raises concerns - USA TODAY

America's real estate market may be showing signs of a bubble as home prices become 'unhinged.' But what does that mean exactly? We explain.

• House prices can be out of sync with market fundamentals when there is widespread belief that the current robust price increases will continue
• An analysis by housing giant Freddie Mac… [+5779 chars]
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