For all these &#x27;bubble&#x27; cities (Vancouver, S.F., Seattle, London, ...), I wonder if the bubble ever pops? Are there examples of the prices&#x2F;avg. income getting so far out of whack that things collapse?<p><a href="http:&#x2F;&#x2F;www.economist.com&#x2F;blogs&#x2F;dailychart&#x2F;2011&#x2F;11&#x2F;global-house-prices" rel="nofollow">http:&#x2F;&#x2F;www.economist.com&#x2F;blogs&#x2F;dailychart&#x2F;2011&#x2F;11&#x2F;global-hou...</a><p>Detroit probably experienced a R.E. bubble in the day...