Don't Blame Capitalism

Absent from such conclusions is the central role the government played in creating the crisis. Yes, many Wall Street leaders were irresponsible, and they should pay. But they were playing the distorted hand dealt them by government policies. Our leaders irrationally promoted home-buying, discouraged savings, and recklessly encouraged borrowing and lending, which together undermined our markets.

...

Prominent among these wrongheaded advantages are the mortgage interest tax deduction and the exemption of real estate capital gains from taxable income. These policies create unnatural demand for home purchases and a (tax-free) incentive to speculate in real estate.