From Greg Ip’s Q&A with Greenspan on the W$J’s economics blog:
At the Fed you said housing was in a froth, but you avoided calling it a bubble. From the vantage point of 2007, can you say now that it was in a bubble? Oh yeah. Lots of froths are equal to a bubble… What was driving prices higher was essentially the aftermath of the decline of the Soviet Union and the fall in real long term interest rates which drove up residential prices all over the world. And indeed, the U.S. was not at the top of the list by any means. It drove them up sooner in Britain and Australia as I recall. I find this issue that the Federal Reserve created the housing bubble just utterly devoid of any awareness of who created all the other bubbles. And they all look alike. Long-term real interest rates moved [in] parallel all over the world and the results were what you always get: a fall in equity [risk] premiums, a rise in price:earnings ratios, huge increases in liquidity, and large increases in the market values of assets.
and on Iraq:
Tell me about your views on the importance of deposing Saddam. My view of the second Gulf War was that getting Saddam out of there was very important, but had nothing to do with weapons of mass destruction, it had to do with oil. My view of Saddam over the 20 years … was that he was very critically moving towards control of the Strait of Hormuz and as a consequence of that, control of the oil market. His purpose would be very much similar to [Venezuelan President Hugo] Chavez’s actions and I think it would be very dangerous for us. So getting him out to me seemed a very important priority.