"I feel totally safe playing polo on a field full of pros. But when amateurs are all over the field, someone can get killed. They have more guts than brains. They charge after every ball and don't know when to hold back."

That's America's commercial property king Tom Barrack comparing the property market with the polo field. America's bubble-anxiety is newer than our own crash-concern, and it's yet to be seen whether they can show the restraint necessary to sit tight and whether the storm in the same way British investors and homeowners appear to have. Barrack clearly has doubts, and his decision to more-or-less sell everything except casinos is making the headlines right now. He points to high oil prices and the knock-on effect of more expensive building materials as the major cause for concern. A glut of discounted new-builds, sold off by over-stretched American developers who need out quick, may just be what pops their bubble. That and over-eager amateurs who in the short term (and to add another metaphor) call every raise... More, here.