With over 80% home ownership, the epic boom in housing prices of the last ten years has spread deep into the American middle class. Equity holdings are somewhat more concentrated, but many middle class Americans have still benefited indirectly through their pension funds.
真正的驱动因素有两层。第一层，也是最重要的，是美国政府和消费者已经陷入了一场从不停歇的消费狂潮。在消费者方面，这是不难理解的。随着置业率超过80%，房价在过去十年里的历史性成长的事实已经广泛深入美国中产阶级。虽然股权更为集中化，但许多美国中产阶级仍然从他们的养老金中间接获益。