The US economy was supposed to be in bloom by late spring, but it is hardly growing at all. Expectations for second-quarter growth are not much better than the measly 1.8 per cent annualised rate of the first quarter. That is not nearly fast enough to reduce America’s ferociously high level of unemployment. The labour department will tell us on Friday whether the jobs situation improved in May, but there has been no sign of a surge in hiring.

Meanwhile, housing prices continue to fall. They are now 33 per cent below their 2006 peak. That is a bigger drop than recorded in the Great Depression. Homes are the largest single asset of the American middle class, so as housing prices drop many feel poorer. Consumer confidence is also down.

The recovery has stalled. It is unlikely that America will find itself back in recession but the possibility of a double dip cannot be dismissed. The problem is not on the supply side of the ledger. Corporate profits are still healthy. Big companies continue to sit on a cash hoard. Large and middle-sized companies can easily borrow more, at low rates. The problem is on the demand side. Consumers cannot and will not buy enough to get it moving. They justifiably worry they will not be able to pay their bills. Banks, with equal justification, are reluctant to lend to them. However as long as consumers hold back, companies remain reluctant to hire new workers or raise wages, feeding the vicious cycle.