A vital component of a Plan A is likely to be additional money. For one thing, there is suspicion that the amount of toxic assets is considerably greater than the rescue plan provides for. For another, more money may be required to address the problem in the housing market by providing relief to subprime and marginal borrowers. And finally, further fiscal stimulus could become necessary if recessionary forces take hold.

Where will this additional money – perhaps as much as another $500bn – come from? The US taxpayer is wary. Joe Six-Pack has ponied up a lot already, and done so with no great confidence that the money was for a worthwhile cause or that it will be well spent.

Enter China. Ken Rogoff of Harvard cheekily characterised the vast Chinese accumulation of US Treasury bonds over the past five years as the biggest foreign assistance programme in history. Why not push that further? Here is a thought experiment.