How would you rebuild people's confidence in the economy?

When it comes down to it, if you believe John Maynard Keynes view of economics, the economy won’t go nowhere unless people believe it will. Keynes referred to this as “animal spirits.” It doesn’t matter if you cut taxes, or cut government spending or borrow and spend; if people don’t believe it will help, they won’t spend, and if they don’t spend, the economy won’t grow.

Just as a side note, Keynes believed that the Republican solution—reducing the size of government—reduces government spending, which makes the economy even smaller, thus further depressing “animal spirits.”

Anyway, if tax cuts don’t work, and cutting spending doesn’t work, and borrowing to spend doesn’t work, how can we, as a nation and as a world, get people to believe that things are improving? How can we build enough confidence that people will be willing to spend instead of sitting there, holding onto everything they’ve got for fear of being left with nothing if things get worse?