Americans feel as though the only position they can possibly occupy is number one and if they're not number one, well, the end of the world has come.

Investors are trying to work out some risk premiere that have some correspondence with actual risks. But they don't, they're not, they can't go very far that way, because the actual correspondence isn't really there in a lot of cases. So once people stop believing in these stories, and then the crash can come very, very quickly. They believe that house prices are correctly priced for some time and then suddenly they realized there's no real basis for that. But what is the correct price? We don't know that either. It's just that everything swings.

The psychology of the saver and the psychology of the investor is very closely connected with Keynes' distinction between risk and uncertainty. When the future is uncertain, he thought that a lot of saving would be directed towards securing, securing more, getting more security in the present, rather than building wealth in the future, which was the classical view, you save in order to invest, in order to consume more later on. What he had called the propensity to hoard or liquidity preference would normally be stronger than the inducement to invest.

What would've happened, do you think, had the government not intervened in October 2008? The catastrophe to the economy would've been absolutely unbelievable. And yet classical economists say, "Oh, well, no, it would've adjusted perfectly happily, a few weeks of pain and then everything would've gone on as before, without a banking system left." And that's what makes it so maddening, that these bankers are back saying it was all the government's fault. The government saved their skins. It didn't want to, but it needed to save their skins in order to save the rest of us.

There's no automatic mechanism in a market system that reconciles the desire to save and the desire to invest. And therefore, the government has to sort of do something or the Federal Reserve, the Fed, or the Central Bank, or whatever, it has to intervene. It has to create enough investment for the economy not to suffer from a fall in aggregate demand. So, if you don't have a balance within the market system itself, then you need an external balance and that's what I think Keynes believed.

Americans feel as though the only position they can possibly occupy is number one and if they're not number one, well, the end of the world has come.

Bankers were scapegoats for the whole Reagan-Thatcher era, which exalted finance and humbled industry, and which had allowed the fruits of progress to accrue disproportionately to the rich and super-rich.