In economics, when you put together a highly elastic thing and a highly inelastic thing, you create extraordinary potential for turbulence, volatility, and for unstable prices.

We need to move beyond the demonisation of overpaid traders ... In finance and economics, ill-designed policy is a more powerful force for harm than individual greed or error.

In economics, when you put together a highly elastic thing and a highly inelastic thing, you create extraordinary potential for turbulence, volatility, and for unstable prices.

In absolute terms, we may have to look at restricting the number of flights people take.

Rising inequality can create a more highly leveraged economy, and it can then make the economy vulnerable to a crash like 2008.

The capitalist system is not delivering those decade-after-decade increases it promised. We're not where we should be in terms of our national economies. We don't know how to get out of this malaise and I think we now have to consider more radical policies.

If your credit is going to grow at 10-15 percent per year in order to get your 5 percent GDP growth per year, eventually you're going to have a problem. This isn't a stable system.