Who most benefits from keeping marijuana illegal? The greatest beneficiaries are the major criminal organizations in Mexico and elsewhere that earn billions of dollars annually from this illicit trade - and who would rapidly lose their competitive advantage if marijuana were a legal commodity.

There is no doubt that the countries that now have a very large debt have not introduced the kind of structural reforms that Germany did and are therefore at a disadvantage. But the problem is that this disadvantage is becoming even more pronounced through the punitive policies in place.

The US needs a cap and trade system with auctioning of licenses for emissions rights. The revenues from these auctions can be used to launch a new, environmentally friendly energy policy. That would be yet another federal program that could help us to overcome the stagnation.

We in the United States are very often - since we are a democracy and we have national interests, we've often made the mistake that a democracy has to adopt America's interests, and that is a contradiction because a democracy basically is people deciding what their interests are.

As I discovered, there is a great deal of similarity between a boom-bust process in the financial markets and the rise and fall of the Soviet system.

Markets can influence the events that they anticipate.

The securitisation of mortgages added a new dimension of systemic risk. Financial engineers claimed they were reducing risks through geographic diversification: in fact they were increasing them by creating an agency problem. The agents were more interested in maximising fee income than in protecting the interests of bondholders. That is the verity that was ignored by regulators and market participants alike.