Medical tourism can be considered a kind of import: instead of the product coming to the consumer, as it does with cars or sneakers, the consumer is going to the product.

Self-dealing, essentially, occurs when managers run companies to line their own pockets instead of those of the companies' owners. It's been a perennial problem in American capitalism and became a real dilemma when America moved toward a model in which corporations would be run by professional managers who had only small ownership stakes.

Standards wars involve lots of variables, and understanding them often seems more an art than a science. They generally involve just two big players, and end in a winner-take-all situation.

You might say that economic history is the history of people learning to manage risk.

It was through the private world of family that the public world of politics came alive for me: living in intimate proximity with people for whom larger questions of ideology and belief, as well as issues relating to politics and governance, were vivid daily realities.

If our political leaders are to be always a lot of political merchants, they will supply any demand we may create. All we have to do is to establish a steady demand for good government.

As president, I won't just continue to defend women's civil rights from political attacks - I'll make guaranteeing those rights a priority.

Bringing climate change to the forefront of American politics means making politicians feel the heat - in their campaign coffers and at the polls - and it's time we voters make a change.