When Texans suffered from the collapse of the oil market in the 1980s, they could rely on the fiscal union to help them. When Texas boomed with rising oil prices in the 2000s, it contributed to the union to help harder hit regions.

The U.S. fiscal union has worked, in no small part, by enabling subsidies to the Mississippis without requiring the approval of the Minnesotas. It creates an important form of insurance.

It's clear that the medium and long-run fiscal challenges facing the country have to do with the rise of entitlement spending, they have to do with the longer run imbalances that we've created in the structure of the system.

Giving Northern Europe a veto over Southern Europe's budgets will not hold a monetary union together. The euro zone will continue to need the weaker countries to stomach decades of high unemployment to grind down wages.

If you had asked people in 1929, 'Here is what is about to happen. How much would you pay to avoid the Great Depression from occurring?' The answer is they would have paid a lot. They would have borrowed money if it could be used to prevent the Great Depression.

I am a data hound and so I usually end up working on whatever things I can find good data on. The rise of Internet commerce completely altered the amount of information you could gather on company behavior so I naturally drifted toward it.