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Interstate Migration Has Fallen Less Than You Think

One of the exceptional things about the U.S. is how mobile our workers are. It means that worker shortages in North Dakota won’t last long, as workers will move there from jobless Nevada. There’s been a lot of concern that the housing crisis has halted this important adjustment mechanism. According to the Census Bureau, the number of people moving across state lines has plummeted in recent years. Problem is: It’s just not true. Read More »



Quotes Uncovered: A Call for Quotes

Having spent recent weeks soliciting suggestions of favorite quotations and phrases from readers for the next edition of The Yale Book of Quotations, let me now again turn the tables. Do any readers have any quotations whose origins they would like me to attempt to trace? Read More »



What I Learned While Running the New York Marathon

When I stated on this blog that I was hoping to run the NY marathon in under four hours, I was hoping that my public commitment would spur me on. And it did. Sort of. I ran under four hours – 3:54:59 to be precise – which I’m thrilled by. So score one for Ian Ayres and the value of public commitments. Read More »



The Biggest Bang for the Climate-Change Buck?

The world is full of efforts and estimates toward reducing carbon emissions. A new paper by David Wheeler and Dan Hammer argues that the best bang for the climate change buck may lie in family planning and girls’ education: $1 million spent could save 250,000 tons of CO2. Read More »