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This is the kindergarten study that Betsey Stevenson mentions:

http://docs.google.com/viewer?a=v&q=cache:0afWxgyn5bIJ:obs.rc.fas.harvard.edu/chetty/STAR.pdf+%E2%80%9CHow+Does+Your+Kindergarten+Classroom+Affect+Your+Earnings?+Evidence+from+Project+Star,%E2%80%9D&hl=en&gl=us&pid=bl&srcid=ADGEESgi9nLrAGtNDvVOpGVY5ICjXjq4KXgT-S2Nrl2Jnz0Ex-IWaQlqQiYesMwzSOrjjMPGtlRevlrEgq3V_V4HDLnizQpscHhWIP1v_CsEvhJ_n3zhNP9TS3oJSlLkx7ZpUZWof78t&sig=AHIEtbSwiYQODLy5zsVqaEdxLHW7FLjpLg&pli=1

Quality teachers and small classrooms in kindergarten seem to have a big effect on earnings in adulthood even though the effect on test scores quickly fades. This is consistent with the perry preschool findings. These findings are odd.

Why are they odd?

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i still think they are missing the big piece of Groupon Economics.. what percentage get bought and unused.. I'm guessing > 30%

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I thought that Groupon created value by increasing the buying power of consumers through collective bargaining - that's a loser for merchants all around. This concept is baked into the name. It seems fundamentally different from coupons, which are a retail segmentation tool.

It would be interesting to see a comparison of unions with Groupon. "Groupon membership" seems much more fickle than with unions, and maybe that's its Achilles heel.

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Speaking of what death means to primates...it seems clear that an understanding of "death" is not instinctive. For example:

http://www.youtube.com/watch?v=9Nn0UkdDArM

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Re: Sudan. Is Abhijit serious? Where is South Sudan going to get the resources for a universal cash grant, a biometric identification capability, and a catostrophic coverage health policy? I thought the motivation behind the question was that South Sudan has very little resources, so what should they do to obtain more? But apparently resources grow on trees.

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It seems fundamentally different from coupons, which are a retail segmentation tool.This is consistent with the perry preschool findings.

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This shows which they last very much lengthier and thus saving you income which could otherwise are actually utilized to purchase new ones.

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