· Chris Blattman on a new paper by David Card, Stefano DellaVigna, and Ulrike Malmendier on how many experiments are getting published in top economics journals, and on the role of theory in these.
· Justin Sandefur at the CGD blog on what has happened to deworming programs in Kenya.
· Banerjee and Duflo in Foreign Policy magazine on whether there are really more than 1 billion hungry people in the world
· A summary in Science of new research which shows that paying incentives has a 0.64 standard deviation average effect on IQ scores, and points out that the correlations we observe between ability measures and outcomes when ability is measured in low-stakes settings (like surveys) may pick up motivation as much as ability. (HT Marginal Revolution).
And, finally Sebastián Martínez talks about the new book 'Impact Evaluation in Practice' over at the IADB blog.
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