Four links this week:

1. Quamrul Ashraf and Oded Galor’s paper on genetic diversity and economic growth has been formally published in February 2013 edition of the American Economic Review (ungated working paper version here). When its release was foreshadowed a few months ago, it generated some interesting debate (such as here and here, particularly in the comments). Starting next week I’m going to write series of posts examining the threads of Ashraf and Galor’s argument.
2. The gorilla is invisible, even to radiologists.
3. Was Herbert Spencer a Social Darwinist? (From late 2011, but a good read)
4. Stephen Corry of Survival International lays into Diamond and Pinker. (HT: Evolvify)

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