Sources

Ezra Klein: The Tabarrok curve: http://t.co/16pUSzbZ

Guan Yang: RT @ModeledBehavior: The most important simple graph right now http://t.co/bpI3va4k

Modeled Behavior: The most important simple graph right now http://t.co/bpI3va4k

tylercowen: The Tabarrok Curve, http://t.co/YfdUnG9B

Tim Harford: Patent Policy on the Back of a Napkin - very good by @atabarrok http://t.co/g0bRXR1i

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