Price’s Second Equation. David B continues his technical review of the Price Equation. Selective pressures for accurate altruism targeting: evidence from digital evolution for difficult-to-test aspects of inclusive fitness theory. "Our investigations also revealed that evolution did not increase the altruism level when all green beard altruists used the same phenotypic marker." Read a university press release here. Europe Debates How to Avoid Another Debt Crisis. Recouple rights with responsibilities. What is true within societies for individuals may also operate across societies for nation-states. Race and ethnicity. Data visualization by American city. “Smart editorial, smart readers, and smart ad solutions”: Slate makes a case for long-form on the web. My longer posts invariably are the ones which have the "long tail" in terms of driving traffic over the years.