Understanding Cultural Evolutionary Models: A Reply to Read's Critique

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Abstract
This reply to Read's (2006) critique of my paper (Henrich 2004) is divided into three parts. Part I clarifies misinterpretations and mischaracterizations of both Dual Inheritance Theory in general and my model specifically. Part II addresses several problems in Read's empirical analyses of forager toolkits, and presents an alternative analysis. Part III tackles some common misunderstandings about the relationship between cost-benefit models (such as Read's) and cultural evolutionary modeling approaches, as well as highlighting some concerns with Read's efforts. In writing this, I have tried to introduce the reader to the issues in debate, but to fully understand this reply, one should read both my paper and Read’s critique.