This article begins with a review of the two main textbook approaches that had evolved by the early 1960s to incorporate the musings of Keynes: the Keynesian cross from Samuelson’s (1948) introductory textbook and the complete, well fleshed-out model in Gardner Ackley’s (1961) advanced macro textbook. This Keynesian- neoclassical synthesis followed a pattern set by Hicks (1937) by focusing on certain elements of Keynes, while setting aside others. Some potential weaknesses of the specific...
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