People are intuitive economists under the right conditions

[Commentary on Boyer & Petersen. (2018). Folk-economic beliefs: An evolutionary cognitive model. Behavioral and Brain Sciences.] Boyer and Petersen argue that a "rudimentary exchange psychology" is responsible for many of people’s folk-economic beliefs that are at odds with the consensus views of economists. However, they focus primarily on macroeconomic beliefs. I argue that the same rudimentary exchange psychology could be expected to produce fairly accurate microeconomic intuitions. Existing evidence supports this prediction.