Following Jaffe's 1976 argument, the effort to de-homogenize Jevons, W
alras, and Menger may have obscured some key similarities between Jevo
ns and Menger. The article argues that Jevons's view of human behavior
is more complex than has been allowed, and has much in common with Me
nger's predisposition for process, uncertainty, mistakes, and the sign
ificance of time in decision making. Some of the key features of the M
engerian economic being, features that have often been used to portray
him as the ''odd man out'' among the triumvirate, also characterize J
evons's decision makers. For both Menger and Jevons, the decision make
r is plagued by error, indecision, and information gaps.