Envy is almost universally condemned and feared. But is its bad reputation always warranted? In this book, Sara Protasi argues that envy is more multifaceted than it seems, and that some varieties of it can be productive and even virtuous. Protasi brings together empirical evidence and philosophical research to generate a novel view according to which there are four kinds of envy: emulative, inert, aggressive, and spiteful. For each kind, she individuates different situational antecedents,...

Envy is a vicious and shameful response to the good fortune of others, one that ruins friendships and plagues societies—or so the common thinking goes, shaped by millennia of religious and cultural condemnation. Envy’s bad reputation is not completely unwarranted; envy can indeed motivate malicious and counterproductive behavior and may strain or even tear apart relations between people. However, that is not always the case. Investigating the complex nature of this emotion reveals that it ...