『Give and Take』要約

In Give and Take, Adam Grant argues that professional success hinges less on talent or hard work than on how we treat other people, dividing workers into three reciprocity styles: givers, takers, and matchers. Drawing on his own research as an organizational psychologist, Grant shows that givers, who contribute to others without expecting anything in return, occupy both the bottom and the top of success metrics, while takers and matchers cluster in the middle. Grant explains the paradox through the concept of the "otherish" giver, and through "givers, takers, and matchers" as distinct interaction styles that shape reputation, networks, and influence. He reports evidence from studies and real cases: a medical student named Adam Rifkin? No—Grant profiles figures such as David Hornik, a venture capitalist who gives away introductions and time; and he cites research on “givers” in settings like medical school, where the least successful students were givers who were exploited, versus “otherish” givers who sustained success. The book also explores "matchers" who keep score, and "takers" who self-promote. Grant introduces specific ideas like "giver fatigue," "the power of powerless communication," and "chump change" versus long-term gains. He describes the "five-minute favor" as a way to help others cheaply. He discusses "dormant ties" for job searches. He analyzes "selfless givers" who burn out, and "otherish givers" who set boundaries. He uses examples like the “giver” surgeon, and the “taker” in the classroom. The conclusion is that giving, when done strategically and not to the point of self-sacrifice, can build reputations, trust, and networks that pay off over time.