Incentives can be found everywhere--in schools, businesses, factories, and government--influencing people's choices about almost everything, from financial decisions and tobacco use to exercise and child rearing. So long as people have a choice, incentives seem innocuous. But Strings Attached demonstrates that when incentives are viewed as a kind of power rather than as a form of exchange, many ethical questions arise: How do incentives affect character and institutional culture? Can incentives be manipulative or exploitative, even if people are free to refuse them? What are the...