Most problems are best solved privately, not through government. There's a problem of discourtesy in the world, which is best handled through social norms, which are indispensable. But you wouldn't want the government to be mandating courtesy.

Without taxes there would be no property. Sunstein suggests that granting standing to animals actionable by other parties could decrease animal cruelty by increasing the likelihood that animal abuse will be puniCass Sunsteind. Sunstein co-authored Nudge: Improving Decisions about Health Wealth and Happiness (Yale University Press 2008) with economist Richard Thaler of the University of Chicago.

For 27 years Sunstein taught at the University of Chicago Law School. Sunstein is currently the Robert Walmsley University Professor and Felix Frankfurter Professor of Law at Harvard Law School.