Before revision: Thaler and Sunstein published Nudge, a book-length defense of this political doctrine, in 2008 (new edition 2009 ).Thaler, R.H. and Sunstein, C.R.
After revision: Thaler and Sunstein published Nudge, a book-length defense of this political doctrine, in 2008 (new edition 2021 ).Thaler, R.H. and Sunstein, C.R.