This article reviews Thomas Donaldson and Thomas Dunfee's new book Ties Tha
t Bind. The article argues that the book is a helpful elaboration of Donald
son and Dunfee's Integrative Social Contracts Approach, particularly with r
egard to their specification of hypernorms. The article also presents Donal
dson and Dunfee's argument with regard to how the hypernorm of necessary so
cial efficiency applies to bribery and raises questions about the extent to
which human moral behavior might be hardwired.