It follows, first, that oxytocin leads individuals to ignore out-groups as long as out-group behavior is not relevant to the in-group and, second, that oxytocin contributes to creating and enforcing in-group norms of cooperation and trust.
"There has been no change in department policy toward enforcing artist-in-residence requirements," said Carly Sullivan, a Buildings Department spokeswoman.
So this unpredictability can be leveraged, in fact, in dealing, enforcing, or in pushing North Korea and Assad, to change their calculous.
Recent publications include "Two Economic Theories of Enforcing Promises," in Readings in the Theory of Contract, and "Do Trade Customs Exist?" in The Jurisprudential Foundations of Corporate and Commercial Law, both published by Cambridge University Press.
Rekha Nigam, a screenplay writer and television boss in Mumbai, suggests that enforcing order in the family is a mother-in-law's way of aligning herself "on the side of patriarchy".
