But does the government allowing the man to enter into this implicit contract make him less free?

FORBES: Freedom and the Workplace

Customers buying a handset have an implicit contract that they will be kept as up to date as possible.

FORBES: Denying Windows Phone Users WP 7.8 Is Short-Sighted And Will Weaken Relationships

In America the rise of PhD teachers' unions reflects the breakdown of an implicit contract between universities and PhD students: crummy pay now for a good academic job later.

ECONOMIST: Why doing a PhD is often a waste of time

As Mr Field put it, the 10% ruse violated the implicit contract between the New Labour modernisers and their parliamentary foot-soldiers: look after the needy, the rank-and-file said, and we'll trust you on the rest.

ECONOMIST: Bagehot

The idea of deferred gratification, which is inherent in that implicit pension contract, has been beyond our comprehension.

FORBES: Opinion