This paper is the first to examine collusion at the extensive margin (whereby firms collude...

This paper is the first to provide a general context whereby potential entry can lead...

Pure strategy Bertrand Nash equilibria do not typically exist for a number of simple market...

In a number of simple settings there do not exist Nash equilibria, to the Bertrand...

This paper employs an elementary bargaining model to characterise the consequences of increasing labour market...

A model of illicit, addictive drug use is proposed when users have foresight. Impacts of...