In retail markets, competition among firms happens “locally”. But what is the right way to define the local geographic market?

In retail markets competition among firms happens “locally”. But what is the right way to define the local geographic market? Using a natural experiment involving petrol stations on Greek islands and…

Can entire markets strategically confuse consumers to raise prices? This column tracks the prices of nearly all mobile phone tariffs and handsets in the UK from 2010 to 2012, and finds that quality-ad...

Why book publishing contradicts conventional wisdom about competition.