After my apocalyptic forecasts for 2012 in last month's column, I thought that we should shun the real world a little and look at some theories - but theories that have definite application in everyday life.
It has struck me recently that we are all stuck in a variety of games: from the Euro debt crisis, to trying to maximise the selling price of cement, from being married to the same person for decades, to deciding to pay - or not pay - your taxes. Many of these situations can be described using 'game theory,' perhaps better termed 'interactive decision theory.' This branch of mathematics (and philosophy and biology) can suggest the optimum strategies to follow in order to maximise your outcome or the outcome of everyone in the game - the two situations not always being the same.


