Labour leader Ed Milliband hit the headlines this week with his plans to freeze energy prices if elected into power in the 2015 UK general election. The response was pretty fervent. But can a price cap work? The microeconomics textbook says that price caps are almost always a bad idea. To understand why it is interesting to see how labour defended the plan. Or, more properly, I should say how labour did not defend the plan. When questioned about the merits of the price freeze every shadow minister I heard reeled off a long list of reasons why the energy market is failing. What I never heard once was a minister argue that the price freeze will solve any of the market failures. And that's the problem, a price freeze will not solve any of the market failures! It will just make them worse. For example, I heard several spokespmen bemoan the fact the market is dominated by only six firms. Put aside for the moment that six firms is more than enough for competition to work, will a
Some random thoughts on game theory, behavioural economics, and human behaviour