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View Full Version : Pigs Don't Fly: The Economic Way of Thinking about Politics




Bradley in DC
12-05-2007, 07:40 AM
http://www.econlib.org/library/Columns/y2007/Robertspolitics.html

Pigs Don't Fly

Politicians are just like the rest of us. They find it hard to do the right thing. They claim to have principles, but when their principles clash with what is expedient, they often find a way to justify their self-interest. If they sacrifice what is noble or ideal for personal gain, they are sure to explain that is was all for the children, or the environment or at least for the good of society.

Pigs don't fly. Politicians, being mere mortals like the rest of us, respond to incentives. They're a mixture of selfless and selfish and when the incentives push them to do the wrong thing, albeit the self-interested one, why should we ever be surprised? Why should be fooled by their professions of principle, their claims of devotion to the public interest?

We call politicians our representatives and they often claim to be fighting for us. But when we think about it, we understand that our interests are diverse and that no politician can really fight for all of us. Inevitably, our interests and desires clash and politicians are forced to choose between the general interest and the special interest. Which wins?

The answer depends on the constraints facing the politicians. So politicians in a system with meaningful elections and competition are more likely to pursue policies that please the general public. Dictators have more range to pursue their own self-interest at the expense of the people. The Logic of Political Survival, by Bruce Bueno de Mesquita, Alastair Smith, Randolph Siverson and Jame Morrow, looks at how the level of electoral accountability affects political outcomes. Bueno de Mesquita discusses the intuition behind the theories in the book in this EconTalk podcast.


For better or worse, it is an unavoidable reality that even when politicians are constrained by real or potential competition, they still have wiggle room for pursuing their own self-interest because the level of knowledge among the electorate is imperfect. The electorate can be misinformed. Or rationally ignorant. It's costly for voters to be well-informed. That gives politicians, even in a democracy, the chance to pursue special interests at the expense of the general interest.