On Thursday the ASI published an article I wrote about the Labour leadership election and the concept of Expressive Voting. This theory, developed by Geoffrey Brennan and Loren Lomasky in their book Democracy and Decision: the pure theory of electoral preference, offers a new explanation for the “paradox of voting”, the rationality-defying fact that people vote despite the improbability that their vote will make a difference.
Brennan and Lomasky suggest that individuals do not vote primarily to affect the outcome (which they know they cannot) but to express a preference; indeed, to express themselves. Much as we might shout at a football match on television or curse out loud when on our own, there is something inherent in the human psyche that wishes to express its opinion. What is more, the way in which we express ourselves helps define who we are, and enables us to feel good about ourselves.
As I explained in my article:
The crucial point here is that there is absolutely zero cost to expressing oneself any way one pleases at the ballot box, because one’s vote is hardly likely to matter. For the same reason, the only tangible benefit one is likely to reap from voting is that feeling one gets for choosing “the right” candidate. Vote Labour and you are a caring person; vote Conservative and you are a responsible person; vote UKIP and you are a proud patriot; vote Green and you want to save our planet…
What struck me as I wrote those words was that I could not give a simple reason why people vote Liberal Democrat.