Third Party Redux
Posted by
tgirsch
Let’s try this another way.
Suppose you’re stuck in an all-day meeting with twelve other people. Lunch is going to be brought in, and they’ve offered up four choices: Papa John’s Pizza, Subway Subs, P.F. Chang’s, or Taco Bell.
Papa John’s and Taco Bell aren’t your favorite, but you could live with either one of them. What you really want is P.F. Chang’s — it’s your favorite. And you absolutely despise Subway.
The problem is, they’re going to bring in food for everyone from just one of those places. They’re going to vote by secret ballot, and you only get one vote.
Asking around, you learn that five people are strongly in favor of Papa John’s, and five more are strongly in favor of Subway. The other two are split between Taco Bell and Chang’s.
So in this scenario, what do you do? Do you vote for Chang’s because that’s what you want, even though it has no chance of winning, and even though this increases the likelihood of you having to eat Subway, which you hate? Or do you vote for Papa John’s (effectively voting against Subway), and take a less-than-ideal lunch that you nevertheless don’t mind instead of having to suffer through Subway?