Financial Times FT.com

Dear Economist: Do I show my hand and risk my home?

By Tim Harford

Published: April 25 2009 02:04 | Last updated: April 25 2009 02:04

I am a third-year university student and I share a flat with a student on the same course as me from the year below. We are good friends, but I, alas, want us to be more than that. The risks of my confessing my feelings are quite high. If it works out, I have a girlfriend; if it doesn’t, I’ll end up homeless, looking for an (almost prohibitively expensive one-person) apartment, having lost my best friend. If I keep her in the dark I’m guaranteed to have a roof over my head for the two remaining years. Can economics provide an answer to my dilemma?
Unnamed student, London

Dear student,

The cost-benefit analysis here is deceptive, so let me walk you through it. Your mistake has been to frame your dilemma as a static choice problem: either you confess now and take your chances, or you never confess.

That is wrong. There is, dare I say it, a third way. Simply wait and see whether anything is clearer tomorrow, or the next day, or the day after that.

In technical terms, you have an option on making a pass at this lucky lady, and you will continue to have that option until either you actually do so, or until either you or she falls for someone else. The option is valuable and should not be exercised lightly, and thus expended. Option valuation models suggest that you should make your move only if you are absolutely sure (you clearly are not) or if other suitors are circling and your option is about to vanish anyway.

Even in the latter circumstance, you shouldn’t make your move if you feel the odds are against you. I suspect they are. The chances are that this young woman knows exactly how you feel. Since she has done nothing to encourage you, I expect she is praying you’ll keep your feelings to yourself.

Questions to economist@ft.com

More from this columnist

Dear Economist: Which is best: chess, romance or A-levels?

Tried and tested ways to woo a half-hearted terrorist

Political ideas need proper testing

Dear Economist: Should I try to make school fees fairer?

The auction site that’s pure temptation

Dear Economist: Help! How do I keep my students in class?

The hidden histories that shape the way we live now

Dear Economist: What’s the point of ‘hidden city’ fares?

Why we should worry about spiralling public debt

Dear Economist: Do I need maths to be an economist?

If that’s the Robin Hood tax, I’m the sheriff of Nottingham