Sometimes I see the first symptoms; partners not wearing their wedding band and giving a pretend-unmarried face to the world and their colleagues. When in reality they are very married. Or people sending mixed signals: no wedding band, but frequent mention of their partner. Unless the person is affiliated to a culture that doesn’t know the ring as a symbol – I don’t trust the wedding-band shirkers, also in matters unrelated to marriage.

So today’s column is about staying faithful. More precisely, about how to resist the temptation to the contrary. Our recommendations are inspired by recent research from a team of international sociologists, and actually apply to various areas of life:

1. You can successfully say ‘No’ to temptation most of the time. Among common daily temptations (not necessarily for relationships, but for example for ice cream, internet surfing etc), people fail to resist only 17% of the time.
2. But beware: self-control tires out. Resistance is a depleting reservoir. Failure occurs after many successful attempts to fend off temptation.  The main recommendation coming out of this is the next point:
3. The best strategy to resist temptations is to avoid them altogether. In this way, you do not have to use your weakening resistance muscle, and can keep it ready for the unavoidable temptation. Faithful people work mainly by avoiding temptation, not by fighting it.
4. Alcohol not only weakens resistance but actually makes temptation stronger. Stay away from alcohol and other mind-altering drugs. Also,…
5. Stay away from people who yield to the temptations you want to avoid. Watching others succumb to a temptation makes you more likely to do the same. I guess, in the case of infidelity, which always involves two, this argument is even stronger: if you are around people who are ready to be unfaithful, it is more likely to happen to you.  – So, switch workplace, sports club or other circles if they have a high density of cheaters.

how early in a relationship should you expect, or give in to, sex? I hear so many views on this topic that I am quite confused. Most guys want it as early as possible, and by the third date at the latest. Many dating gurus advise to wait – but not on how long. The only advice on timing comes from several world religions, which promote waiting until marriage. But how can this work in the modern world of dating? There seem to be no rules. – Now, do economists have a view on this?

Grateful for any light in this confusion, Yours, Katja

Dear Katja,

thanks for giving us an opportunity to answer this awesome question. We hear it a lot in conversation and counseling practice, but few people dare debate it online in a serious manner.

Yes – economists do have an opinion. A clear one, and empirically founded one. You should wait – for as long as you need a clear head to decide if the guy is the right one for you, and deserves your trust. (The question to you is then: what is ‘the right one’? If you are looking for someone to marry, then, yep, waiting until marriage is a good idea.)

Because after sex, the clear head will be gone and you will trust blindly. We owe this insight to a team of experimental economists at the University of Zurich. They tested the effect of oxytocin (the hormone women emit during orgasm, and also childbirth) on people’s judgment in an investment game. While the testees could still calculate well, they started to behave more trustingly and thereby opened themselves up to abuse.

Now, while it’s a good idea that mum and baby are bonded in blind trust, it may not be quite so useful in a dating relationship. Imagine you are high on oxytocin with someone that for some reason does not deserve your full trust. You risk being mucked about without even noticing.

You will say, great, but how can I ‘wait for sex’ in practice? My friends will think I’ve gone nuts.

First, your friends’ (or the majority’s) opinion should not come before your own wellbeing. Second, those who agree with the above (e.g. many world religions) have figured out all sorts of ways to delay sex until a time when it’s right. My favorite books on the matter haven been written by ladies who tested both worlds (waiting and not waiting)and then made their own conscious choice, Dawn Eden and  Wendy Shalit. You can save yourself your own trial-and-error by just reading about theirs.

Hope this works for you! Do check back in.

Best wishes,

Dr de Bergerac