Another Opening, Another Show

January 22, 2014
Posted by Jay Livingston

My first class of the semester is tomorrow.  I’ll begin, as usual, with Durkheim and suicide and rates of behavior as social facts.  Rates, I’ll remind the students, are made up of individual cases.  That’s basic skills math.  But those rates, unlike the individual cases, have a strange constancy. If 42,000 people in the US killed themselves last year, the number for this year will be close to 42,000.  Why?   It can’t be the same people.

I’ve been teaching this for years, yet I still find it eerie.

More important, I will tell the class, the ideas that explain individual cases don’t work so well in explaining the rate that those cases add up to. It’s very likely that people who commit suicide are less happy than those who don’t. But does happiness explain suicide rates?

International suicide rates are not hard to find.  Now, fortunately, we have international data on happiness – The World Happiness Report.

So I put together a simple scatterplot of European countries (I added the US since I thought the locals here might be curious to see where we stand.)

The overall correlation is about –0.24. More happiness, less suicide, but only slightly less. Sad and suicidal Hungary is the hero for the happiness hypothesis.  Remove Hungary and the correlation drops to –0.15. As for the rest, those northern, social-democratic countries (Iceland, Finland, Sweden, Netherlands, in addition to the ones identified in the chart) may be the happiest, but their rates of suicide are not noticeably lower than those of less happy countries like Bulgaria.  (What’s up with Bulgaria anyway?)

OK. Now that we’ve put those individual-level ideas in their place, let’s spend the next couple of months doing sociology.