Can Money Buy Happiness?

Ah, one of the oldest philosophical problems and many fine movies have made this topic so alive (The Little Poor Rich Girl by Shirley Temple come immediately)

If money buys happiness then it worth to go through all the hard work to get money. If not, then why so many people continue to spend most of their time to get money which has little effect on happiness.

There has been numerous studies (click here for wide array of it) on happiness and income. Easterlin is one of the earliest economist to go through happiness data (from self declare dataset) and found paradox of happiness. People with same amount of money tend to be happier in poor country, but happiness don’t increase over time with economic growth. Is it possible that it is relative income having more impact to happiness instead of absolute income?

A global study of Sexual Attitudes and Behaviours by Pfizer in 2002 seems to be an odd way to study the relation but please bear with me for a while. It has more than 27 000 respondents from 28 countries with fascinating questions. (yup, sometime I have too much available time)

Three of them will be used in this mini study (How happy have you been with your life in the past year? How physically pleasurable did you find your relationship with your partner to be in the past year? How would you rate your overall health?) The numbers are in percentage of population stating they in moderate/good/very good (answer 3-5 in a scale of 5). Quite interesting to know that Indonesian has the highest number (98%) for question number two with Japan as the lowest (57 %).

I pair the data set with average income per capita of each country for that year, adjusted for cost of living or as purchasing power parity (PPP) in economic jargon so it is comparable across countries. Then I set up a log liner regression model with happiness as dependant variable and income, health and physical relationship as independent variable.

Before going to the result, some caveats need to be address (especially for economists and econometricians out there). There are some issue on subjective data, not that subjects intentionally being untruthful but they may have recalled problem. Some studies found that when asked about the past subjects tend to put emphasis on the extreme than average. Furthermore, I only got the average percentage of each question not the complete panel so the result is not as robust as when I can get the income of all participants. But as Donald Rumsfeld would say, you do regression with the data you have and not the data you want (hey, this is not my PhD dissertation).

I found that income has no effect what so ever on happiness (P value = 0.4472). On the other hand, health is has significant effect. (P value = 0.0140) and one percent increase of population that satisfied with their health correspond to 21,4 % increase in happiness. What about the last variable? The significant level jump to the roof (P value = 0.0001) and one percent increase in population satisfied with their physical relationship correspond to 39.58 % in happiness.

Hmm.. More study certainly is needed. If government want to increase people’s welfare, should it put more emphasis on *ahem* quality of life aspects than the usual investment/productivity/industrialization? So if you have been feeling unhappy lately despite all the material achievement, relax a bit and listen to the old tune by Rolling Stones:

I can't get no satisfaction

I can't get no satisfaction

'Cause I try and I try and I try and I try

I can't get no, I can't get no