An associate professor of economics at Yale wrote a very interesting paper (PDF) in which he compares good future-driven behaviors with not speaking a future-aware language. He noted the distinction between languages that have a strong future-time reference (FTR) requirement and ones that have a weak one: for example, English ranks as a strong FTR language because the language changes significantly when talking about the future (“It will be cold tomorrow”) compared to talking about the present (“It is cold today”). Contrast that with Finnish, which barely changes to account for the future: “Tomorrow be cold” vs “Today be cold.”
Most languages have a strong FTR: all Romance ones, most Slavic, Turkic, Iranian, etc. The language families that tend to have weak FTRs are Germanic, Chinese, Japanese and Sundic. (English, while a Germanic language, has been so heavily influenced by Latin and French that it has a strong FTR — the only other Germanic language besides Afrikaans to do so.)
The paper then compares this language trait with data that indicates a concern for the future: savings accounts, heavy smoking, physical activity, obesity. The idea being that if you smoke a pack a day, have 47$ in your bank account, spend your weekends on the couch and ate a cheesecake for dinner last night, you probably aren’t too concerned about the future. It turned out that speakers of languages with weak FTRs (like the Germans and Japanese) are a lot better about future-oriented behaviors:
Weak-FTR speakers are 30% more likely to have saved in any given year, and have accumulated an additional 170 thousand Euros by retirement. I also examine non-monetary measures such as health behaviors and long-run health. I find that by retirement, weak-FTR speakers are in better health by numerous measures: they are 24% less likely to have smoked heavily, are 29% more likely to be physically active, and are 13% less likely to be medically obese.
So there is correlation between how much a language emphasizes the distinction between present and future and how much speakers of that language prepare for the future. This is evident in the current economic situation in Europe: Germany (weak FTR) has to bail out Greece, Spain and Italy (strong FTRs). The author’s hypothesis is that speakers of languages like Finnish, in which present and future are pretty much treated the same, are more aware of the future because to them the future is now — so they tend to smoke less and save more. Whereas the French see the future as this far-off thing, so they smoke more and save less.
But is there also a causation between language and behavior? That’s a much harder question to answer: it could be that the language influences behavior, and it’s pretty unlikely that behavior influences language — people would have to migrate on a scale that’s probably a lot larger than observed. But it could also be that a third factor, like culture, influenced the way the languages developed, as well as the behavior. If, thousands of years ago, the Germans as a people were concerned about the future, maybe they didn’t care to make the distinction between present and future, but cared to save their gold. The author himself notes that it appears that language and culture both independently influence future-driven behavior, and that language doesn’t directly cause that behavior, but that it may affect it through an intermediary.