Can money buy happiness? Since the invention of money, or nearly enough, people have been telling one another that it can’t. Philosophers and gurus, holy books and self-help manuals have all warned of the futility of equating material gain with true well-being.Modern research generally backs them up. Psychologists and economists have found that while money does matter to your sense of happiness, it doesn’t matter that much. Beyond the point at which people have enough to comfortably feed, clothe, and house themselves, having more money - even a lot more money - makes them only a little bit happier. So...