Do High-Speed Rail Projects Increase Happiness?

According to a recent study involving a sample of 28,646 Chinese people, high-speed rail projects were found to increase individual happiness, albeit not by much. An anonymous reader shares an excerpt from a Motherboard article: It can increase happiness, especially for people who live in regional capitals, rural areas, men and the elderly, but only by an increase of .076 on the happiness scale of one to five. To put it another way, as the study does, "The coefficient accounts for 1.997 percent