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 of the mean of happiness." This is statistically significant, in the strict definition of whether results are due to chance, and therefore a publishable scientific finding. But it is hardly meaningful in terms of how much high speed rail influences the happiness of Chinese people. I mean, come on. Two measly percent? In the "policy implications" section, the study authors pose a tantalizing question: "What is the significance of economic growth if it cannot effectively improve residents' happiness?" While the two percent happiness finding may be marginal, they're at least asking the right questions.

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