13. Experience versus evaluation of happiness: Baumeister, Vohs, et al. 2013; Helliwell, Layard, & Sachs 2016; Kahneman 2011; Veenhoven 2010.
14. Context-sensitivity of ratings happiness versus satisfaction versus good life: Deaton 2011; Helliwell, Layard, & Sachs 2016; Veenhoven 2010. Just average them: Helliwell, Layard, & Sachs 2016; Kelley & Evans 2016; Stevenson & Wolfers 2009.
15. Helliwell, Layard, & Sachs 2016, p. 4, table 2.1, pp. 16, 18.
16.
17. Adaptive function of happiness: Pinker 1997/2009, chap. 6. Different adaptive functions of happiness and meaningfulness: R. Baumeister, “The Meanings of Life,”
18. Percent happy: cited in Ipsos 2016; see also Veenhoven 2010. Average ladder placement: 5.4 on a 1–10 scale, Helliwell, Layard, & Sachs 2016, p. 3.
19. Happiness gap: Ipsos 2016.
20. Money does buy happiness: Deaton 2013; Helliwell, Layard, & Sachs 2016; Inglehart et al. 2008; Stevenson & Wolfers 2008a; Roser 2017.
21. Independence of happiness and inequality: Kelley & Evans 2016.
22. Helliwell, Layard, & Sachs 2016, pp. 12–13.
23. Winning the lottery: Stephens-Davidowitz 2017, p. 229.
24. National happiness increases over time: Sacks, Stevenson, & Wolfers 2012; Stevenson & Wolfers 2008a; Stokes 2007; Veenhoven 2010; Roser 2017.
25. World Values Survey shows increasing happiness: Inglehart et al. 2008.
26. Happiness, health, and freedom: Helliwell, Layard, & Sachs 2016; Inglehart et al. 2008; Veenhoven 2010.
27. Culture and happiness: Inglehart et al. 2008.
28. Non-monetary contributors to happiness: Helliwell, Layard, & Sachs 2016.
29. American happiness: Deaton 2011; Helliwell, Layard, & Sachs 2016; Inglehart et al. 2008; Sacks, Stevenson, & Wolfers 2012; Smith, Son, & Schapiro 2015.
30.
31. American happiness: A fall and rise is seen in the World Database of Happiness (Veenhoven undated), which includes data from the World Values Survey; see the online appendix to Inglehart et al. 2008. A slight decline is seen in the General Social Survey (gss.norc.org); see Smith, Son, & Schapiro 2015 and figure 18-4 in this chapter, which plots the “Very happy” trend.
32. Restriction of range in American happiness: Deaton 2011.
33. Inequality as part of the explanation for the American happiness stagnation: Sacks, Stevenson, & Wolfers 2012.
34. America as a happiness trend outlier: Inglehart et al. 2008; Sacks, Stevenson, & Wolfers 2012.
35. African American happiness increase: Stevenson & Wolfers 2009; Twenge, Sherman, & Lyubomirsky 2016.
36. Declining female happiness: Stevenson & Wolfers 2009.
37. Distinguishing age, period, and cohort: Costa & McCrae 1982; Smith 2008.
38. Older people are happier overall: Deaton 2011; Smith, Son, & Schapiro 2015; Sutin et al. 2013.
39. Dips in middle age and in the final years: Bardo, Lynch, & Land, 2017; Fukuda 2013.
40. Great Recession trough: Bardo, Lynch, & Land 2017.
41. Each successive cohort happier through the Baby Boomers: Sutin et al. 2013.
42. Gen X and Millennials happier than Baby Boomers: Bardo, Lynch, & Land 2017; Fukuda 2013; Stevenson & Wolfers 2009; Twenge, Sherman, & Lyubomirsky 2016.
43. Loneliness, longevity, and health: Susan Pinker 2014.
44. Both quotes are from Fischer 2011, p. 110.
45. Fischer 2011, p. 114. See also Susan Pinker 2014, for a judicious analysis of the changes and constancies.
46. Fischer 2011, p. 114. Fischer cites “a few sources of social support” in full awareness of a highly publicized 2006 report which announced that from 1985 to 2004 Americans reported a third fewer people with whom they could discuss important matters, with a quarter of them saying they had no one at all. He concluded that the result was an artifact of the survey methods: Fischer 2006.
47. Fischer 2011, p. 112.
48. Hampton, Rainie, et al. 2015.
49. Connectedness of social media users: Hampton, Goulet, et al. 2011.
50. Stress in social media users: Hampton, Rainie, et al. 2015.
51. Changes and constancies in social interaction: Fischer 2005, 2011; Susan Pinker 2014.
52. Suicide rates depend on availability of methods: Miller, Azrael, & Barber 2012; Thomas & Gunnell 2010.
53. Risk factors for suicide: Ortiz-Ospina, Lee, & Roser 2016; World Health Organization 2016d.
54. Happiness-suicide paradox: Daly et al. 2010.