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. Author manuscript; available in PMC: 2012 May 7.
Published in final edited form as: Popul Dev Rev. 2011;37(1):29–56. doi: 10.1111/j.1728-4457.2011.00389.x

FIGURE 1. Happiness and number of children by age.

FIGURE 1

NOTE: Lines connect coefficients from regression models predicting happiness—measured on a linear scale from 1 (not at all happy) to 4 (very happy)—with number of children (0, 1, 2, 3, 4+), controlling for sex, socioeconomic status, income, marital status, country, and year.

■ p<.05 ● p<.10 ○ p≥.10

SOURCE: World Values Surveys 1981–2005, N = 201,988.