Table 2.

Earnings equations: Sibling fixed-effects models of log income at age 29 (2008) on lagged subjective well-being and covariates

	Model 1		Model 2		Model 3		Model 4
Independent variable	Coeff.	P value	Coeff.	P value	Coeff.	P value	Coeff.	P value
Positive affect (1994)	0.060	0.044					0.018	0.575
Positive affect (1996)			0.048	0.110			0.035	0.264
Life satisfaction (2001)					0.062	0.026	0.069	0.015
Positive affect (2008)	0.071	0.010	0.062	0.028	0.066	0.016	0.043	0.132
Male	0.119	0.007	0.135	0.003	0.114	0.009	0.134	0.003
Age	0.129	0.000	0.115	0.000	0.127	0.000	0.115	0.000
College	0.166	0.000	0.176	0.000	0.158	0.643	0.162	0.000
IQ	0.003	0.960	0.018	0.660	0.022	0.573	0.017	0.685
Medication	−0.008	0.772	−0.015	0.582	−0.08	0.753	−0.015	0.586
Height	0.081	0.082	0.081	0.082	0.093	0.042	−0.080	0.087
Self-esteem (1994)	0.033	0.271					0.011	0.737
Self-esteem (1996)			0.035	0.244			0.016	0.610
Self-esteem (2001)					0.061	0.042	0.039	0.179
Intercept	10.14	0.000	10.14	0.000	10.13	0.000	9.981	0.000
N	3,216		3,029		3,217		3,017
R2	0.11		0.13		0.11		0.13

Variable coefficients are standardized, and P values are presented. Variable definitions are in Table S2.