Table 1.

The regression analysis for the UGS, happiness and log-GDP. The values denote the regression coefficients and the confidence intervals of each independent variable with its significance (i.e., ^∗∗∗$p<0.01$; ^∗∗$p<0.05$; ^∗$p<0.1$). The regression model (1-3), model (4-6) and model (7-9) are examined for the data of all countries, the lower 30 countries and the top 30 countries ranked by GDP, respectively

Countries	All			Lower 30			Top 30
Model	(1)	(2)	(3)	(4)	(5)	(6)	(7)	(8)	(9)
log-GDP	1.0120∗∗∗	–	1.1319∗∗∗	0.9034∗∗	–	0.8517∗	−0.0809	–	0.2581
	(0.6603)		(0.6234)	(1.6305)		(1.7493)	(1.3559)		(1.0314)
UGS	–	0.1165	0.2249∗∗∗	–	0.1497	0.0567	–	0.2785∗∗∗	0.2946∗∗∗
		(0.3545)	(0.2643)		(0.6042)	(0.6051)		(0.2313)	(0.2403)
Const	−4.2945∗∗	5.9007∗∗∗	−6.4709∗∗∗	−3.3428	5.1767∗∗∗	−3.0629	7.7712∗∗	5.8110∗∗∗	2.9312
	(6.9672)	(1.4910)	(6.8998)	(16.5490)	(2.6490)	(17.1094)	(14.8065)	(0.9455)	(11.5463)
Adjusted $R^2$	0.3832	0.00123	0.4786	0.1296	0.0012	0.1013	−0.0335	0.4457	0.4468
Observations	60	60	60	30	30	30	30	30	30