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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

From: Urban green space and happiness in developed countries

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