Model

Variable

I

II

Random Partners (P)

(=1, =0 otherwise)

−4.540

(4.373)

[0.299]

896.554

(55.343)

[0.000]

Exogenous Index (X)

24.165

(6.342)

[0.000]

−257.803

(101.283)

[0.011]

Endogenous Index (N)

−109.565

(45.133)

[0.015]

Interaction of Exogenous & Endogenous Indices (XxN)

330.856

(122.816)

[0.007]

Interaction of Exogenous Index &

Random Partners (XxP)

33.058

(17.873)

[0.064]

−4094.601

(199.928)

[0.000]

Interaction of Endogenous Index &

Random Partners (NxP)

−1391.977

(76.869)

[0.000]

Interaction of Endogenous &

Exogenous Indices & Random Partners (XxNxP)

6327.811

(283.799)

[0.000]

Social Value Orientation

(slope of resultant vector)

−1.019

(0.484)

[0.035]

−0.533

(0.626)

[0.394]

Risk Averse

(=1, =0 otherwise)

1.509

(0.734)

[0.040]

3.183

(0.700)

[0.000]

Risk Seeking

(=1, =0 otherwise)

0.353

(0.706)

[0.617]

−2.871

(1.013)

[0.005]

Constant

(Pro Self, Risk Neutral, Fixed Partners)

−8.850

(2.290)

[0.000]

83.944

(36.754)

[0.022]

Pseudo R-squared

p-value for χ2-test on Model Significance

0.513

0.000

0.768

0.000