Cooperation in a common pool resource game: Strategic behavior and a sense of intimacy

Figures & data

Table 1. Results of panel data analysis for differences in the average individual contributions

Comparison with the Nash equilibrium level	Estimated difference
PF	−1.819*
SF	0.700*
PN	0.402
SN	0.154
PF versus PN	−2.221*
SF versus SN	0.546

* Significance at the 1% level.

Figure 1. Average individual investment pattern for each treatment.

Figure 2. Interaction effect between the two controls on average individual investments.

Figure 3. Frequency distribution of individual investments for each treatment.

Note: Investment numbers smaller than seven have never been chosen in any treatment.