Table 2. Social Discount Parameters of urban and rural groups.

Model	Region	Mean Fit	Fitted Parameters
Hyperbolic Model	urban	r² = .9912; X² = 3.6397	k = 0.07410; V = 144.2071
Hyperbolic Model	rural	r2 = .9931; X2 = .5925	k = 0.04390; V = 132.0377