Table 5. Random effects Tobit estimation of individual extraction (standard error in parentheses)

Variable Model 1 -
limited open access
Model 2 -
regulation
Constant (default is Session 1) 1.60
(2.89)
11.46***
(2.63)
Age (years) 0.03
(0.11)
-0.32***
(0.09)
Age squared -0.00002
(0.001)
0.003**
(0.001)
Education (years of formal schooling) 0.08
(0.13)
-0.16
(0.12)
Male 0.99
(0.86)
0.44
(0.78)
Fishers’ organization 0.73
(0.79)
-0.57
(0.71)
Community organization 0.41
(0.59)
0.06
(0.54)
Number of days fishing per week -0.06
(0.17)
-0.18
(0.16)
Agreement -0.23
(0.49)
0.50
(0.45)
Knowledge of seasonal restrictions 0.60
(0.58)
-1.12**
(0.53)
Dummy Session 2 2.88**
(1.24)
-0.67
(1.12)
Dummy Session 3 2.74**
(1.11)
-0.28
(1.02)
Round 0.07**
(0.03)
0.08***
(0.02)
Fixed effects by groups (not reported) 14 14
Rho 0.26 0.42
Prob > χ2 0.37 0.00
N 730 706
Note: The dependent variable is the individual’s harvest (1–9, inclusive). For regulation, we do not include participants in the round in which they were forced to extract one unit.
*** denotes p < 0.01; ** denotes p < 0.05; * denotes p < 0.10