Forest Ecosystems

Table 3 Probit estimates and marginal effects of willingness to participate in carbon market

From: South Carolina forestland owners’ willingness to accept compensations for carbon sequestration

Variable	Restricted Model		Unrestricted Model
Variable	Coeff. (Std. Err.)	Marg. Eff. (Std. Err.)	Coeff. (Std. Err.)	Marg. Eff. (Std. Err.)
Bid	0.007 (0.003)^b	0.003 (0.001)^b	0.008 (0.003)^b	0.003 (0.001)^b
Paris	−0.03 (0.13)	−0.01 (0.05)	0.01 (0.14)	0.004 (0.05)
Forestland	0.000004 (0.00001)	0.000002 (0.000005)	0.0000003 (0.00001)	0.0000001 (0.000005)
Easement	0.001 (0.15)	0.0005 (0.06)	−0.009 (0.16)	− 0.003 (0.06)
Ecosystems2	−0.37 (0.15)^b	− 0.14 (0.06)^b	− 0.41 (0.15)^a	−0.16 (0.06)^a
Ecosystems3	−0.57 (0.19)^a	−0.22 (0.07)^a	− 0.55 (0.20)^a	−0.21 (0.08)^a
Ecosystems4	−0.98 (0.33)^a	−0.38 (0.13)^a	− 0.87 (0.38)^b	−0.34 (0.14)^b
Scientist2			−0.11 (0.16)	−0.04 (0.06)
Scientist3			−0.06 (0.24)	−0.02 (0.09)
Scientist4			−0.88 (0.46)^c	−0.34 (0.18)^c
Government2			−0.30 (0.27)	−0.12 (0.10)
Government3			−0.42 (0.28)	−0.16 (0.11)
Government4			−0.60 (0.31)^c	−0.23 (0.12)^c
Gender	0.32 (0.18)^c	0.12 (0.07)^c	0.33 (0.19)^c	0.13 (0.07)^c
Education	−0.007 (0.03)	−0.003 (0.01)	− 0.02 (0.04)	−0.008 (0.01)
Income	0.000001 (0.000001)	0.0000005 (0.0000004)	0.000002 (0.000001)	0.0000006 (0.0000004)
Constant	−0.50 (0.61)		0.12 (0.68)
Log likelihood	− 257.51		− 241.13
Chi2	26.77^a		41.13^a
Mean WTA ($)	68.80		66.94
Median WTA ($)	70.51		63.68
Obs.	401		387

Note: ^a is significance at the 1% level, ^b is significance at the 5% level, ^c is significance at the 10% level. The omitted variable categories are: Ecosystems1, Scientist1, and Government1

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