Table 7.

Sign-up 20: Estimated Marginal Effects on Bidss

State	CRD	Number of Offers	Proportion of Bids at Their Maximum	LogL.	Constant	Maximum Rental Rate	Proportion of County in CRP	Environmental EBI Score^a	PP	PP × EBI Interaction Term
IA	1950	672	0.190	− 226.4	6.430	0.537^***	30.571	2.308^***	3.09^**	1.628^***
					(4.894)	(0.029)	(30.402)	(0.298)	(1.436)	(0.553)
IA	1940	611	0.308	− 1,742.2	6.251^*	0.477^***	− 90.404^***	1.966^***	2.009	0.065
					(3.604)	(0.027)	(15.759)	(0.262)	(1.437)	(0.817)
IA	1910	375	0.160	− 1,350.3	24.078^***	0.432^***	− 193.718^*	2.331^***	− 2.316	3.311^***
					(7.797)	(0.046)	(104.273)	(0.539)	(1.878)	(1.047)
MN	2750	653	0.498	− 1,383.8	5.281^***	0.349^***	− 26.848^***	0.585^***	2.064^***	0.337
					(1.186)	(0.02)	(10.126)	(0.16)	(0.583)	(0.338)
MN	2740	762	0.392	− 1,758.2	2.73^***	0.448^***	− 18.259^**	0.508^***	2.696^**	1.089^*
					(1.557)	(0.017)	(8.068)	(0.149)	(1.205)	(0.627)
MN	2710	1,076	0.571	− 1,838.8	12.07^***	0.275^***	— 24.5^***	0.008	− 2.326^**	− 2.158
					(1.25)	(0.019)	(1.61)	(0.098)	(0.961)	(1.51)
MT	3050	189	0.931	—		Cannot be estimated; all offers where PP = 1 are censored.
MT	3030	481	0.848	− 313.9	1.17^*	0.103^***	− 3.185^**	0.071	0.475^***	− 0.137
					(0.627)	(0.021)	(1.39)	(0.044)	(0.105)	(0.102)
ND	3890	478	0.856	− 326.9	0.628^*	0.112^***	0.780	0.097^**	0.259	0.046
					(0.378)	(0.016)	(1.835)	(0.044)	(0.213)	(0.152)
ND	3860	332	0.886	− 191.4	0.001	0.092^***	1.910	0.047	0.791^***	− 0.295^*
					(0.528)	(0.018)	(1.487)	(0.055)	(0.233)	(0.17)
ND	3830	569	0.671	− 788.8	2.945^***	0.16^***	− 8.594^***	0.384^***	2.85^***	− 0.612^*
					(0.755)	(0.021)	(2.461)	(0.106)	(0.362)	(0.356)
ND	3840	339	0.779	− 294.3	1.667^***	0.148^***	1.500	0.079	0.189	− 0.31^***
					(0.497)	(0.026)	(5.63)	(0.056)	(0.275)	(0.117)
ND	3880	274	0.799	− 210.0	1.173^***	0.097^***	— 17.4^***	0.037	1.091^***	0.271^***
					(0.419)	(0.027)	(3.22)	(0.034)	(0.188)	(0.076)

Note: Standard errors are in parentheses. Marginal effects evaluated at the mean of the variables. CRD, crop reporting district; CRP, Conservation Reserve Program; EBI, Environmental Benefits Index; IA, Iowa; MN, Minnesota; MT, Montana; ND, North Dakota.
↵a The environmental EBI score excludes the priority-area points for factor N6 and cost-factor points.
↵* Significance at the 10% level;
↵** significance at the 5% level;
↵*** significance at the 1% level.