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Table 3 Models 1 and 2—factors influencing WTP for beef with reduced environmental impact

From: Sustainable intensification of beef production in Colombia—Chances for product differentiation and price premiums

 Model 1. Logit regressionModel 2. Linear regression
VariablesDescriptionPAYMORE †LOG_HOWMUCH ‡
Coef.Robust SECoef.Robust SE
EDUCAverage years of schooling0.17***0.0620.036**0.016
STRATAHousehold strata (1–6).0.0710.2370.0870.053
PREFBEEF1=respondent prefers beef over other meat alternatives− 0.632*0.373− 0.324***0.110
AGEIn years− 0.3430.418− 0.008**0.003
GENDER1=female, 0=male− 0.0060.0130.1060.107
PCINCOMEMonthly per capita income in thousand COP§0.0000.0010.235*0.128
PCINCOMESQMonthly per capita income in thousand COP (squared)§0.0000.000− 0.000**0.000
CONST. − 0.5401.110− 0.534*0.280
Observations 164 115 
F (7, 107)   8.68 
Prob > F   0 
R2   0.250 
Root MSE   0.558 
Wald chi2 (7) 15.61   
Prob > chi2 0.029   
Pseudo R2 0.082   
  1. ***p < 0.01, **p < 0.05 and *p < 0.1, respectively
  2. PAYMORE = 1 if respondent declares to be willing to pay more for beef with reduced environmental impact
  3. LOG_HOWMUCH = logarithm of declared WTP for beef with reduced environmental impact in thousand COP
  4. §USD 1 = COP 2879.86