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Table 6 Premium (WTP) for the iron bean variety in Guatemala (Ordinary least square model (OLS) results)

From: Consumer acceptance of an iron bean variety in Northwest Guatemala: the role of information and repeated messaging

Dependent variable: WTP premium Treatment effect Variable order effect Interaction variables effect Socioeconomic variables effect Socioeconomic and interaction variables effect
Information once 0.150 (0.115) 0.164 (0.116)   0.267* (0.136)  
Information repetition 0.081 (0.115) 0.067 (0.116)   0.105 (0.121)  
Variety delivery order   −0.080 (0.098)    
Men x information once    0.135 (0.190)   0.368 (0.238)
Men x Information repetition    0.174 (0.168)   0.384* (0.222)
IRI x Information once    −0.130 (0.094)   −0.124 (0.098)
IRI x Information repetition    −0.091 (0.069)   −0.081 (0.073)
Education x Information once    0.001 (0.024)   −0.015 (0.026)
Education x Information repetition    −0.001 (0.025)   −0.018 (0.027)
Variety delivery order x information once    0.206 (0.145)   0.208 (0.152)
Variety delivery order x information repetition    0.009 (0.170)   0.007 (0.174)
Male     0.037 (0.107) −0.243 (0.154)
Age     −0.009** (0.004) −0.009** (0.004)
Area planted with beans in 2013     0.000* (0.000) 0.000* (0.000)
Produce bean frequently     0.024 (0.097) 0.007 (0.099)
Among of bean stored at home     0.004 (0.003) 0.004 (0.003)
Purchase bean frequently     0.275*** (0.100)  
Consume beans frequently     −0.016 (0.029) −0.016 (0.030)
Poverty Index     0.312* (0.173) 0.255 (0.175)
Food Frecuency Index     0.028 (0.019) 0.023 (0.020)
Monthly expenses     −0.000 (0.000) −0.000 (0.000)
Have met any people in the community     0.010 (0.043) 0.003 (0.044)
Having heard about iron in food     −0.296** (0.126) −0.152 (0.125)
_cons 0.140* (0.081) 0.179* (0.094) 0.218*** (0.069) 0.067 (0.278) 0.358 (0.279)
N 359 359 359 359 359
R2 0.005 0.007 0.018 0.063 0.067
R2 Adj. −0.001 −0.002 −0.004 0.028 0.019
Prob>F 0.425 0.498 0.592 0.040 0.239
Breusch-Pagan Cook-Weisberg test (Prob>chi2) 0.60 0.85 0.65 0.000 0.001
White test (Prob>chi2) 0.47 0.67 0.99 0.834 0.839
Test of Ramsey (Prob>F) 0.28 0.37 0.172 0.831