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Table 3 Sample selectivity probit estimates of determinants of market participation and market choice

From: Farmgate versus market centre sales: a multi-crop approach

Variable Maize Groundnut
Participation Market choice Participation Market choice
Coefficient Marginal effect Coefficient Marginal effect Coefficient Marginal effect Coefficient Marginal effect
AGE −0.0286a (0.0083) −0.0112 (0.0033) −0.0276a (0.0100) −0.0078 (0.0031) −0.0084 (0.0113) −0.0001 (0.0002) −0.0225b (0.0118) −0.0090 (0.0047)
GEN 0.4470 (0.3950) 0.1768 (0.1543) 0.3923 (0.5025) 0.0972 (0.1093) 0.9459c (0.4832) 0.0245 (0.0348) −0.3017 (0.5086) −0.0953 (0.2041)
EDUC −0.0598b (0.0324) −0.0234 (0.0127) −0.0189 (0.0340) −0.0053 (0.0097) −0.0525 (0.0465) −0.0006 (0.0008) −0.0652 (0.0402) −0.0263 (0.0159)
MARST −0.1022 (0.3474) −0.0397 (0.1342) −0.3323 (0.4172) −0.1021 (0.1399) 0.0662 (0.4888) 0.0008 (0.0060) −0.0961 (0.4390) −0.0374 (0.1742)
HHSIZE −0.1072a (0.0300) −0.0420 (0.0119) 0.0050 (0.0374) 0.0014 (0.0107) −0.0024 (0.0319) −2.59e-05 (0.0003) 0.0765c (0.0335) 0.0302 (0.0131)
YIELD 0.0025a (0.0005) 0.0010 (0.0002) 0.0009c (0.0004) 0.0003 (0.0001) 0.0130a (0.0028) 0.0001 (0.0002) 0.0022b (0.0012) 0.0010 (0.0005)
ACCRE 1.5477a (0.4811) 0.4811 (0.0927) 0.8197a (0.3000) 0.2670 (0.1215) −0.7232 (0.6565) −0.0160 (0.0317) −0.0863 (0.4873) −0.0500 (0.1865)
MKTINFO 0.7481a (0.2730) 0.2905 (0.1024) −0.6561 (0.4191) −0.1962 (0.1355) 0.9187b (0.4937) 0.0295 (0.0428) 0.0875 (0.8415) 0.0640 (0.3269)
MFBO 1.2993 (0.8678) 0.3849 (0.1503) 1.4231c (0.5841) 0.5103 (0.2079) −0.7104 (0.5089) −0.0165 (0.0276) 1.7933a (0.6487) 0.5489 (0.1148)
EXTCON 0.0881 (0.2552) 0.0345 (0.0997) −0.4719b (0.2773) −0.1279 (0.0788) −0.3739 (0.4541) 0.0031 (0.0048) 0.3491 (0.4152) 0.1416 (0.1630)
PRICE    0.7366b (0.4331) 0.2075 (0.0822)    2.7987a (0.5189) 1.1071 (0.1989)
FOS        1.8253a (0.3885) 0.6336 (0.0982)
CONSTANT 0.3104 (0.6962)   −0.2152 (0.9901)   −3.1013a (0.9559)   −5.1517a (1.5237)  
Rho   1.000 (3.86 × 10− 13)    −1.000 (3.40 × 10− 10)  
Number of observations 200 200
Censored observations 103 33
Wald χ 2 39.28a 45.08a
Log likelihood −110.476 −76.0244
Likel. ratio test of ρ χ 2(1) 6.37c 6.61c
  1. Source: Regression estimates from household survey data, 2012. Note: standard errors in parentheses
  2. aAt 1 %
  3. bDenotes statistical significance at 10 %
  4. cAt 5 %