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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 %