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Table 2 Maximum likelihood estimates of technical inefficiency determinants

From: Analysis of technical efficiency of small holder wheat-growing farmers of Jamma district, Ethiopia

Variables Coefficients SE Z-value
Constant 0.4428*** 0.135 3.28
Sex 0.039 0.029 1.34
Age − 0.014** 0.007 − 2.00
Household size − 0.047 0.083 − 0.57
Education − 0.238*** 0.075 − 3.17
Farm size 0.076*** 0.026 2.92
Improved seed − 0.109*** 0.019 − 5.74
Off/non-farm income 0.001 0.006 0.167
Training − 0.327* 0.193 − 1.69
Credit − 0.165** 0.075 − 2.20
Extension contact − 0.001 0.015 − 0.067
Land fragmentation 0.075 0.165 0.45
Distance to wheat field 0.031 0.023 1.34
TLU 0.0089 0.010 0.89
Log likelihood − 47.31   
Total sample size 149   
  1. *; **; ***Represents significant at 10%, 5% and 1% probability level, respectively