Production, consumption, and market supply of edible crickets: insights from East Africa

Agricultural and Food Economics

Table 3 Results of the probit and outcome equations of the Heckman two-step sample selection model of cricket farming

Independent variables	Probit		Outcome
Independent variables	dy/dx	SE	dy/dx	SE
Age of household head (log)	− 0.214	0.145	0.773*	0.467
Formal Education	− 0.008	0.013	− 0.071*	0.039
Household Size (log)	0.084	0.089	0.545**	0.260
Annual income (log)	0.038	0.039	0.312**	0.126
Distance to main road (log)	− 0.024***	0.007	− 0.053***	0.017
Credit access (1 = yes)	0.003	0.043	0.225*	0.117
Group membership (1 = yes)	0.220**	0.078	0.319	0.309
Insect consumption (1 = Yes)	0.362**	0.071
Production starter kit provided (1 = yes)	0.526***	0.176
Constant	2.051	3.598	− 1.957	2.308
Inverse mills ratio (λ)			− 0.548**	0.227
Number of observations	301
Censored observations	92
Uncensored observations	209
Wald test χ² (8)	39.89
Probability χ²	0.000***

dy/dx: marginal effects; SE: Standard error. The variables age, household size and annual income were logarithmically transformed. The dependent variable in the selection equation (probit) is = 1 if the respondent adopted cricket farming after receiving training and = 0 if otherwise. The dependent variable in the outcome equation is the cricket yield in kilograms for households that adopted cricket farming. Level of significance: *10%, **5%, ***1%