Table 4.

Candidate set of generalized estimating equations (GEEs) predicting farm labour in dyads of households (ego–alter pairs) within villages. All models except the intercept-only one controlled for distance between ego and alter households, the number of people living in each household, and their relative wealth rank. ‘Relatedness’ models also include terms for relatedness × distance between households, the presence of partners and children in alter households, and an interaction between relatedness and the presence of children in alter households. See Material and methods for details about the operationalization of other predictors. The best-fitting model (bold) is analysed in the main text.

model	log-likelihood	ΔQIC	weight
relatedness × relative need + relatedness × reciprocity + gifts	−2593.817	0.000	1
relatedness × relative need + reciprocity + gifts	−2618.853	47.498	0
relatedness + reciprocity + relative need + gifts	−2620.735	47.627	0
relatedness + reciprocity + relative need	−2627.013	57.873	0
relatedness + reciprocity	−2632.840	64.050	0
relatedness + relative need + gifts	−2664.148	125.778	0
relatedness + gifts	−2670.361	133.036	0
relatedness + relative need	−2671.040	137.701	0
relatedness	−2676.891	144.163	0
reciprocated help	−3103.617	978.718	0
gifts	−3222.550	1214.000	0
relative need	−3306.860	1381.411	0
control model (distance + HH size + relative wealth)	−3314.098	1392.992	0
intercept-only	−3557.519	1865.631	0