Fig. 1.

Agricultural support network in Pucucanchita. Arrows indicate the direction of aid. Node size is proportional to the total reputation score. The reciprocity of the network is 0.52 in terms of the proportion of dyads that are reciprocal and is 0.68 in terms of the proportion of arcs (ties) that are reciprocated. Households with the greatest degree of network centrality are closer to the center of the graph. The two circles in the upper left hand corner represent isolates, households that did not give or receive agricultural support during the time frame of this study.