Figure 1.
The master matrix (see Text S1) produced a directed and weighted network.
Edge thickness reflects link weight (strength of relationship) and arrows show direction. Female participants are represented by closed circles, male participants by open circles.
Figure 2.
Links between one participant (number 6) and her chosen recipients.
Participant number is given within the node and link weights shown numerically alongside links.
Figure 3.
Effects of out-link strength and in- minus out-link on cooperative investment.
Point size reflects standardised time squatted: white points show actual data, grey point is for reference only and corresponds to a standardised time of 1 Participants suffered a higher cost for recipients to whom they had declared a strong social link (p<0.001) and who had declared a a stronger social link to them (in-link minus out-link, p = 0.001).
Table 1.
Results of MRQAP using a) master matrix and b) components of master matrix.