Estimated coefficients of covariates related to social contagion. Each panel shows the means (circle) and 95% confidence intervals (line) for 200 network realizations, stacked horizontally and ordered by increasing means for better readability. The left column (A, C, E and G) are estimated coefficients for the likelihood of negative sentiment expression, the right column (B, D, F and H) are estimated coefficients for the likelihood of positive sentiment expression. The vertical dotted line is positioned at an estimated coefficient of zero (i.e. no effect). The percentage numbers in the top left corner of each panel indicate what fraction of the network realizations yielded statistically significant positive (green) or negative (red) coefficient estimates.