Table 1.

Default parameter values for the ARM

Description	Default value
Number of actors	$N=100$
Number of ideological dimensions	$D=1$
Mean and SD of actors’ initial normal
distribution along an ideological
dimension	$\left(0.5,0.2\right)$
Exposure, the degree to which actors interact
with dissimilar points of view expressed as the
halving distance	$E=0.1$
Tolerance, the distance within which
interactions are attractive and beyond which
interactions are repulsive	$T=0.25$
Responsiveness, the fractional distance an
actor’s ideological position moves as a result
of an interaction	$R=0.25$