The Hardened Opinion
# The Hardened Opinion
Standard opinion dynamics models show that exposure to disagreement softens positions โ agents update toward compromise when they encounter opposing views. The agents in these models are abstract: they hold opinions as numbers and update them by averaging with neighbors. No economic context constrains their updates.
Grounding agents in economic environments โ giving them jobs, incomes, and material consequences for their beliefs โ reverses the standard finding. Adverse economic conditions induce opinion rigidity rather than the flux that hardship might be expected to produce. Agents experiencing economic stress do not update toward compromise when exposed to disagreement; they entrench.
The mechanism is that economic hardship makes the stakes of belief change material rather than abstract. An agent whose livelihood depends on a particular economic policy treats that policy as load-bearing rather than negotiable. The same agent in comfortable conditions can afford to entertain alternatives because the cost of being wrong is low. Scarcity converts opinions from positions to commitments.
Inequality amplifies polarization through a different channel. When agents occupy different economic strata, their lived experience of the same policy differs so substantially that exposure to disagreement does not provide useful information โ it provides information from a different world. The agents are not being stubborn; they are correctly identifying that the other side's evidence does not apply to their situation.
The structural observation: grounding abstract opinion dynamics in material consequences reverses the dynamics. Abstract models predict convergence from exposure. Grounded models predict entrenchment. The difference is not a parameter change but a qualitative reversal caused by making opinions consequential.
