COMSCI/ECON 206 · Computational Microeconomics

Who Pays to Know?

Strategic Information Acquisition Before AI Collective Decisions

Two agents independently choose Research or Skip. Research creates shared information value V, but the researcher pays private cost c.

Model inputs

Choose V and c

Formal game

Payoff matrix

Each cell is (Agent A payoff, Agent B payoff).

A \ BResearchSkip
Research
Skip

Strategic outcome

Equilibrium analysis

Pure Nash equilibria

Symmetric mixed equilibrium

Best responses

Why free-riding appears

If B researches

If B skips

This is a formal model result, not observed behavior.

Cost sensitivity

Mixed-strategy benchmark

For 0 < c < V, p(Research)=1-c/V.

Three interdisciplinary lenses

Economics

Private cost + shared benefit · Free-riding · Best responses · Nash equilibrium

Computation

Payoff matrix · Algorithmic checks · Verified baseline · Cost sensitivity

Behavior

Beliefs · Bounded strategic reasoning · Future empirical comparison

PLANNED / NOT YET TESTED

Evidence status

Verified in this project

  • Formal payoff model
  • Pure-equilibrium computation
  • NashPy baseline comparison
  • Mixed-equilibrium derivation
  • Cost sweep
  • Automated tests

Not tested

  • Human behavior
  • LLM-agent behavior
  • Educational effectiveness

Open research artifacts