Scenarios Mark0COVID

Default scenarios reproduce the four endogenous-crisis regimes from Gualdi, Tarzia, Zamponi, Bouchaud (2015), “Tipping points in macroeconomic agent-based models”, obtained by varying the hiring/firing rate \(R\) and default threshold \(\Theta\) through the additive-shock channel:

• Scenario.0 (baseline): Full employment — \(R = 2,\, \Theta = 2\) (no shocks).

• Scenario.1: Endogenous crises (oscillatory) — \(R = 0.5,\, \Theta = 3\) via HiringFiringRate_add = -1.5, DefaultThreshold_add = +1.0.

• Scenario.2: Unstable (slow decay to high-U) — \(R = 1.5,\, \Theta = 4\) via HiringFiringRate_add = -0.5, DefaultThreshold_add = +2.0.

• Scenario.3: Full collapse — \(R = 0.5,\, \Theta = 6\) via HiringFiringRate_add = -1.5, DefaultThreshold_add = +4.0.

All scenarios are implemented in macrostat.models.Mark0COVID.scenarios.ScenariosMark0COVID.