Simulation layers

Each design layer requires a unique name, a bare CSV data_file, and an integer event_year. Add description only when it gives useful information beyond the name.

One layer

schema_version: 1
layers:
  - name: Productivity improvement
    data_file: productivity_improvement.csv
    event_year: 2026

Several cumulative layers

schema_version: 1
layers:
  - name: Energy efficiency improvement
    data_file: energy_efficiency.csv
    event_year: 2026
  - name: Investment adjustment
    data_file: investment_adjustment.csv
    event_year: 2027
    description: Adjustment to sector investment parameters
  - name: Monetary-policy response
    data_file: monetary_policy_response.csv
    event_year: 2028

G-Cubed applies all three layers. A later layer builds on the projections produced after earlier layers.

How values enter the layer

The design does not specify the year-by-year shock values. Either maintain the CSV directly or generate it from setup shock projections.

Layer order and event years