Scenario Modelling
Testing how different assumptions about turnout and swing change the outcome.
Short answer
What is Scenario Modelling?
Scenario modelling projects election outcomes under explicitly stated assumptions — a turnout surge in a segment, a late alliance, a three-way split — allowing a campaign to compare strategic options against arithmetic rather than intuition.
Definition
Scenario modelling projects election outcomes under explicitly stated assumptions — a turnout surge in a segment, a late alliance, a three-way split — allowing a campaign to compare strategic options against arithmetic rather than intuition.
Why It Matters
Modelling does not remove uncertainty; it makes assumptions explicit and testable. Its real value is sensitivity analysis, which identifies the small number of variables that actually decide the seat.
Example in Indian Elections
Modelling a triangular contest may show that the result is far more sensitive to base consolidation than to persuasion, which redirects the entire campaign plan.
Related Terms
- Vote ShareThe percentage of total valid votes polled that a candidate or party receives.
- SwingThe change in vote share between two elections, measuring movement of support.
- Stratified SamplingDividing a population into groups and sampling proportionately from each.
- Turnout PropensityThe modelled likelihood that a given voter will actually vote.
- Cross-TabulationBreaking survey results down by demographic or behavioural subgroups.
- Sampling Error / Margin of ErrorThe uncertainty inherent in estimating a population from a sample.