Methodology

Incentive-driven weekly mapping

Saker Index constructs a weekly Escalation Risk Score (ERS 0–100) by mapping actor incentives and weighting costly signals over cheap talk. Full write-up: “The Saker Index: Incentive-Driven Weekly Mapping of Geopolitical Escalation” (Zenodo DOI).

Frame Weekly observation window

ERS is scored on a fixed weekly window, not a continuous tick feed. The goal is a comparable mid-horizon read for desks that sit between live terminals and long-form reports: what changed in incentives and costly behavior this week, and what that implies for the next window.

Window cut-off declared with each brief.
Material events after cut-off noted as out-of-window, not silently folded in.
Cadence favors structured comparability over minute-level refresh.

Signals Costly vs cheap

Not all open-source noise is equal. The method privileges costly signals — actions that burn resources, reveal commitment, or change the feasible set — over cheap signals such as rhetoric, unverified claims, or social amplification without physical or institutional follow-through.

Costly examples: force posture shifts, logistics moves, sanctions enforcement, capital deployment, verified kinetic activity.
Cheap examples: unbacked threats, recycled talking points, engagement farming without operational cost.
Ambiguous signals are flagged; they do not silently dominate the score.

Actors Incentive maps

For each theater or corridor, the brief maps relevant actors and their near-term incentives: what they gain or lose from escalation, restraint, or ambiguity in the window. Dominant strategies are inferred from the incentive structure plus observed costly moves — not from narrative alone.

Building blocks — communication summary of the preprint

OSINT

Open-source intake

Documented, time-stamped inputs; preference for verifiable physical and institutional traces.

Cost

Signal cost filter

Weight toward moves that are expensive to fake or reverse within the weekly frame.

Map

Actor incentives

Payoffs and constraints for primary actors in the theater or corridor.

ERS

Score 0–100

Composite escalation risk for the window, with scenario notes for the next week.

Output ERS and scenarios

The Escalation Risk Score is reported on a 0–100 scale per theater or conflict corridor. Accompanying notes outline plausible paths that would raise or lower ERS in the following weekly window. Site samples labeled illustrative are for communication only.

Primary distribution: weekly briefs on Substack.
Citable method: Zenodo preprint doi.org/10.5281/zenodo.18923012.
No claim on this site that ERS accuracy or backtests are proven operational fact.

Limitations

Every score is a simplification. Incomplete OSINT, deception, and sudden exogenous shocks can break weekly assumptions. Use ERS as a structured starting point for human judgment — not as a trading signal, insurance quote, or sole input to risk limits.

Citation

Please cite the preprint: The Saker Index: Incentive-Driven Weekly Mapping of Geopolitical Escalation. https://doi.org/10.5281/zenodo.18923012.