Delayed Monsoon Onset Index Contract Architecture

In Simple Words

Imagine a commuter buying a train delay guarantee instead of a general monthly travel refund. Rather than waiting until the end of the year to count total late trains, the guarantee pays out immediately if the train fails to arrive by 8:00 AM, 8:15 AM, or 8:30 AM on a workday morning. Because the passenger gets cash right when they need to hire a taxi, they can still make it to work on time without suffering a ruined day.

Research question

Traditional agricultural insurance relies on costly individual crop loss assessments or overall seasonal rainfall totals, which fail to protect against time-sensitive liquidity crises during early crop establishment. Designing contracts tied to specific cumulative rainfall milestones ("trigger dates") ensures automatic, transparent payouts when monsoon arrival is delayed, aligning indemnification with critical agricultural calendar phases.

Participants

4,667 households across 42 randomized villages in Andhra Pradesh, Uttar Pradesh, and Tamil Nadu, India.

Study Design

Randomized controlled trial evaluating a multi-stage weather index contract with three trigger dates (15, 20, or 25 days of delayed onset) based on 30–40mm rainfall accumulation thresholds.

Results

Payouts ranged from Rs. 300 (15-day delay) to Rs. 1,200 (25-day delay) per unit; 14–15% of the sample households experienced qualified payouts across 4 Andhra Pradesh villages during the 2011 Kharif season.

Takeaway

Structure weather index insurance contracts around phase-specific cumulative rainfall thresholds rather than seasonal totals to provide timely liquidity during planting and germination shocks.

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Plain-English glossary

Original explanations, informed by the references below. Examples are illustrations, not data from the studies above. The research text stays unchanged.

Randomized controlled trial

A study that uses chance, like drawing lots, to decide who receives each option being compared. Researchers compare the groups’ outcomes to estimate the effect of those options.

ExampleA lottery assigns volunteers to a training programme or a comparison group. Researchers then compare their outcomes.

GET-IT glossary · Randomized study ↗Read more about randomized controlled trial →

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