Definition
Forward-looking moral hazard is behavioral distortion in insurance in which agents make decisions before a loss or benefit-triggering event based on anticipated future insurance payoffs — as opposed to contemporaneous moral hazard, which operates through reduced precaution or inflated claims after the event. In the disability insurance context, forward-looking moral hazard occurs when a worker calculates the expected net value of filing a disability claim before or at the onset of a potential disability episode and decides whether to file based on that forward-looking calculation. The key identifying signature is that the behavioral response is income-invariant: if the mechanism were liquidity constraints (inability to wait out a waiting period without income), the deterrence would be disproportionately large for low-income workers. Income-invariance of the deterrence effect supports the forward-looking expected-value interpretation over the liquidity-constraint alternative.
Key Ideas
- Income-invariance test: Under liquidity constraints, low-income workers would be most deterred by longer elimination periods (they cannot afford to go without income during the wait). Under forward-looking moral hazard, all workers make the same expected-value calculation regardless of income, producing equal deterrence across the income distribution. Autor, Duggan, and Gruber (2014) find income-invariance in the elimination period (EP) deterrence effect, supporting the forward-looking mechanism.
- Filing decision timeline: A worker with a new health episode decides early — before recovery or deterioration becomes certain — whether to file a claim. Under a long elimination period, the expected benefit of filing equals (probability spell lasts past EP) × (expected benefit conditional on duration). If this expected value falls below filing costs, the worker does not file — and this calculation occurs before the episode resolves.
- Distinction from ex post moral hazard: Ex post moral hazard inflates the severity or duration of a claim already in progress (e.g., a worker malingers or understates recovery). Forward-looking moral hazard operates on the filing decision itself, before any benefit is received.
- Connection to the Elimination Period: The EP functions as a deductible that shifts the cost-benefit calculus of filing. A longer EP raises the expected cost of filing (the waiting period without benefit) while the expected benefit (spell duration × replacement rate) is unchanged for a given impairment severity. Workers with shorter expected spells are disproportionately deterred — a selection mechanism that improves the severity composition of claimants. See Elimination Period.
Why It Matters
- Plan design: Insurers and policymakers can use the elimination period to screen out short-duration claims (both via mechanical censoring and via forward-looking deterrence) without directly observing severity at the filing stage.
- Welfare implications: Forward-looking deterrence is efficient if workers with short expected spells have low welfare costs from non-filing (they recover quickly). It is inefficient if those workers bear significant consumption costs during the uninsured waiting period.
- SSDI reform: The forward-looking mechanism supports proposals (Autor-Duggan 2010) to introduce a mandatory long-term disability (LTD) waiting period before Social Security Disability Insurance (SSDI) entry — such a waiting period would deter forward-looking applicants with high work capacity while allowing genuinely severely disabled workers to access SSDI after demonstrating persistent inability to work.
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