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Risk of ruin and catastrophic risk (Existenzrisiko)

Level 2 · Foundations
German termExistenzrisiko
Read firstExpected value · Consumption floor
Used byOver-insurance · Occupational disability insurance (BU) · Personal liability insurance · Long-term-care gap
Deep divesPrivathaftpflicht, BU & Co: Insurance Overview in Germany

Risk of ruin is the possibility that a loss pushes a household below its consumption floor and prevents recovery. Probability alone does not define it. A rare liability claim, permanent loss of earning capacity, or uninsured medical obligation can matter more than frequent small losses because the household cannot absorb the severity from cash flow or savings.

The catastrophe filter​

For each risk, ask:

  1. What is the plausible severe loss, not only the average loss?
  2. Which income, legal liability, housing, or care need would it disrupt?
  3. Can savings absorb it without destroying the emergency reserve or long-term plan?
  4. Can the household rebuild afterward?
  5. Which party already covers part of it: social insurance, employer, contract, or another policy?

Expected loss is not enough​

Assume a 0.2% annual chance of a €500,000 uncovered liability. The expected monetary loss is:

0.2% × €500,000 = €1,000 per year

That €1,000 does not describe household survivability. A household with €30,000 liquid wealth cannot self-fund the severe outcome. By contrast, a 20% chance of a €300 phone loss has a €60 expected loss but does not normally threaten the consumption floor.

Insurance prioritization therefore combines probability, severity, existing cover, premium, exclusions, and recovery capacity. The deep article surfaced by ConceptMeta applies this filter to essential cover.

Check yourself​

A loss has a 0.2% annual probability and €500,000 severity. What is its expected monetary loss in euros?

Which risk has greater ruin potential for a household with €30,000 liquid wealth?

Why is expected loss insufficient for catastrophe screening?

Which belong in the catastrophe filter? Select all that apply.

Sources​

  1. Verbraucherzentrale — Welche Versicherung brauche ich? Prioritising existential risks, https://www.verbraucherzentrale.de/wissen/geld-versicherungen/weitere-versicherungen/welche-versicherung-brauche-ich-12605 (2025)
  2. BaFin — Insurers’ conduct of business: contracts must meet customer needs, https://www.bafin.de/SharedDocs/Veroeffentlichungen/EN/Fachartikel/2018/fa_bj_1812_Marktverhalten_VU_en.html (2019)