---
title: "Economic value-based solvency regulation"
aliases:
  - "economic-value-based-solvency"
  - "経済価値ベースのソルベンシー規制"
  - "economic value-based solvency"
domain: "insurance"
created: 2026-05-19
last_updated: 2026-05-19
last_tended: 2026-05-19
review_by: 2026-11-15
confidence: likely
tags: [insurance, solvency, regulation, FSA, ESR]
status: active
sources:
  - "https://www.fsa.go.jp/policy/economic_value-based_solvency/index.html"
  - "https://www.fsa.go.jp/common/law/guide/ins/"
  - "https://www.fsa.go.jp/common/law/guide/ins/02b.html"
  - "https://www.fsa.go.jp/common/law/guide/ins/02c.html"
---

# Economic value-based solvency regulation

## TL;DR

Japan's economic value-based solvency regime is the insurance-capital framework that looks through the accounting balance sheet and evaluates assets, liabilities, capital, and risk on a more market-consistent economic basis. FSA frames the regime around three pillars: solvency regulation, insurer risk management, and disclosure to policyholders / market participants.

For FinWiki, this page is the regulatory-capital anchor for insurer pages such as [[life-insurers/dai-ichi-life]], [[life-insurers/nippon-life]], [[non-life-insurers/tokio-marine]], [[non-life-insurers/msad]], and [[non-life-insurers/sompo]]. Use [[insurance/esr-economic-value-solvency|ESR]] for company-level ratio interpretation.

## Regime Map

| Layer | What changes | Why it matters |
|---|---|---|
| Balance-sheet view | Insurance assets and liabilities are assessed on an economic-value basis rather than only book-accounting values. | Long-duration guarantees and market risk become more visible. |
| Capital adequacy | Required capital is tied to risk profile, including interest-rate, market, insurance, and operational risks. | Insurers with duration mismatch or high market exposure face clearer capital pressure. |
| Risk management | FSA's insurance supervision guideline already requires integrated risk management and ORSA-style risk / solvency self-assessment. | Regulation becomes a management system, not only a reported ratio. |
| Disclosure | Market participants and policyholders receive more comparable solvency information. | Investor analysis can compare life and non-life groups on a more consistent capital basis. |

## JapanFG Relevance

- [[life-insurers/dai-ichi-life|Dai-ichi Life]] is the cleanest equity-market case because it is a listed life-insurance holding company; capital policy, buybacks, M&A capacity, and ESR disclosure are directly investable.
- [[life-insurers/nippon-life|Nippon Life]] is the largest mutual-company case; economic solvency affects capital strategy, policyholder dividend capacity, and overseas M&A room even without listed equity.
- [[non-life-insurers/tokio-marine|Tokio Marine]], [[non-life-insurers/msad|MS&AD]], and [[non-life-insurers/sompo|SOMPO]] matter because natural-catastrophe risk, overseas specialty insurance, and equity holdings can materially affect capital volatility.
- [[financial-licenses/INDEX|JapanFG legal / financial licenses]] should treat this as the solvency and prudential-supervision lane under the Insurance Business Act.

## Decision Use

Use this page when asking:

- whether an insurer's balance sheet is exposed to interest-rate / market-value shocks;
- whether dividends, buybacks, or M&A are constrained by regulatory capital;
- whether a mutual insurer can keep long-term policyholder returns while funding overseas expansion;
- whether a non-life group has enough capital against typhoon, flood, earthquake, and overseas catastrophe exposure.

## Boundary

This page is not a legal opinion and does not itself prove a company is well capitalized. For company-level analysis, verify the latest disclosed ESR / solvency margin, the insurer's own definition of eligible capital, and any FSA transition measures.

## Related

- [[insurance/INDEX|insurance INDEX]]
- [[insurance/esr-economic-value-solvency]]
- [[insurance/natcat-reinsurance-japan]]
- [[financial-licenses/INDEX]]
- [[INDEX|FinWiki index]]

## Sources

- FSA: 経済価値ベースのソルベンシー規制等について.
- FSA: 保険会社向けの総合的な監督指針.
- FSA: 監督指針 II-2 財務の健全性 and II-3 統合的リスク管理態勢.