Why an Insurer Needs an Assessment of Its Own Solvency
A standardized capital result can provide a consistent measure under a prescribed basis. It cannot, on its own, tell an insurer whether that basis adequately reflects the insurer’s particular circumstances, how its solvency might change, or what management should understand about the result. An insurer needs an assessment that is grounded in its own business, risks, assumptions, and capacity to respond.
That is the purpose of an Own Risk and Solvency Assessment, commonly abbreviated ORSA. “Own” is important: the insurer is responsible for understanding and evaluating its solvency, even when it uses external models or receives regulatory capital calculations. The assessment is not simply a number produced by a formula, nor is it the same thing as a standardized capital result.
The definition concerns the assessment’s purpose and ownership, not a single required calculation. An ORSA may use capital measures, scenarios, projections, qualitative analysis, or other relevant evidence. Its central task is to help the insurer understand its own solvency position—not merely to reproduce a prescribed capital output.
ORSA and a Standardized Capital Result
A standardized capital result is calculated on a defined basis, often using prescribed methods, assumptions, or risk factors. That common basis can support consistent measurement across insurers. The result answers a question framed by that basis; it does not necessarily answer every question the insurer needs to ask about its own solvency.
An ORSA takes the insurer’s perspective. It asks whether the assessment is meaningful for the particular insurer and its circumstances. For example, the insurer may need to understand how a hypothetical adverse event could affect both its available capital and the capital it would need. It may also need to explain the assumptions and limitations underlying its assessment. These considerations do not turn the ORSA into a different standardized formula.
| Feature | Standardized capital result | ORSA |
|---|---|---|
| Primary purpose | Measure capital on a defined, common basis | Assess the insurer’s own risks and solvency |
| Basis | Prescribed methods or assumptions may apply | Informed by the insurer’s circumstances and analysis |
| Interpretation | A result under its stated basis | A reasoned assessment, which may use multiple forms of evidence |
| Ownership | May be calculated using external or prescribed methods | Responsibility for the assessment remains with the insurer |
The measures can inform one another. A standardized capital result may be an important input to an ORSA, but it is not a substitute for the insurer’s own assessment. Conversely, an ORSA does not make a standardized result irrelevant: the result can still serve its intended measurement purpose.
Why a Single Capital Ratio Is Not the Whole Assessment
A common summary measure is a capital coverage ratio: available capital divided by a capital requirement. The ratio is useful only when its numerator and denominator are clearly defined and measured on a consistent basis. It summarizes a relationship at a specified time and under specified assumptions. By itself, it does not describe how that relationship could change under a different set of conditions.
The reason is straightforward. Let initial available capital be \(C_0\) and the initial requirement be \(R_0\). If a hypothetical adverse event reduces capital by \(L\) and increases the requirement by \(K\), then the resulting ratio is:
The initial ratio \(C_0/R_0\) does not specify \(L\) or \(K\). Two insurers with the same initial ratio can therefore have different resulting ratios if their capital losses or requirement changes differ. This is why an insurer-owned assessment cannot be reduced to reporting the initial standardized result.
This argument does not establish one universal way to conduct an ORSA. It explains why a single standardized ratio cannot, by itself, answer the broader question of what the insurer understands about its own solvency. The insurer must interpret the result within the scope of its assessment.
Worked Example: Moving From a Standardized Result to an Own Assessment
A hypothetical insurer reports available capital of $180 million and a standardized capital requirement of $120 million. For an internal scenario, it estimates that an adverse event would reduce available capital by $35 million and increase the relevant requirement by $10 million. Calculate both ratios and explain what the comparison does and does not show.
Method. Calculate each ratio using the stated numerator and denominator. The scenario calculation changes both values; it is not a recalculation of the initial result on an unchanged basis.
Initial standardized ratio. Divide $180 million by $120 million:
Scenario capital. Subtract the $35 million capital reduction from $180 million:
Scenario requirement. Add the $10 million increase to $120 million:
Scenario ratio. Divide $145 million by $130 million:
The initial ratio is 150%, while the scenario ratio is 111.5% (rounded to one decimal place). The calculation illustrates how a hypothetical event could affect the capital relationship. It does not establish that the scenario is complete, that the assumptions are appropriate, or that the insurer’s overall assessment is adequate; those are matters for the insurer to evaluate.
Check. After the stated changes, capital is $145 million and the requirement is $130 million. Since $145 million divided by $130 million is approximately 1.115, the scenario ratio is 111.5%.
Common mistake avoided: Keeping the denominator at $120 million would give \(145/120=120.8\%\), but that ignores the stated $10 million increase in the requirement. The corrected scenario calculation uses both changed values.
Same Standardized Ratio, Different Solvency Implications
A ratio can be identical for two insurers even when their responses to a hypothetical event differ. The ratio does not reveal the amount or pattern of the change in either its numerator or denominator. An ORSA is insurer-owned in part because the insurer must assess what its own evidence and analysis imply, rather than treating a common starting ratio as a complete description.
Worked Example: Comparing Two Insurers With the Same Starting Ratio
Two hypothetical insurers each have available capital of $300 million and a standardized capital requirement of $200 million. In an internal scenario, Insurer A estimates a $30 million reduction in capital and a $20 million increase in its requirement. Insurer B estimates a $75 million reduction in capital and a $30 million increase in its requirement. Calculate both initial and scenario ratios.
Method. First calculate each starting ratio. Then apply each insurer’s stated changes separately to capital and requirement.
Starting ratios. For each insurer:
Insurer A. Its scenario capital is \(300-30=270\) million dollars. Its scenario requirement is \(200+20=220\) million dollars. Therefore:
Insurer B. Its scenario capital is \(300-75=225\) million dollars. Its scenario requirement is \(200+30=230\) million dollars. Therefore:
Both insurers start at 150%, but the stated scenario produces ratios of 122.7% and 97.8%, respectively. This does not prove that either scenario is the correct one or that the results alone determine solvency. It demonstrates that the common starting result does not contain all the insurer-specific information needed to describe the scenario outcomes.
Check. Insurer A’s numerator and denominator are $270 million and $220 million; Insurer B’s are $225 million and $230 million. The calculated ratios match those inputs.
Common mistake avoided: Concluding that equal standardized ratios imply equal solvency assessments. The ratios are equal only at the starting point; the hypothetical changes are different.
Ownership Is About Accountability, Not Who Runs the Model
An insurer may rely on models, data, consultants, or other external support. Using those resources does not transfer ownership of the assessment. The insurer remains responsible for understanding what an output represents, whether it is relevant to the assessment, and what limitations matter to its interpretation.
Nor does “own” mean that an insurer can choose any assumptions it prefers and call the result an ORSA. A useful assessment needs a reasoned basis and clear distinctions between different measures. In particular, an insurer should not present a value calculated on one basis as if it were directly interchangeable with a value calculated on another basis.
Worked Example: Interpreting an External Model Output
A hypothetical insurer has $160 million of available capital. An external model reports a standardized requirement of $96 million. The insurer also develops an internal hypothetical scenario that reduces available capital by $30 million and increases its scenario requirement by $12 million from the same $96 million starting value. Calculate the standardized ratio and scenario ratio, then identify the ownership issue.
Method. Calculate the ratios using their stated bases, and distinguish the model output from the insurer’s assessment of the scenario.
Standardized ratio.
Scenario values. Available capital after the $30 million reduction is \(160-30=130\) million dollars. The scenario requirement is \(96+12=108\) million dollars.
Scenario ratio.
The external model’s standardized ratio is 166.7%, while the stated scenario ratio is 120.4%. The insurer’s ownership responsibility is not met merely by receiving the model’s 166.7% output. It must understand and evaluate how that output is used in its assessment and how the scenario calculation is interpreted.
Check. The scenario numerator is $130 million and its denominator is $108 million; their quotient is approximately 1.2037, or 120.4%.
Common mistake avoided: Treating the $12 million scenario increase as a universal adjustment to the standardized result. The calculation above uses it only within the stated hypothetical scenario; it does not redefine the standardized requirement.
Common Interpretation Traps
- Calling the standardized result the ORSA. A standardized result may inform an ORSA, but a calculation alone does not demonstrate that the insurer has assessed its own risks and solvency.
- Assuming one ratio tells the whole story. The ratio is a summary under stated definitions and assumptions. It does not, by itself, show how capital or the requirement may change in a scenario.
- Confusing ownership with calculation. An external party can produce an output; accountability for the insurer’s assessment remains with the insurer.
- Combining numbers from different bases without explanation. A comparison is meaningful only when the measures and assumptions are identified. Do not label a scenario result as though it were the standardized result.
- Assuming every jurisdiction uses identical ORSA requirements. The general purpose is an insurer’s own assessment, but formal expectations vary by jurisdiction.
Check Your Understanding
For each hypothetical case, distinguish the standardized result from the insurer’s own assessment. Ratios are rounded to one decimal place.
- An insurer has $210 million of available capital and a standardized requirement of $140 million. Calculate its standardized ratio. Does that ratio, by itself, establish that an ORSA has been completed? (Answer: 150.0%; no, a ratio alone is not the insurer’s assessment.)
- An insurer starts with $240 million of capital and a $160 million requirement. A hypothetical scenario reduces capital by $24 million and increases the requirement by $16 million. Calculate the starting and scenario ratios. (Answer: 150.0% initially; scenario capital $216 million, requirement $176 million, ratio 122.7%.)
- Two insurers each report $270 million of capital and a $180 million standardized requirement. Under a scenario, the first loses $27 million of capital and its requirement rises by $18 million; the second loses $54 million and its requirement rises by $9 million. Calculate both scenario ratios. (Answer: both start at 150.0%; first: $243 million divided by $198 million = 122.7%; second: $216 million divided by $189 million = 114.3%.)
- An external model reports a $125 million standardized requirement for an insurer with $200 million of available capital. The insurer’s separate hypothetical scenario reduces capital by $25 million and increases the requirement by $15 million from the stated $125 million. Calculate both ratios and state whether the scenario changes the standardized result. (Answer: standardized ratio 160.0%; scenario ratio $175 million divided by $140 million = 125.0%; the scenario calculation does not, by itself, change or redefine the standardized result.)
- A hypothetical insurer has a standardized ratio of 140.0%. Its internal scenario reduces available capital from $280 million by $42 million and increases the requirement from $200 million by $20 million. Calculate the scenario ratio and explain why the initial ratio is insufficient to determine it. (Answer: scenario capital $238 million and requirement $220 million; ratio 108.2%. The initial ratio does not specify the scenario changes to capital or requirement.)