Insurable Risk
After learning about the different classifications of risk, Aman began to understand that not every risk could be covered through insurance. Some risks were measurable, while others depended on personal judgement or involved the possibility of making profits. However, one question still puzzled him. If every uncertain event involved some degree of risk, why didn't insurance companies simply insure everything? Why couldn't someone buy insurance against failing an examination, making a loss in business, or losing money in the stock market? His father explained that insurance companies cannot cover every type of uncertainty. Instead, they insure only those risks that satisfy certain well-established principles known as the **criteria of insurable risk**. These principles enable insurers to estimate future losses accurately, calculate fair premiums, and maintain the long-term stability of the insurance system.
The first and one of the most important principles is the **Law of Large Numbers**. His father explained that insurance is possible only because companies insure a very large number of people who have similar risk characteristics. When thousands or even millions of individuals contribute premiums into a common insurance pool, insurers can estimate future claims with a reasonable degree of accuracy using statistical methods.
To understand this better, Aman imagined an insurance company that provides life insurance to 10,000 healthy individuals belonging to a similar age group. Historical data and actuarial analysis may indicate that only a small percentage of these policyholders are likely to die during the policy period. Since the number of policyholders is very large, the insurer can predict the approximate number of claims that may arise each year with considerable confidence. This principle enables the company to determine how much premium should be collected from each policyholder so that the claims of the few can be paid from the contributions of the many.
His father further explained that the professionals responsible for making these statistical calculations are known as **actuaries**. Actuaries analyse historical mortality data, life expectancy, medical trends, and demographic information to forecast future claim probabilities. They estimate both the expected number of claims and the likely financial cost associated with those claims. Based on these calculations, insurers determine premium rates that remain financially sustainable while providing adequate protection to policyholders.
Another essential requirement is that **the loss must be accidental or fortuitous**. Insurance is designed to protect against events whose occurrence is uncertain. If an event is guaranteed to happen immediately or is deliberately caused, it cannot normally be insured.
His father illustrated this principle with a simple example. Every human being will eventually die, but nobody knows exactly when that event will occur. A healthy twenty-five-year-old and a healthy sixty-year-old are both certain to die someday, yet the timing remains uncertain. Because this uncertainty exists, life insurance can be offered. However, if a person is terminally ill and death is expected within a very short period, the uncertainty largely disappears. Since the event is almost certain to occur immediately, such a situation generally does not satisfy the normal conditions for issuing a standard life insurance policy. Insurance protects against uncertain timing rather than events that are already certain to occur in the immediate future.
The third important criterion is that **the loss must be definite and measurable**. Insurance companies should be able to determine clearly whether a loss has occurred, when it occurred, what caused it, and what amount should be paid under the policy. Ambiguity creates disputes and makes insurance financially impractical.
In life insurance, this requirement is usually easier to satisfy because the occurrence of death can generally be verified through official records such as medical certificates or government-issued death certificates. Once the insured event is confirmed, the insurer pays the agreed **sum assured** according to the terms of the policy. Since both the event and the amount payable are clearly defined in advance, there is little uncertainty regarding the insurer's financial obligation.
His father emphasised that insurance contracts are based on clearly specified terms and conditions. Both the policyholder and the insurance company should know exactly under what circumstances benefits become payable. This clarity protects the interests of both parties and ensures that claims can be settled efficiently.
Another important principle is that **the loss should not be catastrophic**. At first, Aman found this idea difficult to understand. If insurance exists to compensate losses, why would insurers avoid catastrophic situations?
His father explained that insurance depends on **risk pooling**. The premiums collected from many policyholders are used to compensate the relatively small number who experience insured losses. However, if almost everyone in the insurance pool suffers losses simultaneously, the system becomes financially unsustainable.
For example, suppose every policyholder insured by a company were to suffer an insured event at exactly the same time. The insurer would be required to pay every claim immediately, far exceeding the premiums collected. Such a situation would threaten the financial stability of the insurance company itself. Fortunately, life insurance claims normally occur independently over time rather than all at once, allowing the pooling mechanism to function effectively.
Nevertheless, large-scale disasters such as earthquakes, floods, pandemics, or other catastrophic events may result in unusually high claim volumes. To protect themselves against such extraordinary situations, many insurance companies purchase **reinsurance**, which is essentially insurance for insurance companies. Reinsurance enables insurers to transfer a portion of exceptionally large risks to specialised reinsurance companies, thereby improving their financial stability during periods of unusually high claims.
The final criterion is that **the premium must be economically feasible**. Insurance should remain affordable for policyholders while still allowing insurers to meet future claim obligations and operating expenses.
His father explained that if premiums became excessively expensive, very few people would purchase insurance, defeating its purpose. On the other hand, if premiums were set too low, insurers might be unable to pay future claims. Therefore, insurance companies carefully balance affordability with financial sustainability when determining premium rates.
Ideally, the total premium paid during the policy term should remain significantly lower than the potential financial protection provided under the policy. This allows individuals to obtain substantial life cover by paying relatively modest premiums over time. The large number of policyholders participating in the insurance pool makes this balance possible.
Aman also realised that all these criteria are interconnected. The Law of Large Numbers allows insurers to estimate claims accurately. Accidental and uncertain events make insurance meaningful. Definite and measurable losses simplify claim settlement. Avoiding catastrophic concentration protects the insurance pool, while economically feasible premiums encourage wider participation. If any one of these principles were ignored, the insurance system would become unstable or impractical.
His father then connected these concepts with **underwriting**, a process Aman had encountered earlier. Before approving any insurance proposal, underwriters evaluate whether the applicant's risk satisfies the conditions required for insurance. They examine factors such as age, medical history, occupation, lifestyle, family history, and financial profile. Only after assessing these details do they decide whether to accept the proposal, determine the appropriate terms of coverage, and calculate the premium. This careful evaluation ensures fairness for both the policyholder and the insurer.
Aman also learned that these principles benefit customers as much as insurance companies. Because insurers follow scientific methods to evaluate risk, policyholders receive premiums that are based on objective analysis rather than arbitrary judgement. Responsible applicants with lower levels of risk generally enjoy lower premium rates, while the insurance company remains financially capable of honouring future claims.
Finally, his father reminded him that insurance is built on trust, discipline, and statistical certainty rather than guesswork. Every premium collected contributes to protecting the entire insurance pool, while every claim paid reflects the successful operation of these fundamental principles.
After understanding the concept of insurable risk, Aman realised that insurance companies do not insure every uncertain event. Instead, they provide protection only when specific conditions are satisfied. A risk should involve a large number of similar policyholders, arise from uncertain and accidental events, result in measurable financial loss, avoid catastrophic concentration, and remain economically affordable through reasonable premiums. These principles allow insurers to provide reliable financial protection while ensuring that the insurance system remains stable, sustainable, and beneficial for millions of policyholders over the long term.