Business Risks and Principles of Insurance: ISC Class 11 Business Studies
Updated 17 October 2026 · Fact-checked
Business risk is the chance of loss because of uncertain events. Insurable risks (fire, theft, accidents) can be transferred to an insurer for a premium; non-insurable risks (competition, changes in fashion, trade losses) cannot. Insurance is based on seven principles: utmost good faith, insurable interest, indemnity, contribution, subrogation, causa proxima and mitigation of loss, which keep the contract fair and prevent gain from loss.
Understand Business Risks and the Principles of Insurance
Business risks. Uncertainty of loss. Causes: natural (flood, fire), human (theft, strike, fraud), economic (price fall, change in demand). *Insurable risks:* can be measured and insured, such as fire, theft, accident, death. *Non-insurable risks:* speculative or market risks such as changes in demand or competition.
Insurance. A contract in which the insurer agrees to compensate the insured for a specified loss in return for a premium. Features: contract, premium, risk transfer, sharing of risks among many.
Principles.
1. Utmost good faith (uberrimae fidei). Both parties must disclose all material facts honestly. If the insured hides a material fact (illness), the insurer may cancel the contract.
2. Insurable interest. The insured must stand to lose financially if the subject matter is damaged. A person has insurable interest in his own life, spouse's life and property he owns. Timing: in life insurance it is needed at the time of taking the policy; in fire insurance it is needed both at the time of taking the policy and at the time of loss; in marine insurance it is needed at the time of loss.
3. Indemnity. The insured is paid the actual loss, not more, so that he does not profit. Applies to fire, marine and other general insurance, not to life insurance. Payment is limited to the lower of actual loss and the sum insured.
4. Contribution. When the same subject matter is insured with more than one insurer (double insurance), the insured cannot recover more than the actual loss in total. Each insurer bears a share of the loss: Insurer's share = Loss x its sum insured / total of all sums insured.
5. Subrogation. After paying a claim, the insurer steps into the position of the insured and can recover the loss from a third party who caused it. The recovery cannot be more than the amount the insurer has paid.
6. Causa proxima (proximate cause). The insurer pays only if the dominant, effective cause of loss is an insured peril (not merely the cause nearest in time). Example: a fire policy covers the loss if a fire causes the damage; if flood (not insured) was the effective cause, no claim.
7. Mitigation of loss. On a loss, the insured must take reasonable steps to reduce the loss as if he were uninsured.
Double insurance and re-insurance. *Double insurance* means insuring the same subject matter and risk with two or more insurers; the insured can claim only the actual loss, and the insurers share it by contribution. *Re-insurance* means an insurer passes on part of a large risk to another insurer to reduce its own exposure.
Underinsurance and average clause. If property is insured for less than its value, the claim is reduced in proportion: Claim = Loss x (Sum insured / Value of property).
Difference. Life insurance (assurance) deals with an event certain to happen (death) and is not a contract of indemnity; general insurance deals with uncertain events and is a contract of indemnity.
Business Risks and the Principles of Insurance: key facts
- Indemnity claim
- Claim = Lower of (Actual loss, Sum insured) | Not more than actual loss
- Fire and general insurance.
- Average clause
- Claim = Loss x Sum insured / Value of property | Applies if underinsured
- Pro-rata payment.
- Principles
- Utmost good faith
- Insurable interest
- Indemnity
- Contribution
- Subrogation
- Causa proxima
- Mitigation of loss
- Seven principles.
- Contribution
- Insurer's share = Loss x Its sum insured / Total of all sums insured
- Applies in double insurance.
- Subrogation
- Recovery from third party <= Amount paid by insurer
- Insurer cannot gain more than it paid.
How to answer Business Risks and the Principles of Insurance questions
Case questions name the principle and apply it.
- 1Read the case and find the key fact (hidden fact, loss amount, cause).
- 2Name the principle involved.
- 3Apply it with a figure or reasoning.
- 4State the result: claim paid, reduced or rejected.
Business Risks and the Principles of Insurance in real life
The idea, met in an everyday situation. Answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.
Causa proxima
Suppose a shopkeeper has a fire insurance policy. A flood (not insured) damages the shop, then an electrical fire caused by the flood water destroys the stock.
Is the fire loss payable?
Try it first, then show the solutionSolution
- The fire is the last event, but it was triggered by the flood, so the flood is the dominant, effective cause of the whole chain of loss.
- The flood is not an insured peril under a fire policy, so the loss is not payable.
Answer: The flood is the proximate (dominant, effective) cause and it is not insured, so the fire loss is not payable, unless the policy also covers flood or fire following flood.
Memory hook: Pay for the dominant effective cause.
Tricks to remember Business Risks and the Principles of Insurance
Short memory aids. Say each one aloud once, then use it on a question the same day.
UIICSCM
Utmost good faith, Insurable interest, Indemnity, Contribution, Subrogation, Causa proxima, Mitigation.
Use it when: Seven principles.
No profit from loss
Indemnity gives back the loss, nothing more.
Use it when: Indemnity.
Proportion rule
Underinsured: claim shrinks in the same proportion.
Use it when: Average clause.
Business Risks and the Principles of Insurance: solved examples
Ordered from board level to HOTS. Try each one before you open the solution.
Example 1: Insurable interest · 1 mark · MCQBoard level
Which relationship gives insurable interest in a life policy?
(a) a stranger's life (b) one's own life (c) a neighbour's life (d) a celebrity's life
Try it first, then show the solutionSolution
- A person has insurable interest in his own life.
Answer: (b) one's own life
Example 2: Insurable and non-insurable risks · 3 marks · Short answerBoard level
Explain why theft of stock can be insured but a fall in demand for a product cannot. (3 marks)
Try it first, then show the solutionSolution
- Theft is a pure risk: it can only cause loss, and its chance can be estimated from past data.
- A fall in demand is a speculative, market risk linked to the owner's own decisions and cannot be measured by an insurer.
- The insurer needs measurable, pure risks that are spread over many insured persons.
Answer: Theft is a measurable pure risk spread over many insured persons, so it is insurable; fall in demand is a speculative market risk which cannot be measured or pooled, so it is not insurable.
Example 3: Indemnity · 6 marks · Long answerHarder board level
A shop worth Rs 12,00,000 is insured for Rs 10,00,000. A fire causes a loss of Rs 4,00,000. Find the claim, (a) if the policy ignores underinsurance and (b) under an average clause. A second case: loss of Rs 11,00,000 with the same policy. (6 marks)
Try it first, then show the solutionSolution
- (a) Loss 4,00,000 is below the sum insured, so claim = Rs 4,00,000.
- (b) Average clause: 4,00,000 x 10,00,000 / 12,00,000 = Rs 3,33,333.
- Second case, (a): claim limited to sum insured 10,00,000; (b): 11,00,000 x 10/12 = Rs 9,16,667.
Answer: First loss: Rs 4,00,000 without average, Rs 3,33,333 with average. Second loss: Rs 10,00,000 without average, Rs 9,16,667 with average.
Example 4: Utmost good faith · 4 marks · Short answerHarder board level
Ravi hides that he smokes heavily when buying a health policy and later claims for lung treatment. Discuss using the principle of utmost good faith and state the likely result. (4 marks)
Try it first, then show the solutionSolution
- Smoking is a material fact for health risk.
- Hiding it breaches utmost good faith.
- The insurer may repudiate the claim or cancel the policy.
- Honest disclosure is the duty of the insured.
Answer: The insurer can reject the claim because a material fact was hidden.
Example 5: Mitigation case · 5 marks · Long answerHOTS / competency
A godown with insured goods catches fire. The owner watches without calling help and the loss grows from Rs 50,000 to Rs 3,00,000. Evaluate the claim using mitigation of loss and indemnity. (5 marks)
Try it first, then show the solutionSolution
- The owner must act as if uninsured: call help, save goods.
- The avoidable extra loss of Rs 2,50,000 arose from his neglect.
- The insurer may refuse the avoidable part and pay only the loss that could not have been avoided, about Rs 50,000.
- Indemnity covers actual, unavoidable loss only.
Answer: The insurer is likely to pay only the loss that could not be avoided (about Rs 50,000).
Where students lose marks in Business Risks and the Principles of Insurance
The slips examiners see most often, and what to write instead.
Mistake: Applying indemnity to life insurance
Treating all insurance alike.
Wrong working
Life policy pays only the actual loss
Right working
Life policy pays the sum assured
Do this: Life is not a contract of indemnity.
Usually costs: 1-2 marks.
Mistake: Paying more than the actual loss
Using the sum insured always.
Wrong working
Claim = 10,00,000
Right working
Claim = actual loss 4,00,000
Do this: Lower of loss and sum insured.
Usually costs: 2 marks.
Mistake: Forgetting the average clause
Ignoring underinsurance.
Wrong working
4,00,000
Right working
3,33,333
Do this: Check sum insured against value.
Usually costs: 2 marks.
Exam tips
- Name the principle first, then apply.
- Show the average clause formula in full.
- State the final decision in one sentence.
Practice questions on Business Risks and the Principles of Insurance
Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.
Q1 · 1 mark · MCQBoard level
The principle that the insured must disclose all material facts is:
(a) indemnity (b) utmost good faith (c) subrogation (d) contributionHint
Honesty.
Answer
(b) utmost good faith
Q2 · 4 marks · Short answerBoard level
Explain causa proxima and mitigation of loss with an example each. (4 marks)
Hint
Dominant effective cause; reduce loss.
Answer
Causa proxima: the loss is covered only if the dominant (proximate) effective cause is an insured peril, e.g. fire damage under a fire policy. Mitigation: the insured must take reasonable steps to reduce the loss, e.g., call the fire brigade and save stock.
Q3 · 4 marks · Short answerHarder board level
Stock worth Rs 8,00,000 is insured for Rs 6,00,000 with an average clause. A fire destroys stock worth Rs 2,40,000. Find the claim. If the stock were insured for Rs 8,00,000, find the claim. (4 marks)
Hint
Sum insured / value.
Answer
Claim = 2,40,000 x 6,00,000 / 8,00,000 = Rs 1,80,000. If fully insured, Rs 2,40,000.
Q4 · 5 marks · Long answerHarder board level
A building valued at Rs 20,00,000 is insured for Rs 15,00,000. Fire loss is Rs 8,00,000 (average clause) and the owner also incurs Rs 20,000 to save part of the stock. Find the claim for the loss, and discuss whether the salvage cost is claimable. (5 marks)
Hint
Pro-rata first.
Answer
Claim for loss = 8,00,000 x 15,00,000 / 20,00,000 = Rs 6,00,000. Reasonable costs of mitigating loss are usually included in the claim (subject to policy terms), so Rs 20,000 is claimable.
Q5 · 3 marks · Short answerHOTS / competency
A person buys life insurance on the life of a business rival to gain from his death. Apply insurable interest and state the insurer's likely response. (3 marks)
Hint
Financial loss test.
Answer
The buyer has no insurable interest: he suffers no financial loss from the rival's death. The contract is void and the insurer will refuse it.
Test your recall
Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.
1.Seven principles?Show answer
Utmost good faith, insurable interest, indemnity, contribution, subrogation, causa proxima, mitigation of loss.
2.Does indemnity apply to life?Show answer
No.
3.Average clause formula?Show answer
Loss x sum insured / value.
4.Insurable risk example?Show answer
Fire.
5.Non-insurable risk example?Show answer
Fall in demand.
Business Risks and the Principles of Insurance: frequently asked questions
Is insurance a contract?
Yes.
Premium is?
The price paid to the insurer.
What if the insured lies?
The insurer may cancel the policy.
Is gambling insurance?
No, gambling creates risk; insurance transfers it.