Commercial law is not one subject; it is seven statutes stacked in one afternoon. That structure produces a particular kind of error: candidates learn each block separately, then meet a question that turns on the boundary between two similar institutions, and answer from the wrong block.
The marks are in the boundaries. This article lists the comparisons that recur and gives a method for each.
Why distinctions are the natural form of the question
A distinction question is easy to set, easy to mark and hard to bluff. It also has a property candidates underestimate: it requires you to state the consequence, not just the difference. Two institutions can be defined differently and lead to the same outcome; the examinable point is usually the outcome that differs.
So the working template for every pair is three columns:
| Institution A | Institution B | |
|---|---|---|
| What it is | definition in one clause | definition in one clause |
| Test / requirement | the condition that creates it | the condition that creates it |
| Consequence | what follows, who may invoke, what is barred | what follows, who may invoke, what is barred |
The third row is where the marks are. If you cannot fill it, you know the words and not the law.
The comparisons that keep appearing
Business organizations
Corporation versus partnership. Separate personality in both, in a sense — which is exactly why the question is asked. Focus on the consequences: liability of the members, transferability of the interest, management, and how each is dissolved.
Ordinary versus preferred shares. Where the distinction bites: dividends, voting, and the order of payment on liquidation. Learn the consequence for each.
The corporate veil and its piercing. The doctrine itself is short; what is examined is the grounds for piercing, and whether the corporate form may be disregarded against a person who used it.
The trust-fund doctrine. The competing claims of corporate creditors against paid-in capital and dividends — and what it does and does not permit.
Insurance
Concealment versus misrepresentation. Both concern the disclosure of information before the contract; the difference lies in whether there is a duty to speak, and in the remedy that follows. Learn the remedy first — it usually decides the answer.
The insurer's defences in sequence. A policy is not avoided for every inaccuracy: the test is materiality, and knowledge is presumed in certain cases. Answers that jump to "the policy is void" without the materiality step lose the marks for the step.
Double insurance versus over-insurance. Different situations, different rules about recovery. Learn what each permits the insured to collect.
Reinsurance. Whether the original insured has any claim against the reinsurer, and why the answer is what it is.
Transportation
Common carrier versus private carrier. Extraordinary diligence is the visible consequence, and therefore the answer most questions are fishing for. But the classification test comes first, and it is the part that is stated badly.
The presumption on loss. The doctrine that a common carrier is presumed at fault, and the exceptions — noting which party must prove what.
Banking
Secrecy of deposits, and its exceptions. Not a distinction but a list, and the list is the examinable content: which body, on what ground, on whose order.
Deposit insurance coverage versus uninsured claims. Who pays, up to what amount, and what happens above it.
Intellectual property
Patent versus trademark versus copyright. Three different subject matters, three different rights, three different terms. The comparison table is short and answers a whole family of questions.
Infringement versus unfair competition in trademark law. Different elements, different remedies, and a favourite.
The idea-expression distinction in copyright. What is protected and what is not — the boundary is the answer.
Special commercial laws
Rehabilitation versus liquidation. What each is for, how each commences, and what happens to claims and contracts. This is the highest-yield comparison in the special-laws block.
A security versus an instrument that is not one. The definition, and the registration requirement that follows.
Public utility versus public service. The consequence is in the citizenship and franchise requirements, so learn the classification and the consequence together.
Taxation
Tax avoidance versus tax evasion. Effect, legality, and the consequence for the taxpayer — a distinction examined every year in some form.
Zero-rated versus exempt. The single most consequential distinction in VAT: one preserves the input tax credit, the other does not. Learn the consequence and you will never confuse them again.
National versus local taxing power. Source, limitations, and remedies — a comparison that appears in both halves of the sitting.
A method for learning a pair
Do not make a list of distinctions and read it. Build the table yourself, from the text, and test it.
- Read both provisions. Not your outline: the provisions.
- Fill the three rows — definition, test, consequence — in your own words.
- Write one fact pattern that sits on the line between them, and decide which side it falls on and why.
- Test it a week later, closed book, by writing the consequence row from memory.
The fourth step is the one that matters, and it takes two minutes. A distinction you have not tested is a distinction you have read.
The trap inside the trap
Commercial law has a specific failure mode: applying the right rule from the wrong statute. Because seven statutes sit in one sitting, an answer can be internally coherent and doctrinally wrong — a corporation rule applied to a partnership, an insurance doctrine applied to a carriage contract.
Two defences:
- Name the statute in the answer. "Under the Revised Corporation Code…" forces you to have chosen, and it lets the examiner see that you chose.
- Read the question for the commercial relationship before the doctrine: who are these parties to each other — incorporators, insurer and insured, carrier and shipper, bank and depositor, secured creditor and debtor? The relationship identifies the statute.
Practising the boundaries
Take a past paper in this sitting and label each question with the block it comes from. You will find the distribution — and you will also find the two or three questions a year that sit between blocks.
Then write skeletons for the boundary questions only, using the three-row table. Half an hour, and it covers the questions that most candidates answer with the wrong statute.
For the map of the sitting, see how to study commercial law; for the tax half, how to study taxation.