Competitive Rivalry: How Intensity Shapes Industry Returns

Competitive rivalry is how hard the sellers already in a field fight over the same buyer, and its intensity shows up in what each sale leaves behind rather than at the bottom of the statement. The contribution margin of Anjani Stationers Private Limited, an invented stationery maker, moved 0.03 of a point across two years while its operating margin fell 6.71 points, so the whole fall sat in a cost base the business grew itself.

Two established results carry everything below, and both are taken as settled. The first is the difference between a cost that moves when one more register is made and a cost that stands still whether the works runs or not. The second is Anjani Stationers Private Limited's two published years, set out in full under the two year statements work-up: revenue of Rs 2,40,00,000/- then Rs 2,70,00,000/-, contributionWhat one sale brings in once the costs that rise and fall with that sale have been taken out, and before anything that stands still is touched. of Rs 1,02,60,000/- then Rs 1,15,50,000/-, fixed costA cost whose total stays where it is whether the works makes one register or four lakh of them. Shed rent, a supervisor's pay and insurance all sit here. of Rs 49,60,000/- then Rs 74,00,000/-, and operating profit of Rs 53,00,000/- then Rs 41,50,000/-.

Each of those contribution figures divided by its own revenue gives the contribution marginContribution over revenue, as a percentage. The contribution margin says what share of every rupee of sales survives the costs that move with the sale. How the underlying split is drawn up belongs to financial accounting.: 42.75 per cent, then 42.78 per cent. Each operating profit figure divided by its own revenue gives the operating marginOperating profit over revenue, as a percentage. The operating margin is what is left after everything the business spends to run, including the costs that do not move with sales.: 22.08 per cent, then 15.37 per cent. The four margin figures carry the whole argument. Read only the second pair and the answer about competition comes out wrong.

One note before anything is built on them. The accounting work that first set these years out reports the contribution margin at 42.8 per cent in both years and concludes that the margin held. The figures 42.75 and 42.78 are those same two numbers read to a second decimal place, and they say exactly the same thing. Where the two are ever in tension, the earlier work is the one to follow.

What is competitive rivalry, and what does intensity mean?

Rivalry is the contest between the sellers who are already in a field, competing for the same buyers with broadly the same thing. Intensity is not a count of how many of them there are. Intensity is how much of what the field earns the contest ends up handing to the buyer instead. A field with three sellers who undercut each other every quarter is more intensely rivalrous than a field with twelve who each quietly hold their own corner. Rivalry is a contest between sellers who are already there, so rivalry is only one of the things deciding what a field earns.

The frame is not new and it has an author worth naming. Michael Porter set rivalry out as one of five forces in Competitive Strategy in 1980, sitting alongside the ease with which a new seller can set up, what a buyer could turn to instead, and who holds the terms on either side of the trade. Each of the other four is a subject of its own. Rivalry raises one narrow question of its own: where, in a set of accounts and nothing else, would rivalry actually show up?

Picture ten shops in one mall selling the same phone case. The ninth shop opening does not, by itself, change what any of them can charge. The ninth shop putting Rs 20/- off its price does. The ninth shop opening and the ninth shop cutting its price are the difference between how many sellers there are and how hard they are fighting, and only the second one is rivalry.

Where would rivalry land first in a set of accounts?

A seller under pressure gives ground, and the striking thing is that the places it gives ground are all the same kind of place. A lower charge. A discount settled at the end of the year on volume taken. Free delivery. Sixty days of credit where it used to be thirty. An extra service thrown in to keep the order. Every single one of those is paid on each sale that is made, and paid again on the next one. Every one of those concessions is paid per sale, so every one of them lands above contribution and nowhere else.

Now look at the other side. Rent does not fall because a rival opened down the road. A supervisor's salary does not fall because a buyer asked for a discount. The insurance on the works, the lease on the delivery van, the pay of the person who does the accounts: none of it moves when a competitor cuts a price. Rent, salary, insurance and the lease are the costs that stand still, and rivalry has no direct route to them at all.

So the two kinds of cost respond to competition completely differently, and that asymmetry is what turns two margins into a test. The first place to look for rivalry is the price-side margin, and never the bottom one. Note carefully what that claim is and is not: a claim about where the evidence would be if there were any, not a claim about what happened. Whether anything did happen to Anjani Stationers is a question for its own two years.

Think of a food stall outside one office building. A second stall arrives and the first takes Rs 5/- off a plate to hold its regulars. The first stall still pays exactly the same Rs 600/- a month for its pitch. The competition took money off every plate sold and nothing at all off the rent.

Anjani Stationers lost 6.71 points of operating margin. Was that competition?

The headline figure comes first, and the fall in it is entirely real. Anjani Stationers Private Limited's operating margin was 22.08 per cent in year one and 15.37 per cent in year two. The margin fell 6.71 pointsA point of margin is one percentage point, so a move from 22.08 per cent to 15.37 per cent is a fall of 6.71 points. Points are used rather than percentages so that a change in a percentage is never confused with a percentage of a percentage. in a single year. In rupees it is Rs 53,00,000/- of operating profit becoming Rs 41,50,000/-, and revenue grew while that happened.

The instinct is worth saying out loud: a margin falling that hard reads as competitive pressure. A note that said so would sound entirely reasonable, would survive a first read by a sensible person, and would be built on a number nobody could dispute. The number is published, the fall is real, and the reading is still wrong.

The fall deserves its full weight rather than a quick glance. The fall is not a rounding artefact and it is not a trick of presentation. A third of the operating profit is gone in twelve months. Whatever is ultimately said about competition, the 6.71 points stand first, and a correct number is exactly what carried the wrong diagnosis.

What happened to the price-side margin over the same two years?

Open it. Anjani Stationers' contribution margin was 42.75 per cent in year one and 42.78 per cent in year two. The contribution margin moved 0.03 of a point across the whole year, and it moved up. Not one paisa of the 6.71 point fall came from what a sale leaves behind.

Two things follow from that pair immediately. The first is the reconciliation with the accounting work these figures come from. The accounting work reports both years at 42.8 per cent to one decimal place and concludes that the margin held. The 42.8 per cent is the same finding at a coarser resolution, and it is right. Reading to a second decimal has not turned up a disagreement; it has turned up the size of a movement that the coarser reading correctly called nothing.

The second is that 0.03 of a point is not a movement worth explaining, and nobody should try. The movement is not evidence that the business raised its charge, and not evidence that competition eased. A flat line read to two decimal places looks exactly like 0.03 of a point. One more fact comes from the same accounting work: the split between costs that move with volume and costs that do not is an assumption made when these statements were worked up, not something any Indian filing discloses.

So where did the 6.71 points actually go?

Into a cost base the business grew itself. Revenue rose 12.5 per cent, from Rs 2,40,00,000/- to Rs 2,70,00,000/-. Over the same twelve months the fixed base rose 49.19 per cent, from Rs 49,60,000/- to Rs 74,00,000/-, on more people, more space and a binding works the business bought into. Chitra Binding Works Private Limited is that binding works, and how much of the rise it took is not stated separately.

The subtraction is one line and it settles the whole question. Contribution rose from Rs 1,02,60,000/- to Rs 1,15,50,000/-, a rise of Rs 12,90,000/-. Fixed cost rose from Rs 49,60,000/- to Rs 74,00,000/-, a rise of Rs 24,40,000/-. One taken from the other leaves Rs 11,50,000/-, and Rs 11,50,000/- is exactly the fall in operating profit from Rs 53,00,000/- to Rs 41,50,000/-. Nothing is left over and nothing is unexplained. A cost the business took on itself is not a rival.

The subtraction is the accounting work's own. The accounting work stopped there and never asked the next question: given that pattern, what happens to a claim about competition? The entire movement has already been accounted for somewhere a competitor cannot reach, so the claim has nowhere left to stand.

Think of a tuition teacher whose fee per student did not change all year. Midway through, she moved into a bigger room and hired an assistant. Her takings at the end of the year were lower than the year before, and every parent paid exactly what they paid last time. Nobody undercut her. She simply committed to a larger standing cost and had not yet filled it.

The last three rows are the argument in miniature. The operating margin is nothing more than the contribution margin less what the fixed base takes as a share of revenue. In year one, 42.75 less 20.67 is 22.08. In year two, 42.78 less 27.41 is 15.37. The fixed base took 6.74 more points of revenue than it did the year before, the contribution margin handed back 0.03 of a point, and the difference between those two is the 6.71 points that went missing.

How is this test run on any two years?

Put the two margins side by side and read them together rather than one at a time. If the price-side margin held while the bottom margin fell, the cause sits below contribution and rivalry is not the finding, whatever else may be true about the field. If the price-side margin fell, rivalry becomes a candidate and is still not established. A change in what the business sold, an input cost it could not pass on, or one large order taken cheap will all move that same margin in the same direction. A falling margin is a question and not an answer, and the pair of margins settles which question to ask.

The test is more than directional, and its exactness is what makes it worth learning. Hold revenue where it is and hold the fixed base where it is, and the operating margin is exactly the contribution margin less what the fixed base takes. On year two's figures the fixed base takes 27.41 points, and the 27.41 point offset does not move. So a point off the contribution margin is a point off the operating margin, one for one, with nothing compounding and nothing to model. For the price side alone to have delivered the 6.71 point fall, the contribution margin would have had to come down 6.71 points, from 42.78 per cent to 36.06 per cent, and instead it went up.

Does a second business, in an unrelated trade, read the same way?

One business holding its price-side margin could be luck. Two businesses in completely unrelated trades showing the same shape is what turns a reading into a method. Setu Bazaar, a second invented business, keeps 50.00 per cent of its Rs 20 croreOne crore is one hundred lakh, written in Indian digit grouping as 1,00,00,000. Rs 20 crore is Rs 20,00,00,000/-. of revenue as contribution, which is Rs 10 crore. Against that sits a fixed base of Rs 12,50,00,000/-, and the year came out at minus Rs 2,50,00,000/-.

Read those two margins together, exactly as before. Setu Bazaar's price side is not thin at all. Half of every rupee of revenue survives the costs that move with the sale, a wider price-side margin than Anjani Stationers has. The loss is entirely below contribution, in a standing base that takes more of revenue than contribution brings in. Setu Bazaar's loss is not evidence that Setu Bazaar faces no rivalry. The loss is evidence that a published result does not measure rivalry at all.

The distinction between the two is the one the whole test turns on, so it bears writing twice. A loss is a fact about a business. Rivalry is a fact about a field. The test connects them only in one direction: it can say that a particular movement did not come from the price side, and therefore did not come from a rival cutting into it. The test cannot say anything about how crowded the field is. Setu Bazaar's trade and the way it charges are set out under the Setu Bazaar work-up, and the three figures above are all the test needs.

How Competitive Strategy Changes Industry Economics

A strategy, stripped to one line, is a choice about what a business commits money to before it knows what it will sell. Anjani Stationers made one. Its standing base grew Rs 24,40,000/- in a single year, on people, on space and on a binding operation it bought into, and every rupee of that has to be earned back out of the same Rs 46.20/- that each register leaves behind. A strategy changes what a business must sell before it earns anything, and it does that without any rival lifting a finger.

Now take the same choice one step out, to the part worth carrying away. Suppose several sellers in the same field make that same commitment in the same year, each of them building capacity or capability ahead of demand. Not one of them cuts a charge. Not one of them gives an extra day of credit. Every price in the field stands exactly where it stood. Every one of them now has a bigger standing base to cover before anything is left, and the returns across the whole field fall together. A reader looking only at margins would call that competition. The fall is not competition. The fall is the same strategic choice, made by several people at once.

The shared commitment is a real mechanism and it deserves a real limit stated in the same breath. No rival's accounts are published and a plausible guess would be worse than silence, so whether Anjani Stationers' own field did anything of the kind is not something these two years can settle. How a field looks, and how sectors behave differently from one another, is taken up under Industry Types: How Sectors Behave Differently. The narrower and firmer claim stands: falling returns are consistent with a shared strategic choice as easily as with a price fight, and the two margins are how the two are told apart.

Why does rivalry decide whether a charge rise holds?

Pricing leaves one question open, and part of the answer belongs to rivalry. Why might any business be able to raise its charge without losing buyers? Four things decide it: the name the business carries, what it costs a buyer to move, how scarce the thing is, and rivalry.

Rivalry's part is the simplest and the most often skipped. A charge rise holds only if the buyer cannot reach an equivalent seller at the moment of the rise. Not in principle. Not eventually. At that moment, with that order, for that delivery date. A field can be full of capable sellers and a rise still holds, if none of them can take three thousand registers by the fifteenth. A charge rise is tested at the moment the buyer looks elsewhere, and what they find there is rivalry.

The second question from pricing turns on the same thing. Why is a business in a position to charge two buyers differently at all? Because the dear tier can only stay dear while nobody else will take it. The moment another seller will, the dear tier walks, and the difference between the two charges collapses. Rivalry closes the gap between two prices for the same thing.

The other three of the four are each a subject of their own. A name's work before anyone prices anything is taken up under Brand Equity: What a Brand Does Before Anyone Prices It. Why a buyer stays put is taken up under Switching Costs: Why Customers Stay Even When They Could Leave. Scarcity, and what the rest of the field looks like, sits with Industry Types: How Sectors Behave Differently.

What can one business's accounts never settle?

Anjani Stationers has held the Sunrise Public School group as a customer for eleven years. Eleven years is evidence that something holds the buyer in place. Eleven years is not a measure of how much, and a length of tenure is not a number that can be entered into anything. How a buyer is actually held in place is taken up under Switching Costs: Why Customers Stay Even When They Could Leave.

Now the ruling, and it is the one sentence that matters most. A margin that did not move cannot have been pushed down, so one business's statements can rule rivalry out as the cause of a movement. The same statements can never rule rivalry in. Ruling it in needs facts about other sellers that no set of accounts anywhere contains: how many there are, how easily another could set up, and what a buyer could turn to instead. Accounts can acquit a rival and cannot convict one.

All three questions do get answered, just not from a statement of profit and loss. How many sellers a field carries and how concentrated they are is taken up under Consolidation and Fragmentation: How an Industry Concentrates, and What Thin Returns Look Like. A buyer's alternatives to the thing altogether are taken up under Substitutes: The Competition That Is Not in the Industry. How sectors differ from one another in the first place is taken up under Industry Types: How Sectors Behave Differently. Each of those needs facts from outside the business, and no set of accounts supplies them.

What persisted while all of that was happening?

One more figure, and it comes with a firm restriction on what may be done with it. In the same year its operating margin fell 6.71 points, Anjani Stationers earned 27.3 per cent on capital employedThe money tied up in running the business, taken as what has been put in and left in. Here it is Rs 1,52,00,000/-. How it is assembled belongs to financial accounting. of Rs 1,52,00,000/-. A margin and a return are different questions, and a fall in the first is not a collapse in the second.

The reason is easy to see once it is said. A margin asks what share of a rupee of sales survives. A return on capital employedOperating profit measured against the capital tied up in the business, as a percentage. The return answers a different question from a margin: how hard the money in the business is working, rather than what share of a sale survives. asks how hard the money tied up in the business is working. A business can give up margin points while turning its capital faster, and the second can hold up while the first slips.

The 27.3 per cent is a return that persisted through a year of falling margin, and on its own it is set against nothing: not against what the money cost to raise, not against any rate at all, not against another business. Whether a return of that size is worth what the business cost is a genuine question and a completely different one, taken up under the cost of capital.