Educerie · IB Diploma · Business Management
Unit 1 Introduction to business management · 1.2 Types of business entities
What you must be able to do
| You must be able to | Level | What it looks like in the exam |
|---|---|---|
| Distinguish between the private sector and the public sector, with examples | SL, HL | "Distinguish between the private sector and the public sector" (4 marks) |
| Describe the main features of sole traders, partnerships, privately held companies and publicly held companies | SL, HL | "Outline two features of a partnership" (4 marks) |
| Evaluate those four forms: their advantages and disadvantages, and their suitability for a named business | SL, HL | "Explain one advantage and one disadvantage for [firm] of becoming a publicly held company" (4 marks); "Discuss whether [firm] should…" (10 marks) |
| Describe and evaluate the three for-profit social enterprises in the guide: private sector companies, public sector companies and cooperatives | SL, HL | "Explain two advantages to [members] of forming a cooperative" (4 marks) |
| Describe and evaluate the non-profit social enterprise in the guide: the non-governmental organization (NGO) | SL, HL | "Explain two challenges facing [NGO]" (4 to 6 marks); Paper 3 question 2 |
| Calculate ownership percentages before and after new shares are issued, and say what they mean for control | SL, HL | Paper 2: "Calculate the family's share of ownership after the flotation" (2 marks) plus a comment |
Before you start
You need the definition of a business from 1.1: an organisation that uses resources to meet needs and wants, whether or not it aims for profit. You also need the idea that an entrepreneur bears risk, because this subtopic is largely about how much of that risk the law lets an owner put down.
1The idea in one paragraph
Every business has a legal form, and the form answers four questions: who owns it, who controls it, who pays if it fails, and where the surplus goes. Sole traders and partnerships are owned and run by one or a few people who carry unlimited liability: if the business cannot pay its debts, the owners must, from their own pockets. Companies, privately held or publicly held, are separate legal persons owned by shareholders whose limited liability caps their loss at what they invested; in exchange, companies cost more to set up, must publish more, and in the publicly held case the founders can lose control. Social enterprises use trading to pursue a social or environmental purpose: some are for-profit (private sector companies, public sector companies, cooperatives), and one is non-profit (the NGO). Choosing a form is always a trade between capital, control, risk and purpose.
2The private sector and the public sector
The economy is split into two sectors by who owns and controls the organisation. (These are not the four sectors of 1.1, which sort businesses by what they do; these sort them by who owns them.)
- The private sector is made up of organisations owned and controlled by private individuals and groups: sole traders, partnerships, companies, cooperatives and NGOs. Most aim for profit, but not all.
- The public sector is made up of organisations owned and controlled by the government, national or local. It provides services that the government has decided everyone should have, or that private firms would not provide well: defence, policing, state schools and hospitals, roads, often public transport and water. It is financed mainly through taxation, with charges for some services.
Figure 1 places every entity the guide names in one of the two columns, and in one of three rows by purpose.
Read the caption twice. A publicly held company is in the private sector: "publicly" means only that anyone can buy its shares on a stock exchange. A public sector company is owned by the state. Students often swap them, and a question that turns on the difference is an easy four marks for the student who does not.
Organisations can move between the sectors. Privatisation is the sale of a public sector organisation to private owners, usually to raise money for the government and to make the business more efficient through competition and the profit motive. Nationalisation is the reverse: the government takes a private business into public ownership, for example to rescue a failing firm whose service the country cannot do without. Either move changes the organisation's objectives, and that is where the exam question usually sits.
3Five features that separate one form from another
Before the forms themselves, learn the five features that distinguish them. An answer that compares forms on these five, applied to the case, is an answer that scores.
Ownership. Who owns the business: one person, several partners, shareholders, members, or nobody at all (an NGO has no owners who take profit).
Control. Who makes the decisions. In small forms the owners control directly. In companies, shareholders elect a board of directors to run the business, so ownership and control can separate.
Liability. Who pays the debts if the business cannot. With unlimited liability the owners are personally responsible for all the business's debts, without limit. With limited liability the owners' loss is limited to the money they have invested in the business; their personal possessions are safe.
Legal identity. An unincorporated business, such as a sole trader or an ordinary partnership, has no legal existence separate from its owners: the business's debts are the owners' debts. An incorporated business, a company, is a separate legal entity: it can own property, sign contracts, sue and be sued in its own name, and it carries on existing when its owners change. Limited liability follows directly from incorporation.
Finance and disclosure. The more people who can buy a stake, the more capital a business can raise, and the more information the law requires it to publish so that those people are protected.
Figure 2 puts the liability difference into numbers. Two failed businesses each owe €60,000 and raise €22,000 by selling everything they own. €38,000 is still owed.
In panel (a) the owner is a sole trader, so the creditors can pursue the €38,000 from the owner's savings, car, and in the worst case home. In panel (b) the business is a company. The company is a separate legal person, so the debt belongs to it, not to the shareholders. The creditors lose the €38,000; each shareholder loses what they paid for their shares, €10,000 here, and nothing more.
Limited liability: the owners' loss is limited to what they invested. It exists because a company is a separate legal person from its owners.
4Sole traders
A sole trader is a business owned by one person, who has unlimited liability. The owner may employ other people; "sole" refers to ownership, not to working alone. It is the commonest form of small business in many countries: hairdressers, plumbers, market traders, tutors, freelance designers.
Take Farah Nasser, who runs Studio Farah, an invented hair salon with two employees.
| Advantages | Disadvantages |
|---|---|
| Quick and cheap to set up; few legal formalities | Unlimited liability: Farah's home is at risk if the salon fails |
| Farah takes every decision herself, quickly | Finance is limited to her savings, profits and what a bank will lend a single person |
| She keeps all the profit | She carries every function herself (1.1), so work and stress are heavy |
| Her accounts stay private | If she is ill or on holiday, the business may stop |
| Close contact with customers | Lack of continuity: the business has no existence without her |
The evaluative point: the sole trader form suits a small, low-risk business where the owner values control. It becomes a problem when the business needs more capital than one person can raise, or when the risk grows large enough that unlimited liability becomes frightening.
5Partnerships
A partnership is a business owned by two or more people who share the capital, the decisions and the profits. Some countries limit the number of partners an ordinary partnership may have. The form is common among professionals: architects, lawyers, doctors, accountants.
Partners usually sign a deed of partnership, a legal agreement that sets out how much capital each puts in, how profits and losses are shared, who does what, how decisions are made, and what happens if a partner leaves or dies. Without one, disputes are hard to settle.
In an ordinary partnership every partner has unlimited liability, and it is joint: each partner can be made to pay the whole firm's debts, including debts run up by the other partners. Some countries allow a partner who invests but takes no part in running the firm, a sleeping partner (or silent partner), to have limited liability, and some allow limited liability partnerships. Name the form in the case and do not assume.
Take Mbeki & Lund, two invented architects who joined forces to bid for larger contracts.
| Advantages | Disadvantages |
|---|---|
| More capital than one owner could raise | Unlimited liability, for your partner's decisions as well as your own |
| Shared workload and specialisation: one designs, one manages projects | Profits are shared |
| Shared skills, ideas and contacts | Disagreements slow or block decisions |
| Still private: no duty to publish accounts in most cases | Capital is still limited to what the partners have |
| Cover for illness and holidays | The partnership may have to be dissolved if a partner leaves or dies |
6Companies: privately held and publicly held
A company is an incorporated business owned by shareholders. Each share is a small piece of ownership. Shareholders have limited liability, may receive part of the profit as dividends, and vote, usually one vote per share, to elect the board of directors that runs the company. There are two kinds, and the difference is who is allowed to buy the shares.
A privately held company sells its shares privately, to people the existing owners choose: family, friends, employees, private investors. Its shares are not traded on a stock exchange, and a shareholder usually cannot sell without the agreement of the others. Many are family firms. (In the UK such a firm carries "Ltd" after its name; the label varies by country.)
A publicly held company has its shares traded on a stock exchange, so anyone can buy them. A company becomes publicly held through a flotation, or initial public offering (IPO): it offers shares to the public for the first time. (In the UK such a firm carries "plc".)
| Privately held company | Publicly held company | |
|---|---|---|
| Who can buy shares | only people the owners agree to | anyone, on a stock exchange |
| Capital available | limited to the owners' circle and loans | very large sums from the public |
| Control | usually stays with founders or a family | can pass to whoever buys enough shares |
| Takeover risk | low: shares cannot be bought without consent | real: a rival can buy a majority on the market |
| Information published | less | full annual accounts and reports, open to all |
| Cost of setting up and running | moderate | high: flotation fees, legal and reporting costs |
| Pressure from shareholders | patient owners can plan long term | investors may demand short-term profit and dividends |
Both kinds share the advantages of incorporation: limited liability, which makes investors willing to put money in; continuity, since the company outlives any one shareholder; and a status that makes lenders and suppliers more willing to deal with it. Both share the costs too: registration, legal requirements, and accounts that must be filed.
What floating does to control. Figure 3 shows the trade you make as you move from left to right across the four forms.
The loss of control is the part candidates state and rarely show. Halden Foods is an invented privately held company with 1,000,000 shares, of which the Halden family own 600,000. To fund a new factory it floats and issues 500,000 new shares to the public.
The family did not sell a single share, yet its stake fell from a majority to a minority, as Figure 4 shows. That is dilution. With 60% the family could outvote everyone; with 40% it can be outvoted if the other shareholders act together, and a rival could try to buy the 60% it does not own. Publicly held companies also show a divorce of ownership and control: the thousands of shareholders who own the company leave the running of it to professional directors and managers, whose interests may not be the same as theirs.
7For-profit social enterprises
A social enterprise is a business that trades to achieve a social or environmental purpose, and that uses most of its surplus to pursue that purpose rather than to reward owners. It judges itself on more than profit: on the triple bottom line of people, planet and profit that the guide uses to define sustainability. The guide names three for-profit forms.
Private sector companies (with a social purpose). A company owned privately, with limited liability, whose stated purpose is social or environmental. It makes a profit and may pay a limited dividend, but reinvests most of it in the mission. Some countries have created special legal forms for such companies; others use an ordinary company with the purpose written into its founding documents. Thread Forward Ltd (invented) makes workwear and deliberately employs and trains refugees, putting most of its profit into training places.
- Strengths: limited liability; can sell shares to impact investors, who want a social return as well as a financial one; customers and staff are drawn to the purpose.
- Weaknesses: mission drift, the risk that the need to stay profitable slowly pushes the purpose aside; ordinary investors may see a capped dividend as unattractive; the business must prove its social claims or be accused of using them as marketing.
Public sector companies. A company owned by the government that sells goods or services, covers as much of its costs as it can from sales, and pursues a social aim set by the state. State-owned railways, postal services, water and energy companies are common examples around the world. Metro Norte (invented) is a city-owned bus company that charges fares but keeps running unprofitable routes to outlying villages because the council wants every village connected.
- Strengths: provides services that private firms would drop as unprofitable; can keep prices affordable; profits, if any, return to the public.
- Weaknesses: losses are covered by taxpayers; without competition or a profit motive there may be little pressure to be efficient; managers may face political interference, and decisions may follow the electoral calendar rather than the business's needs.
Cooperatives. A business owned and controlled by its members, who are the people who use it or work in it, and run for their benefit. Each member has one vote, however much money they have put in, and profits are shared among members, usually in proportion to how much they buy from, sell to or work for the cooperative. There are three common types: worker cooperatives, owned by their employees; consumer (retail) cooperatives, owned by their customers; and producer cooperatives, owned by producers who pool their output. Valle Verde (invented) is a producer cooperative of 40 dairy farmers who share a bottling plant and sell their milk together.
- Strengths: a small farmer alone has no bargaining power against a supermarket chain, but 40 selling together do; members share costs, such as one bottling plant instead of forty; members are motivated because they own the business; decisions are democratic, and profit stays in the community.
- Weaknesses: one member, one vote can make decisions slow; outsiders cannot buy a stake, so raising large sums is hard; members may lack management skills and be reluctant to pay for professional managers; disagreement between members about the balance of profit and purpose.
8The non-profit social enterprise: NGOs
A non-governmental organization (NGO) is a non-profit organisation, independent of government, that pursues a social, environmental or humanitarian purpose. "Non-profit" does not mean it never makes a surplus. It means no owner or member takes one: every surplus is put back into the cause. Many NGOs are registered charities, though the two words are not identical.
Clearwell (invented) is an NGO that installs and maintains water filters in villages without safe drinking water. It is funded by:
- donations from individuals and companies
- grants from governments, international bodies and foundations
- trading income, for example selling filters at cost to schools that can afford them
- volunteers, whose time replaces paid labour
It is run by a board, often called trustees, who must make sure the money is used for the stated purpose.
- Strengths: public trust, which attracts donations and volunteers; freedom to act where governments and profit-seeking firms do not; in many countries, tax advantages on income and on donations.
- Weaknesses: income is unpredictable, rising and falling with donors' moods and the economy; a large grant can come with conditions that pull the NGO away from its own priorities; donors want to see money spent on the cause, so the NGO may underinvest in the systems and staff it needs; it competes with other NGOs for the same donors; it must account publicly for every euro, and one scandal damages trust in the whole organisation.
Figure 1's bottom row is short for a reason: the NGO is the only non-profit form the guide names. The table below sets the four social enterprise forms side by side.
| Private sector company | Public sector company | Cooperative | NGO | |
|---|---|---|---|---|
| Owned by | private shareholders | the government | its members | nobody takes profit |
| Controlled by | directors, elected by shareholders | managers answering to government | members, one member one vote | a board of trustees |
| Surplus goes to | mostly the mission; a limited dividend | the mission and the public purse | members, by use or work | the cause, all of it |
| Main finance | sales, impact investors | sales, government subsidy | sales, members' contributions | donations, grants, some sales |
9Choosing the right form
Every exam question on this subtopic that says discuss, evaluate or recommend comes down to a trade. Weigh these for the business in the case.
- How much capital does it need? More capital pushes the business to the right of Figure 3.
- How much risk is there? A risky venture makes limited liability worth its cost.
- How much do the owners value control and privacy? Founders who want to keep control stay private.
- What is the purpose? If the purpose is social, a social enterprise form tells customers, staff and investors so, and may unlock finance that an ordinary company cannot reach.
- What can it afford to run? Flotation and reporting cost money that a small firm does not have.
There is rarely one right answer. The marks go to the answer that picks one, shows why it beats the alternative for this business, and says what would change the decision.
10Where marks are lost
Confusing a publicly held company with the public sector. A publicly held company is privately owned; only its shares are publicly traded. A public sector company is owned by the government.
Defining limited liability without saying whose and to what. "The owner is not fully liable" scores nothing. The shareholders' loss is limited to the amount they invested, because the company is a separate legal person.
Saying a sole trader works alone. Sole refers to ownership. A sole trader can employ many people.
Calling any big business a publicly held company. Many very large firms are privately held. The test is whether the shares are traded on a stock exchange, not size.
Stating "loss of control" without showing it. Show the dilution with the numbers in the case, and say whether the owners fall below 50%.
Assuming non-profit means making no surplus. An NGO can make a surplus; it cannot distribute one to owners.
Treating a cooperative as a kind of partnership. A cooperative has members, one vote each, however much capital they put in, and in many countries it is registered as a separate legal body whose members have limited liability. Check what the case says.
Listing advantages without applying them. "Partnerships have more capital" is theory. "Mbeki & Lund can bid for the stadium contract because the two partners together meet the insurer's capital requirement" is application.
11Write it right
- Name the form and state the feature that matters: ownership, control, liability, legal identity, or finance.
- Distinguish with "whereas" and set the two things against each other on the same feature: "a privately held company sells shares only to people its owners approve, whereas a publicly held company's shares are traded on a stock exchange."
- For liability, say whose, to what, and why: the shareholders, limited to what they invested, because the company is a separate legal person.
- Show dilution with the case's numbers, and say what the new percentage means for control.
- Apply every advantage and disadvantage to the business, its owners and its situation.
- For a social enterprise, name the purpose and the tension: the need to stay solvent against the mission, and who gains from the surplus.
- In a "recommend", choose one form, justify it against the rejected option, and add a condition that would change your answer.
- End a 10-mark answer with the limits of the case: what you do not know that would change the decision.
12Try it
Marks in brackets. Answers and marker's notes are at the end.
Case: Kavi Solar Ltd (an invented business). Kavi Solar is a privately held company that makes low-cost solar lanterns for households without reliable electricity. Founders Priya and Arun Kavi own 1,600,000 of its 2,000,000 shares; the rest belong to employees. The founders have always promised that lantern prices will stay affordable, even if that means lower profits. Kavi Solar needs €9 million for a second factory. Option A: float on a stock exchange, issuing 1,200,000 new shares to the public. Option B: stay private and sell 500,000 new shares to an impact investment fund, which will join the board and requires the company to keep its affordable-pricing promise in writing.
Q1. Define the term limited liability. 2 marks
Q2. Distinguish between a public sector company and a publicly held company. 4 marks
Q3. Forty dairy farmers each sell their milk separately to a supermarket chain. Explain two advantages to the farmers of forming a cooperative. 4 marks
Q4. Calculate the founders' percentage of Kavi Solar's shares after Option A and after Option B, and comment briefly on the difference. 4 marks
Q5. Explain two challenges an NGO faces in financing its work. 4 marks
Q6. Recommend whether Kavi Solar should choose Option A or Option B. 10 marks
13In one breath
The private sector is privately owned, the public sector government owned, and a publicly held company is private however "public" it sounds. Sole traders have one owner and partnerships two or more; both are unincorporated, so the owners have unlimited liability and, in a partnership, liability for each other too; both are simple, private and short of capital. Companies are incorporated, separate legal persons whose shareholders have limited liability, losing only what they invested. A privately held company sells shares only to people the owners approve, keeping control; a publicly held company floats on a stock exchange and gains large capital at the cost of disclosure, expense, takeover risk and dilution, so a 60% stake can become 40% without a share being sold. Social enterprises trade for a social or environmental purpose: private sector companies with a mission, public sector companies owned by the state, and cooperatives owned by their members with one vote each are for-profit; the NGO is the non-profit form, funded by donations, grants and some trading, with every surplus returned to the cause. Choosing a form trades capital against control, risk against cost, and profit against purpose.
Answers
Q1. Limited liability means that the owners (shareholders) of a business are responsible for its debts only up to the amount they have invested in it, so their personal assets cannot be taken to pay the business's debts. 1 for the loss being limited to the amount invested, 1 for personal assets being protected. "The owner is not responsible for debts" scores 0: they lose their investment.
Q2. A public sector company is owned and controlled by the government, and usually pursues a social aim such as keeping a service running for everyone, with any losses covered by public money, whereas a publicly held company is in the private sector: it is owned by private shareholders, its shares are traded on a stock exchange, and it normally aims to make a profit for them. So the two differ in ownership and in their main objective, even though both have "public" in the name. 1 for each accurate description, 2 for a clear point of difference drawn on ownership and one on objective. Two correct definitions with no comparison score 2.
Q3. Bargaining power: each farmer alone is a tiny supplier the supermarket can replace, so it can push the price down; forty farmers selling together supply a large share of the chain's milk, so they can negotiate a better price. Shared costs: the farmers can buy one bottling plant, lorry or marketing campaign together instead of forty, lowering each farmer's cost per litre. Also accept: democratic control with one vote each, so no large farmer can dominate; profit shared in proportion to milk supplied. for each advantage, 1 for identifying it and 1 for explaining it in the farmers' situation. A generic list of cooperative features scores 1 per advantage at most.
Q4.
Under Option A the founders fall from 80% to exactly 50%, so they no longer hold a majority; if the other shareholders vote together, the founders can be blocked. Under Option B they keep 64%, a clear majority, so they keep control of decisions such as pricing. 1 for both totals, 1 for each correct percentage (own figure rule: a wrong total carried through correctly keeps the percentage mark), 1 for a comment that explains that 50% is not a majority, or that B keeps control. A correct calculation with no comment scores 3.
Q5. Any two, explained. Unpredictable income: donations rise and fall with the economy and with public attention, so an NGO cannot be sure it can fund projects such as the upkeep of filters it has already installed. Conditions attached to grants: a large funder may pay only for the projects it prefers, pulling the NGO away from its own priorities. Pressure to keep overheads low: donors want their money to reach the cause, so the NGO may underinvest in staff and systems. Competition for donors: many NGOs appeal to the same people. for each challenge, 1 for identifying it and 1 for explaining why it arises from the NGO's non-profit, donation-based form. A challenge that could apply to any business, such as "rising costs", scores 0 unless linked to how an NGO is financed.
Q6. A top-band answer considers both options, uses the case, and chooses. For A: flotation can raise the full €9 million, and more later; the company gains status and a market for employees' shares. Against A: the founders fall to exactly 50% and lose their majority (Q4); new investors may push for higher prices and dividends, which threatens the affordable-pricing promise that is the purpose of the business; flotation and reporting are expensive; the company becomes open to takeover. For B: the founders keep 64%; the fund shares the social purpose and will hold the company to it; less cost and disclosure than a flotation. Against B: the case does not say whether 500,000 shares will raise the full €9 million; a fund on the board still reduces the founders' freedom; one large investor is a single point of dependence. A strong recommendation: Option B, because Kavi Solar's purpose is affordable lanterns, and only B protects both the founders' control and the pricing promise, while A puts both at risk for capital the company may not need all at once. Condition: if the fund cannot supply the full €9 million, Kavi Solar should build the factory in stages rather than float. The answer ends with the limits of the case: no share price, so no way to check what either option raises; no information on the fund's own return demands. Paper 1 Section B markbands. 9–10 needs a clear choice justified against the rejected option with evidence from the case, balance, and the limits of the information recognised. A balanced answer with no decision cannot go above 6. An answer that ignores the social purpose of the business cannot reach the top band, because it misses the tension the case is built on.
Educerie · written from the published IB Diploma Programme Business Management guide, first assessment 2024, section 1.2 Types of business entities. Original text, examples and questions. Diagrams drawn by Educerie. Last reviewed 25 September 2026.