Choices, scarcity and opportunity cost
Money and time are scarce: we cannot have everything. So we choose. The opportunity cost of a choice is the next best thing you give up.
- Spend 70 on a phone → you give up the 60 course.
- Work 10 hours a week → you give up 10 hours of study or rest.
A smart choice compares benefits now with benefits later. A course may cost today but raise your wage in future.
The role of labour: value, rights, unions and entrepreneurs
What sets the value of your work?
- Skills and education: a trained electrician earns more than an untrained helper.
- Demand: if many employers need nurses or coders and few people can do it, wages rise.
- Risk and hard conditions: night shifts or dangerous work often pay extra.
- Experience and location.
Rights and responsibilities
| Rights of workers | Responsibilities of workers |
|---|---|
| at least the minimum wage; safe workplace; fair hours and breaks; no discrimination; to refuse unsafe work; to join a union | come on time; do the job well; follow safety rules; respect co-workers; be honest |
How labour organizes
A trade union is a group of workers who join together. Through collective bargaining the union and employer agree a contract on pay and conditions. If talks fail, workers may strike. Unions exist in most countries, at the level of one workplace, a whole industry or the nation (for example national union federations in India and Canada), and the UN's International Labour Organization sets world standards.
Entrepreneurs
An entrepreneur starts a business and takes the risk. Common traits: spotting a need, taking calculated risks, hard work, creativity, learning from failure. Example: a young person in Kerala who starts a homestay, or one in Canada who builds an app company.
Public and private sectors and stakeholders' views
| Public sector | Private sector | |
|---|---|---|
| Owner | government | individuals, companies, shareholders |
| Main aim | service to all | profit |
| Money from | taxes, fees | sales, investors |
| Examples | public schools, hospitals, railways, police | shops, factories, banks, apps |
Natural resources: an economic issue
Forests, minerals, oil, fish and water create jobs and export money. But taking them can harm land, water and the people who live there, including Indigenous communities. Questions: who owns the resource? How fast should it be used? Who gets the profit? How is the land repaired?
Why stakeholders disagree
A stakeholder is anyone affected by a decision. A mine company wants profit, workers want jobs, local residents want clean water, environmental groups want protection, and government wants taxes and votes. Each looks at the same plan from where they stand.
Economic variation between communities and the local economy
Cost of living
The cost of living is how much money you need for a normal life in a place: housing, food, transport, energy and services.
- Big cities: high rent, but more jobs and higher wages.
- Remote areas: food and fuel cost more because they must travel far.
- Variables: inflation, rent, transport costs, taxes, wages and climate (heating or cooling).
Why employment rates differ
- The main industry (a factory town suffers if the factory closes).
- Education and skills of local people.
- Transport links and internet.
- Seasons (tourism, fishing, farming).
Businesses in the local economy
Positive: jobs, wages spent in local shops (a multiplier effect), taxes, training, sponsoring local events. Negative: pollution, traffic, higher rents, small shops losing customers, profit leaving the area.
What you can do
- Shop locally when it makes sense.
- Learn skills that local employers need.
- Volunteer and take part in local decisions.
- Use resources carefully.
Try it: your monthly budget
Use the sliders in the 3D. Set a wage, the hours you might work, and where you live. Is anything left? Then on paper list three things your family spends on each month, and ask: which costs would change if you moved to a big city or a remote village?
Key formulas and definitions
- Opportunity cost = value of the next best option given up
- Monthly income = wage per hour × hours per week × 4
- Saving = income − living costs
- Wage factors: skills, education, demand, risk, experience, place
- Public sector: government, service | Private sector: owners, profit
- Stakeholder: anyone affected by a decision
Worked examples
1. Asha earns 15 per hour and works 12 hours a week. Her monthly living cost is 600. Does she save?
Income = 15 × 12 × 4 = 720. Saving = 720 − 600 = 120. Yes, she saves 120 a month.
2. You can work a Saturday shift for 80 or go on a free school trip. What is the opportunity cost of the trip?
The 80 you would have earned (plus anything else you give up). Even a free trip has an opportunity cost.
3. Why might a nurse in a remote town be paid more than one in a city?
Few nurses want to live there (low supply), the need is high, and living costs such as food and fuel are higher, so employers pay more to attract staff.
4. A mine is planned near a river town. Give the view of three stakeholders.
Mine company: profit from minerals. Local workers: well-paid jobs. Residents and Indigenous community: worry about water pollution and land damage. Government must balance jobs, taxes and the environment.
Common mistakes
- Thinking something free has no cost. Your time always has an opportunity cost.
- Comparing wages without comparing living costs. A higher wage in an expensive city may leave less.
- Thinking the public sector never makes money or the private sector never serves people.
- Believing a new business only brings good things. It has positive and negative impacts.