IB Economics SLTopic 4 — The Global EconomyPaper 1 & 2Core idea~9 min read
Sustainable Development and the SDGs
Growth is about producing more. Development is about people’s lives getting better. Sustainable development adds a third condition: that the improvement can carry on, because it has not been bought by using up the things the next generation will need.
📘 What you need to know
Sustainable development meets the needs of the present without reducing the ability of future generations to meet their own needs.
Growth is not development. Growth is more output; development is better living standards, health, education and choice.
In 2015 United Nations member states agreed the 2030 Agenda for Sustainable Development.
At its centre are the 17 Sustainable Development Goals, covering poverty, health, education, inequality, growth, climate, oceans and forests.
The goals recognise that ending poverty cannot be separated from health, education, equality and the environment.
The SDGs work as both a target to aim at and a metric for measuring progress.
Development has three dimensions: economic, social and environmental. Sustainable development sits where all three meet.
The goals are not legally binding, so progress depends on national policy and on financing.
Growth, development, sustainability
These three words get used as if they mean the same thing, and the difference is worth marks. A country can grow while its people get no healthier. It can develop for a decade by cutting down its forests, and then find it has nothing left to cut. Sustainable development is the version that passes both tests: lives improve now, and the improvement can be maintained.
Viable means the economy and the environment are being managed together but people are being left out. Bearable means society and the environment are looked after but the economy is not growing. Equitable means growth is shared fairly but the environment is paying for it.
WORKED EXAMPLE
Explain the difference between economic growth and economic development. [4]
Step 1: define both
Economic growth is an increase in real output, usually measured by real GDP. Economic development is a sustained improvement in living standards, including health, education, income and choice.
Step 2: state the relationship
Growth usually helps development, because higher output raises incomes and gives the government more tax revenue to spend on schools and hospitals.
Step 3: show they can separate
But growth alone does not guarantee development. If the gains go to a small group, or come from extracting resources with no reinvestment, average income rises while most people’s lives do not change.
Growth is a means; development is the outcomeThe third step is the one that earns the top marks. Anyone can define both terms; the mark is for showing when they come apart.
The 17 goals
You will not be asked to recite all seventeen, but you should recognise them and be able to place one in the right dimension. Here they are in one place.
Goal
What it aims at
1 No poverty
End poverty in all its forms, absolute and relative
2 Zero hunger
End hunger and improve nutrition and farming
3 Good health and well-being
Healthy lives at every age
4 Quality education
Fair access to education and lifelong learning
5 Gender equality
Equality and opportunity for women and girls
6 Clean water and sanitation
Safe water and sanitation available to everyone
7 Affordable and clean energy
Energy that is reliable, modern and affordable
8 Decent work and growth
Growth that produces good jobs for all
9 Industry and infrastructure
Resilient infrastructure and innovation
10 Reduced inequalities
Less inequality within and between countries
11 Sustainable cities
Cities that are safe, inclusive and liveable
12 Responsible consumption
Producing and consuming with less waste
13 Climate action
Urgent action on climate change
14 Life below water
Protecting oceans and marine resources
15 Life on land
Protecting forests, soil and biodiversity
16 Peace and strong institutions
Justice, accountability and effective institutions
17 Partnerships for the goals
Finance and cooperation to deliver the rest
If an exam question hands you one of these goals, say which dimension it sits in and which other goals it pulls along with it. That is the connected thinking the SDGs were designed around.
Judging the SDGs
An evaluation question here is not asking whether the goals are nice ideas. It is asking whether a framework like this actually changes what governments do.
Strengths
Weaknesses
A shared set of targets that everyone measures the same way
No legal force, so no country can be made to comply
Progress can be tracked, compared and published
Data is weakest exactly where the needs are greatest
Links poverty to health, education and the environment
Seventeen goals can pull against each other
Gives campaigners and lenders something to point at
The financing to deliver them is not guaranteed
Applies to rich countries too, not just poor ones
Progress has been uneven and some targets are off track
The strongest evaluation point is the conflict between goals. Goal 8 asks for sustained economic growth; goal 13 asks for urgent action on climate change. For an economy that runs on coal, doing both at once is genuinely hard, and saying so is far better than pretending the list is a menu with no trade-offs.
WORKED EXAMPLE
Plan: “Evaluate the view that economic growth conflicts with sustainable development.” [15]
1 Set-up
Define growth and sustainable development. Note the tension the question is pointing at: more output usually means more resource use and more emissions.
2 The case that they conflict
Growth raises energy use and emissions; industrialisation degrades land, water and air; the costs are negative externalities carried by people who did not cause them, including future generations.
3 The case that they do not
Growth funds the very things sustainability needs: clean energy investment, public transport, better regulation, and tax revenue for it all. Poor countries cannot afford environmental protection out of nothing.
4 What it depends on
The type of growth. Growth in services or renewables is very different from growth in coal-fired heavy industry.
5 Judgement with a reason
“Growth and sustainability conflict when growth is resource-intensive and the environmental costs are unpriced. They stop conflicting when the costs are priced in and the revenue funds cleaner production, so the real question is not whether to grow but what the growth is made of.”
Judge the type of growth, not growth itselfBring in a named country’s energy mix or a specific policy such as a carbon tax, and the answer stops being general.
💡 Exam tip
Learn the definition word for word. “Meets the needs of the present without compromising future generations” is quotable and precise.
Separate growth from development in your first paragraph. It frames everything that follows.
Name two or three goals rather than listing all seventeen, and say which dimension each belongs to.
Use goal conflicts as evaluation. Growth against climate is the clearest one.
Mention that the goals are not binding. It explains why progress is so uneven.
Link back to externalities if you have covered them. Sustainability is largely a question of unpriced costs.
⚠️ Common mix-up
Using growth and development as synonyms. One is output, the other is living standards.
Treating sustainability as only environmental. It has an economic and a social dimension too.
Thinking the SDGs are legally enforceable. They are agreed targets, not law.
Assuming poor countries alone need to develop. The goals apply to every member state.
Listing goals with no analysis. A list is knowledge; the marks are in the trade-offs between them.
Arguing growth is always bad for the environment. It depends entirely on what is being produced and how.
Up next: Single Indicators of Development — how development is actually measured, starting with the number everyone reaches for first and its limitations.
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