Revision Notes
Pearson Edexcel IAL Economics: Industrialisation, aid, debt relief, institutions (YEC11) – Revision Notes
Condensed revision notes on the Lewis model, tourism, primary industries, debt relief, aid and the World Bank, IMF and NGOs for Edexcel IAL Economics.
- Subject
- Economics
- Level
- A LEVEL
- Topic
- Industrialisation, aid, debt relief and international institutions
- Author
- Marlbridge Academic Team
- Updated
Aligned to Pearson Edexcel A Level Economics (YEC11), Issue 2, June 2018. Official specification .
Syllabus page (what it covers and how it is assessed): Pearson Edexcel A Level Economics.
Syllabus points this page covers
YEC11 (A Level)
- 4.3.6 Growth and development in developing, emerging and developed economies
Found an error? Report a correction.
Need help with this topic? Request a free trial class for A Level Economics (YEC11).
These notes condense parts c and d of item 3 in section 4.3.6 of the Pearson Edexcel International Advanced Subsidiary/Advanced Level in Economics (YEC11) specification, Issue 2, June 2018. The specification places Unit 4 among the International A2 units, so it applies to the full International Advanced Level only. For explanations read the study guide, then test yourself with the practice questions. Other useful pages: the course hub, the checklist, exam preparation and the free diagnostics. Every number here is invented.
Definitions
| Term | Meaning |
|---|---|
| Industrialisation | shift of resources from low-productivity farming to manufacturing and modern industry |
| Surplus labour | workers in the traditional sector with zero marginal product |
| Turning point | the stage when surplus labour runs out and wages in the traditional sector must rise |
| Leakage (tourism) | tourist spending that leaves the local economy through imports and profit repatriation |
| Value added | value of output minus the cost of intermediate inputs |
| Debt service ratio | annual debt payments (interest plus principal) divided by export earnings, times 100 |
| Debt relief | cancellation, reduction or rescheduling of debt |
| Aid | concessional transfer of resources from donors to poorer countries |
| Tied aid | aid whose use is restricted to goods or services bought from the donor country |
| NGO | non-profit organisation independent of government |
Formulas and a worked reminder for each
| Measure | Formula | Mini example (invented) |
|---|---|---|
| Average product | output / workers | 2,400 / 80 = 30 |
| Modern wage | subsistence wage x (1 + premium) | 30 x 1.30 = 39 |
| Profit | output - wage bill | 25 workers x (60 - 39) = 525 |
| New jobs from reinvestment | profit x reinvestment share / capital per job | 525 x 0.8 / 105 = 4 |
| Multiplier from local spending | 1 / (1 - share spent locally) | 1 / (1 - 0.5) = 2 |
| Value added | output - intermediate inputs | 900 - 350 = 550 |
| Debt service ratio | debt service / exports x 100 | 150 / 600 x 100 = 25% |
| Aid share of GNI | aid / GNI x 100 | 90 / 1,800 x 100 = 5% |
| Real value of tied aid | tied amount / (1 + price mark-up) | 200 / 1.25 = 160 |
Industrialisation and the Lewis model
Method: telling the Lewis story in steps
- The traditional sector has surplus labour with zero marginal product.
- The modern sector offers a wage a little above subsistence, so workers move.
- Farm output does not fall, because the workers moved added nothing.
- Modern firms earn profit, since output per worker exceeds the wage.
- Profits are reinvested, so capital grows and new jobs appear.
- More surplus labour moves, and the cycle repeats.
- At the turning point the surplus is gone, so farm output would fall and wages rise.
Evaluation prompts
- Is marginal product really zero, and for all seasons?
- Are profits reinvested in the country or spent on luxuries and imports?
- Does investment use capital-intensive methods that create few jobs?
- Does urban unemployment emerge before modern jobs do?
- Are there supporting roads, power, schooling and stable policy?
Worked reminder: Lewis rounds
Surplus farm labour is 24 and the modern sector starts with 12 workers on a wage of 39, each adding 60. Profit = 12 x (60 - 39) = 252. With 75% reinvested and capital of 63 per job, new jobs = 252 x 0.75 / 63 = 3. Modern employment becomes 15, so 9 surplus workers remain. Repeat until employment reaches 24, then the turning point arrives.
Tourism, primary industries and debt relief
| Strategy | Gains | Drawbacks |
|---|---|---|
| Tourism | foreign exchange, jobs, multiplier, infrastructure | leakages, seasonality, environmental pressure, dependence on source markets |
| Primary industries | uses comparative advantage, quick export earnings, rural jobs | volatile prices, concentration, resource depletion, little value added |
| Debt relief | frees funds for health, education and investment | moral hazard, lender losses, conditions, rescheduling raises total interest |
Chains of reasoning to learn
- Tourism: more arrivals, more spending, local income rises, further spending, multiplier. Higher leakage, smaller multiplier.
- Primary to processed goods: process locally, higher value added per tonne, more jobs and export earnings, less exposure to raw price swings.
- Debt relief: lower debt service, more government funds, spending on human capital and infrastructure, productivity and growth rise.
Worked reminder: leakage
Tourists spend 80m. Leakage is 35%, so 80 x 0.65 = 52m stays. With 0.5 of extra income spent locally, the multiplier is 2, so total local income created is 52 x 2 = 104m.
Worked reminder: debt relief
Debt is 4,000, exports are 800 and annual debt service is 240, so the ratio is 240 / 800 = 30%. If 20% of the payments are waived, payments fall to 192 and the ratio to 24%. The 48 freed is 48 / 240 = 20% of the old payment. Say what the 48 is spent on, because the benefit depends on that.
Tourism evaluation checklist
- Scale: share of GDP and of jobs.
- Ownership: local firms keep more profit than foreign chains.
- Linkages: local farms and crafts supply hotels, so leakage falls.
- Risk: dependence on few source countries, seasons and exchange rates.
- Sustainability: damage to beaches, water and reefs lowers future income.
Primary industries evaluation checklist
- Does the country have a real comparative advantage in the product?
- Are prices stable enough to plan, or does a fall cut government revenue?
- Can processing keep more value at home?
- Are workers, land and the environment protected from depletion?
Aid
| Type | Key point |
|---|---|
| Bilateral | government to government, may serve donor interests |
| Multilateral | through institutions, usually less politically driven |
| Grant | no repayment |
| Concessional loan | repaid at below-market interest |
| Tied | cuts real value |
| Humanitarian | immediate relief, not long-run growth |
| Project and technical | capital works, expertise and training |
Evaluation: effect depends on the use of funds, governance, how well the economy can absorb the money, predictability, and whether it displaces local effort. Aid can fund public goods markets underprovide. It can also encourage dependency or corruption.
The World Bank, the IMF and NGOs
| Body | Main role | Typical criticism |
|---|---|---|
| World Bank | long-term loans and advice for development and poverty reduction | conditions, project mismatch with local needs |
| IMF | monitors economies, temporary loans for balance of payments difficulty, policy advice | austerity conditions, voting power tied to contributions |
| NGOs | local projects, emergency relief, campaigning | small scale, donor dependence, limited accountability |
Must-know distinctions
- World Bank is long-term development; IMF is short-term balance of payments and stability.
- Bilateral aid comes from one government; multilateral aid is pooled.
- Tied aid restricts where money is spent; untied does not.
- Cancellation lowers the debt; rescheduling extends the repayment period.
- Leakage lowers the multiplier; a high local spending share raises it.
Writing an assessment paragraph
Use a four-step pattern for any strategy.
- Point: state one effect on development.
- Chain: link it to output, jobs, incomes or living standards in two or three steps.
- Limit: say what weakens it, such as leakage, conditions or poor governance.
- Judgement: state when it works best and compare it with another strategy.
Example for aid: tied aid of 300 with a 20% price mark-up has real value 300 / 1.2 = 250, so the recipient loses 50. Judgement: untied aid with local control usually delivers more for development.
Evaluation prompts across the unit
- Short run versus long run: relief and emergency aid help quickly, industrialisation takes years.
- Who gains and who bears the cost, within the country and abroad?
- Does the strategy build lasting capacity or create dependency?
- Does it rely on good governance that may be missing?
Quick self-test
- A farm sector has 150 workers, output 4,500. State the subsistence wage.
- The modern wage premium is 30%. Find the modern wage.
- 40 modern workers each add 80 output at the wage from question 2. Find profit.
- Tourists spend 120m and leakage is 40%. How much stays?
- If residents spend 50% of extra income locally, find the multiplier.
- Raw output sells for 700 with 150 of inputs. Find value added.
- Debt service is 210 and exports are 1,050. Find the debt service ratio.
- Which institution lends mainly for long-term development?
- Define tied aid.
- Give one limit of NGOs.
Answers
- 4,500 / 150 = 30.
- 30 x 1.30 = 39.
- 40 x (80 - 39) = 1,640.
- 120 x 0.60 = 72m.
- 1 / (1 - 0.5) = 2.
- 700 - 150 = 550.
- 210 / 1,050 = 20%.
- The World Bank.
- Aid whose spending is restricted to purchases from the donor country.
- Small scale, dependence on donor funding, or limited accountability (any one).
Where marks are usually lost
- Describing the Lewis model but leaving out the reinvestment and turning point.
- Using the wrong base for a percentage, such as dividing debt service by GDP instead of exports.
- Giving the multiplier without showing the local spending share.
- Treating tourism income as pure gain without subtracting leakage.
- Mixing up the World Bank and IMF roles.
- Saying aid or debt relief “helps development” with no chain of reasoning.
- Giving advantages only, with no judgement on which strategy matters most or when.
- Using real country statistics from memory. Use only the data given, and label any examples as illustrative.
Official syllabus
Pearson Edexcel International Advanced Subsidiary/Advanced Level in Economics specification, Issue 2, June 2018, first assessment June 2020, published by Pearson Education Limited: section 4.3.6, Growth and development in developing, emerging and developed economies, item 3, parts c and d.
Get free revision emails (optional)
Occasional emails with practice questions, worked explanations and links to free resources for the qualification and subjects you choose. No spam, and you can unsubscribe from any email. The free tools on this site never need an email.
Related resources
-
Study guides
Pearson Edexcel IAL Economics: Industrialisation, aid, debt relief, institutions (YEC11)
Study guide to the Lewis model, tourism, primary industries, debt relief, aid, the World Bank, IMF and NGOs for Edexcel International A Level Economics.
Economics · Pearson Edexcel · A Level
Read guide -
Practice questions
Pearson Edexcel IAL Economics: Industrialisation, aid, debt relief, institutions (YEC11) – Practice Questions
Original practice questions with worked answers on the Lewis model, tourism, debt relief, aid, the IMF, World Bank and NGOs for Edexcel IAL Economics.
Economics · Pearson Edexcel · A Level
Try questions -
Study guides
Pearson Edexcel International Advanced Level Economics: Labour market failure (YEC11)
Study guide to labour immobility, minimum and maximum wages, taxes, training and anti-discrimination policy for Edexcel International A Level Economics.
Economics · Pearson Edexcel · A Level
Read guide
Related articles
-
teaching
A Level tuition in Dubai: Cambridge or Pearson Edexcel International A Level?
Schools in Dubai and Abu Dhabi teach either Cambridge International AS & A Level or Pearson Edexcel International A Level. How the two are structured, why it matters for tuition, and how online classes from Lahore work.
9 October 2026
-
curriculum guides
Choosing subjects at IGCSE and A Level
How subject choices at 14 and 16 affect university options later, and how to keep pathways open without overloading a timetable.
28 July 2026
Studying this with a teacher
Working through Economics A LEVEL?
This page is free and stays free. If you would rather be taught it, Marlbridge runs Economics classes one-to-one and in small groups of up to 15, online in your own time zone. The first trial class is free. WhatsApp replies within an hour (8am–11pm Pakistan time, every day); email the same day.
Pearson Edexcel Economics teachers at Marlbridge