paper 3

Question 1

What does the acronym POPSICLE stand for in the context of micro and macro economics?

Answer 1

POPSICLE stands for price, output, productivity, structure of the market, inefficiency, competition, labour market, externalities

Question 2

DIGESTIF

Answer 2

Development: Human development, sustainability
Inflation: Cost push / demand pull factors, expectations
Growth: Impact on short run / long run growth paths
Employment: Jobs, natural rate of unemployment
Structure of Economy: Pattern of GDP, jobs, investment, incomes
Trade: Trade balance, current account, capital flows
Inequality: Effects on income and wealth inequality
Fiscal Balance: Impact on state borrowing, debt, tax burdens

Question 3

explain why productivity is measured by ‘GDP per hour worked, nominal values at PPPs’.

Answer 3

Productivity must be GDP / input (or per hour worked)
to have sense of output relative to input (1) sense of
relative efficiency (1)
* Nominal values meaning e.g. inflation is included in
the figures (1) so useful firms when calculating how
much revenue they have earned (1)
* PPPs means e.g. that the relative cost of living is taken
into account, or the figures are adjusted according to
the relative purchasing power (1)
* Makes comparison easier across countries (1) and
time (1) and meaningful in the same currency (1)

US produces 28% more per hour (1) than the UK (1)

Question 4

topics likely to be examined in paper 3

Answer 4

• inflation
• economic growth
• unemployment
• market failure and government intervention
• interest rates
• globalisation
• exchange rate flucuations
• wage differentials
• income and wealth inequality
• national minimum wage
• FDI

Question 5

micro effects of depreciation

Answer 5

🔹 1. Increased Costs for Importers 📦
A weaker currency makes imported raw materials and components more expensive →

Increases variable costs for firms reliant on imports →

Leads to a leftward shift of the supply curve (or higher MC/AC) →

📈 May cause higher prices for consumers and reduce producer surplus

🔹 2. Improved Competitiveness for Exporters 🚢
Export prices fall in foreign currency terms →

Makes UK goods/services more competitive abroad →

Increases demand for exports, shifting AR/MR curves right →

💰 Boosts revenues and profits for exporting firms

🔹 3. Import-Competing Firms Gain 🏭
Consumers switch to domestically produced substitutes as imports become dearer →

Demand rises for local alternatives →

Can increase output, reduce spare capacity and create jobs →

📊 Especially beneficial for industries like UK agriculture or textiles

🔹 4. Rising Input Costs Reduce Real Profits 📉
Non-exporting firms face higher input costs without higher revenue →

Profit margins shrink, especially in retail and manufacturing →

Firms may pass costs to consumers or cut back on investment →

🧾 Could lead to reduced dynamic efficiency in the long term

Question 6

evs for depreciation

Answer 6

↳ While depreciation can boost export demand and growth, its effectiveness depends heavily on the price elasticity of demand (PED) for exports and imports — if export demand is price inelastic, the increase in quantity demanded may be small, so the trade balance and AD might not improve significantly, limiting growth.
↳ Depreciation raises the cost of imported goods and raw materials, which can cause cost-push inflation. In developing countries where inflation expectations are less anchored, this inflation can spiral, reducing real incomes and harming living standards, especially among the poor who spend a higher proportion on essentials.
↳ Additionally, the short-term benefits may be offset by longer-term structural weaknesses, such as reliance on imported capital goods or energy, meaning production costs remain high and firms struggle to compete internationally despite the currency advantage.
↳ Government intervention is crucial: subsidies or support to import-dependent firms can mitigate cost increases, but this risks fiscal strain or market distortions if poorly managed. Without supportive policies, depreciation alone may worsen unemployment in sectors reliant on imports.
↳ Also, exchange rate volatility can create uncertainty for firms and investors, discouraging long-term investment needed for sustainable development, especially in countries without deep financial markets or hedging options.
↳ Lastly, some developing countries face ‘Dutch disease’ effects where currency depreciation harms non-export sectors by raising costs and reducing competitiveness, so the net impact depends on economic structure and diversification.

Question 6

micro policies to increase economic growth

Answer 6

🔹 1. Education & Training Programmes 🎓
Government invests in human capital (e.g. apprenticeships, STEM funding) →

Improves skills, productivity, and adaptability of the workforce →

Increases LRAS through more efficient and innovative workers →

📈 Boosts long-run growth and competitiveness

🔹 2. Deregulation in Key Markets 🏢
Reducing red tape in industries like energy or transport →

Lowers barriers to entry, encouraging competition and innovation →

Leads to greater productive and allocative efficiency →

📉 Supports long-term growth through more dynamic markets

🔹 3. Lower Corporation Tax 💼
Increases post-tax profits for firms →

Encourages reinvestment into capital, R&D and expansion →

Raises capital productivity and technological advancement →

⚙️ Contributes to growth in productive potential

🔹 4. Infrastructure Spending 🏗️
Investment in roads, broadband, transport →

Reduces costs and time delays for businesses (↓ frictional inefficiencies) →

Improves mobility of goods, services and labour →

🚆 Enhances efficiency and output capacity of the economy

🔹 5. Subsidies for Innovation and R&D 🔬
Government grants or tax credits for R&D activities →

Lowers private cost of innovation →

Encourages technological progress and product development →

💡 Drives dynamic efficiency and long-run growth

Question 7

harrod domar explained

Answer 7

1. Households save income → deposit in banks
   → This money is not spent, so it’s a withdrawal short-term.
2. Banks use savings to lend to firms
   → Banks don’t sit on savings; they lend them out to businesses.
3. Firms borrow to invest in capital goods (e.g. machinery)
   → So the money re-enters the economy as investment.
4. Investment increases productive capacity → long-run growth
   → Capital boosts supply-side growth, especially in developing countries.

Evaluation: Why It Doesn’t Always Work
1. Depends on Effective Use of Capital
Investment might go to inefficient or corrupt projects →

Capital is not used productively, even if savings are high →

Growth remains low despite investment →

Model assumes perfect efficiency, which isn’t realistic

2. Ignores Human Capital and Institutions
   Growth needs education, skills, good governance too →

Model only focuses on physical capital, not social or institutional factors →

Countries may invest a lot but still stay underdeveloped →

People matter as much as machines

3. Assumes Savings = Investment
   In many LICs, savings don’t always turn into investment →

Weak financial systems mean banks may not lend effectively →

Money may be saved but not channelled into growth →

Financial infrastructure matters too

Question 8

advantages of caps on rent prices

Answer 8

1. Improved Affordability
   Gov sets rent ceiling below equilibrium →
   → Reduces rent costs for tenants →
   → Increases affordability for low-income households →
   → Improves access to housing and living standards
2. Reduces Exploitation in Inelastic Markets
   Housing demand is price inelastic →
   → Without controls, landlords may charge excessive prices →
   → Price cap protects vulnerable groups from monopoly power →
   → ⚖️ Improves fairness in the housing market
3. Can Prevent Homelessness
   Lower rents →
   → More people able to maintain stable accommodation →
   → Reduces evictions and overcrowding →
   → Supports social cohesion and health outcomes
4. Frees Up Disposable Income
   Lower rent = ↓ proportion of income spent on housing →
   → Increases marginal propensity to consume (MPC) on other goods →
   → Boosts local business revenues →
   → Encourages positive spillovers in the local economy

Question 9

Micro disadvantages of price caps on rent

Answer 9

1. Disincentivises Supply
   Rent caps ↓ profitability for landlords →
   → Developers less willing to build or rent out properties →
   → Supply falls or stagnates →
   → Worsens housing shortages in the long term
2. Creation of Black Markets
   Rent ceiling may create excess demand →
   → Landlords may charge “under the table” fees →
   → Encourages illegal agreements and informal markets →
   → Reduces tenant protection and transparency
3. Decline in Quality of Housing
   Lower rents = ↓ revenue for landlords →
   → Less incentive to maintain or upgrade property →
   → Housing quality deteriorates →
   → Tenants may suffer from poor living conditions
4. Misallocation of Resources
   Tenants may stay in larger homes because rent is cheap →
   → Reduces mobility and efficient allocation of housing →
   → May prevent people who need housing most from getting it →
   → Increases market inefficiency

Question 10

Macro advantages of rent caps

Answer 10

1. Reduces Cost of Living
   Rent controls lower average housing costs →
   → Reduces upward pressure on the cost of living index →
   → Can help control wage inflation demands →
   → Supports macroeconomic stability and competitiveness
2. Supports Labour Mobility
   Affordable housing in cities →
   → Workers can afford to live closer to jobs →
   → Reduces commuting strain and increases productivity →
   → Helps economic efficiency and reduces unemployment
3. Increases Consumer Spending
   Lower rent = more disposable income →
   → Consumers can increase spending on other goods/services →
   → Boosts aggregate demand (AD) →
   → Stimulates economic growth via consumption
4. Promotes Social Stability
   Improved housing access for low-income groups →
   → Reduces inequality and risk of homelessness →
   → Improves health, education, and productivity in the long term →
   → Contributes to inclusive development and social cohesion

Question 11

Macro disadvantages of rent caps

Answer 11

1. Reduces Investment in Housing
   Lower rental returns →
   → Deters private investment in property development →
   → Slower growth in housing stock →
   → Leads to long-term supply-side constraints in the economy
2. Negative Impact on Construction Sector
   Developers may switch away from rental housing →
   → ↓ Construction activity and job creation →
   → Hurts one of the key sectors in GDP →
   → Slows down economic growth and tax revenue
3. Emergence of Black Market Distortions
   Price caps create shortages →
   → Underground renting and informal housing grows →
   → Loss of taxable income and less regulation →
   → Weakens trust in institutions and economic efficiency

🇬🇧 4. Potential Misallocation of Resources
Richer households may also benefit from cheap rent →
→ Reduces policy effectiveness in tackling inequality →
→ Subsidy may not be targeted efficiently →
→ Creates opportunity cost for better-targeted policies (e.g. housing vouchers)

5. Negative Wealth Effect on Homeowners
   Rent caps reduce rental income potential →
   → This can lower the market value of property as an asset →
   → Homeowners feel poorer due to the negative wealth effect →
   → Leads to reduced consumer spending → ↓ AD → potential slowdown in growth

Question 12

Discuss the challenges faced by international institutions like the IMF and World Bank in promoting global economic stability.

Answer 12

1. Debt Dependency and Moral Hazard
   IMF/World Bank provide loans to stabilise economies →
   → Governments may become reliant on external borrowing →
   → Reduces incentive to implement long-term reforms →
   → Creates moral hazard and long-term instability
2. Governance and Voting Power Imbalance
   Wealthier countries have more say in IMF/World Bank decisions →
   → Developing countries may feel underrepresented or ignored →
   → Reduces legitimacy and cooperation →
   → Weakens global trust and coordination
3. Global Spillover Effects Hard to Control
   Institutions focus on individual countries’ recovery →
   → But crises (e.g. financial crashes, pandemics) spread across borders →
   → Tools may not address systemic risk or contagion →
   → Makes it harder to ensure global economic stability
4. Implementation Capacity in Recipient Nations
   Many countries lack strong institutions to carry out IMF/World Bank programmes →
   → Delays or failures in reform and public investment →
   → Waste or misuse of funds →
   → Weakens credibility and effectiveness of interventions
5. Vulnerability to Commodity Price Shocks
   IMF often works with resource-dependent economies →
   → Commodity price crashes (e.g. oil, copper) lead to new crises →
   → External shocks undo previous progress →
   → Forces repeated bailouts → destabilises growth trajectory
6. Perception of Neoliberal Bias
   Institutions often promote liberalisation, privatisation, and deregulation →
   → May hurt developing economies by opening them up too soon →
   → Local backlash and protest (e.g. anti-IMF sentiment) →
   → Reduces policy space for long-term development

Question 13

disadvantages of a negative output gap

Answer 13

1. Unemployment Increases
   Actual output below potential →
   → Firms produce less, so need fewer workers →
   → Demand-deficient (cyclical) unemployment rises →
   → Lower income + ↓ consumer confidence = weaker aggregate demand
2. Wasted Resources
   Economy operating below full capacity →
   → Labour and capital are underutilised →
   → Leads to inefficiency and lower productivity growth →
   → Slows long-run economic development and standard of living
3. Falling Inflation or Deflation Risks
   Excess capacity → ↓ pressure on prices and wages →
   → Firms cut prices to stimulate demand →
   → Risk of deflation (esp. if confidence is low) →
   → Deflation spiral: real debt burden rises, discourages spending
4. Budget Deficits Worsen
   Lower output → ↓ incomes and profits →
   → Tax revenues fall + welfare payments rise (e.g. JSA) →
   → Budget deficit widens →
   → May require borrowing or future austerity

Question 14

eval points for negative output gap

Answer 14

1. Depends on the Size and Duration of the Gap
   A small or short-lived gap may self-correct →
   → Inflation expectations may remain stable →
   → No major rise in unemployment or fiscal strain →
   → May not justify large-scale intervention
2. Depends on Labour Market Flexibility
   If labour is flexible (e.g. part-time, gig work) →
   → Unemployment may not rise significantly →
   → Firms retain staff and cut hours instead →
   → Negative output gap appears less damaging than it is
3. Opportunity for Non-Inflationary Growth
   Spare capacity allows expansion without inflation →
   → Govt can use fiscal or monetary stimulus →
   → Push AD to close the gap sustainably →
   → Smart policy timing can turn a challenge into an opportunity
4. Depends on External Conditions
   Global recovery/demand can lift exports →
   → Increases AD even without domestic stimulus →
   → Export-led recovery helps close the gap →
   → Especially helpful for open economies like the UK
5. Government May Use Productive Time for Reforms
   Slow periods give gov’t time to reform tax, training, innovation etc. →
   → Increases long-run aggregate supply (LRAS) →
   → Lays foundations for sustainable growth →
   → More effective than short-term demand boosts

Question 15

EV points for potential problems that can occur with IMF/World Bank/NGO’s etc

Answer 15

1. Debt Dependency and Moral Hazard
   Depends on how funds are monitored and disbursed →
   → If the IMF/World Bank include strong accountability & transparency clauses →
   → Countries may be incentivised to reform rather than rely long-term →
   → Reduces moral hazard and promotes more sustainable stability
2. One-Size-Fits-All Conditionality
   Depends on how adaptive the conditionality is to local contexts →
   → If policy prescriptions are flexible (e.g. COVID-19 emergency lending had looser conditions) →
   → Better suited to each country’s political, social, and economic structure →
   → Increases chances of successful reform and long-term stability
3. Governance and Voting Power Imbalance
   Depends on ongoing reforms to increase inclusivity →
   → Recent reforms (e.g. greater voting shares for emerging economies like China, India) →
   → Can increase legitimacy and cooperation →
   → More globally representative decisions may lead to more equitable outcomes
4. Global Spillover Effects Hard to Control
   Depends on multilateral cooperation with other institutions →
   → IMF and World Bank don’t operate alone — can work with WTO, BIS, G20, etc. →
   → Coordinated action can manage systemic risk more effectively (e.g. post-2008) →
   → Reduces unpredictability and strengthens global stability
5. Lack of Implementation Capacity in Recipient Nations
   Depends on institutional development support by the World Bank →
   → World Bank offers technical assistance and capacity building (e.g. education, governance) →
   → May gradually improve government competence →
   → Enables smoother implementation of reforms and more effective use of aid
6. Vulnerability to Commodity Price Shocks
   Depends on diversification support from the institutions →
   → IMF/World Bank encourage diversification away from primary goods (e.g. agriculture reforms, tech investment) →
   → More resilient economies in the long-run →
   → Less exposure to external shocks and stronger macro stability
7. Perception of Neoliberal Bias
   Depends on how the agenda has evolved over time →
   → IMF/World Bank have increasingly focused on poverty reduction, inequality, and sustainability →
   → Green finance and social infrastructure are now part of the strategy →
   → Reputation may improve and criticism decline over time
8. Corruption in Recipient Countries
   Depends on the type of assistance provided by the institution →
   → If the World Bank funds targeted schemes like Conditional Cash Transfers (CCTs) →
   → Money is directly transferred to individuals/families (e.g. via mobile banking) →
   → Reduces leakage and opportunities for intermediaries to siphon off funds