Paper 1 Practice: Norvale’s Port-Retooling Programme
Original practice material
Norvale, its institutions and all figures are fictional. This is one 30-mark case study, not a complete Paper 1. Suggested time: 75 minutes.
Answers: Norvale Port-Retooling Programme — Answers.
Case Study: Investment, leakages and productive capacity
Extract 1: A fall in machinery investment
Norvale is a small, trade-dependent economy. Following weaker regional orders, manufacturers postponed machinery replacement and ran down inventories. Planned private investment fell by N720 million. Retailers subsequently reported unexpected inventory accumulation, while household income and consumption weakened. The government is considering bringing forward N240 million of port-electrification and logistics-software expenditure.
Table 1 shows estimates for each additional dollar of household income.
| Marginal response | Estimate |
|---|---|
| Saving | 0.18 |
| Tax payments | 0.22 |
| Spending on imports | 0.20 |
Officials assume initially that prices are fixed, firms have spare capacity and the marginal responses remain constant.
Before the investment decline, the finance ministry estimated that actual output was about 2% below potential output. Unemployment has since increased, but vacancies remain difficult to fill in electrical engineering. The central bank expects the general price level to be broadly stable outside imported energy and machinery. These economy-wide averages may conceal sectoral bottlenecks.
Extract 2: Not every dollar has the same effect
The port authority will buy domestically produced electrical equipment, employ local engineers and import specialised control units. Some analysts therefore argue that the headline N240 million overstates the initial injection into demand for Norvale’s output. They also warn that indebted households may save more of any additional income than Table 1 suggests.
Other economists note that construction firms have idle machinery and recently laid-off workers. However, the electrical-engineering segment is already operating close to capacity. Faster project approval could raise wages and imported-input prices before all planned work is completed.
Only N170 million of the first-year contracts is expected to be paid to domestic firms and workers; the remaining N70 million pays for imported control units. Some domestic contractors may themselves import components. The announced N240 million is therefore government expenditure, but not all of it is an autonomous injection into demand for Norvale’s current output.
Extract 3: A supply-side claim
The programme replaces diesel equipment, reduces ship turnaround time and links port data systems to inland warehouses. Exporters expect lower delivery costs once the project is operational. Training is included, but workers need time to acquire the relevant skills. The finance ministry distinguishes the short-run expenditure effect from a possible later increase in productive capacity.
The first operational benefits would begin after eighteen months. Port users estimate that average ship turnaround could fall by 12%, although this forecast assumes compatible warehouse software and adequate worker training. If lower logistics costs attract private investment, productive capacity may rise further. If software integration fails, much of the projected supply benefit would not occur.
Extract 4: Competing responses
One group recommends the port programme alone. A second prefers temporary tax relief for lower-income households, who are expected to spend a relatively high share of additional disposable income. A third argues that neither response should be large because overseas demand may recover without intervention. Government debt interest is rising, and projects brought forward now may displace maintenance spending later.
Temporary tax relief can be implemented within one month, whereas procurement for the port requires at least four months. Lower-income households have a high estimated marginal propensity to consume, but a sizeable share of their spending falls on imported food and fuel. “No action” preserves fiscal space, yet a prolonged fall in demand could cause business closures, skill loss and weaker private investment. The policy comparison therefore involves timing, domestic content, fiscal opportunity cost and possible hysteresis, not only the headline multiplier.
Questions
(a) With reference to Table 1:
(i) Calculate the marginal propensity to withdraw. [2]
(ii) Calculate the maximum increase in equilibrium national income from an initial domestic injection of N240 million under the stated assumptions. [2]
(b) Explain the circular-flow adjustment following the fall in planned private investment in Extract 1. [4]
(c) Explain why the programme may shift both aggregate demand and aggregate supply, but at different times. [4]
(d) Assess the usefulness of the multiplier estimate calculated in (a)(ii) for predicting the programme’s effect on real national output. [8]
(e) Discuss whether Norvale should bring forward the port programme rather than use temporary household tax relief or take no action. [10]
[Total: 30]
Suggested use
Write under timed conditions, then compare the precision of your causal chains and judgement with the answer guidance.