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ECS1601 ASSESSMENT 4 2025 bmz.pdf From the perspective of the AD-AS model, the imposition of high US tariffs (30% on South Africa, 50% on Lesotho) is a significant negative shock, primarily to Aggregate Demand (AD) for these economies. Impact on Net Expo

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ECS1601 ASSESSMENT 4 2025 From the perspective of the AD-AS model, the imposition of high US tariffs (30% on South Africa, 50% on Lesotho) is a significant negative shock, primarily to Aggregate Demand (AD) for these economies. Impact on Net Exports (NX): A tariff makes South African and Basotho goods more expensive for American consumers. This leads to a decrease in the quantity of exports demanded by the USA. Since Net Exports (Exports - Imports) are a direct component of Aggregate Demand (AD = C + I + G + NX), a fall in NX causes the entire AD curve to shift to the left. Shift in the AD Curve: The leftward shift of the AD curve from AD1 to AD2 demonstrates this decrease in total planned spending on domestic goods and services at every price level. Effect on Real GDP and Price Level: As the diagram illustrates, a decrease in aggregate demand (AD) shifts the economy to a new short-run equilibrium, characterised by a lower level of real GDP (from Y1 to Y2) and a reduced price level (from P1 to P2). The decline in real GDP reflects a contraction in economic output, which in turn reduces national income, raises unemployment, and slows overall economic growth. For Lesotho, a country whose economy is heavily reliant on trade particularly textile exports to the United States under the African Growth and Opportunity Act (AGOA) the imposition of a 50% tariff would likely be devastating. Such a measure would sharply reduce export demand, undermining production in the textile sector, triggering widespread job losses, and weakening foreign exchange earnings. The resulting contraction would not only hurt GDP growth but also exacerbate poverty and inequality in an economy already vulnerable to external shocks.

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THE BMZ ACADEMY



THE BMZ ACADEMY




053 8213




BMZ ACADEMY 061 262 1185/068 053 8213Page 1 of 11

, THE BMZ ACADEMY

Question 1

To support economic resilience in Mitchells Plain, interventions must inject money into
the circular flow and stimulate local production. Two highly effective interventions
would be:

Government Investment in Local Infrastructure (Injection - Investment 'I')

A government-funded programme that focuses on upgrading basic infrastructure such
as water supply, electricity networks, and public spaces combined with targeted
investment in human capital through skills training, can significantly stimulate
economic activity. In the short term, such an initiative directly injects money into the
economy by creating local employment opportunities and generating household
income through factor payments (wages, rent, and returns to capital).

In the longer term, improved infrastructure enhances efficiency and accessibility, while
a skilled workforce increases the adaptability and productivity of labour. These
improvements collectively strengthen the competitiveness of local businesses,
enabling them to operate more efficiently, reduce costs, and expand output. As a
result, the economy becomes more resilient to external shocks and better positioned
for sustained economic growth.

Support for Local Enterprise Development (Stimulating Production)

Establishing grant and low-interest loan schemes for small, medium, and micro-
enterprises (SMMEs), alongside a “buy local” campaign, can serve as a powerful
stimulus for local economic development. By improving access to finance, SMMEs are
better positioned to expand operations, increase output, and hire additional workers.
This generates higher business revenues and raises factor payments to households
in the form of wages, rent, and returns on capital. At the same time, a strong emphasis
on local procurement ensures that household and business spending remains within
the community rather than leaking out through imports from other regions or countries.
This circulation of income within the local economy strengthens the internal market,
supports sustainable demand, and fosters greater business confidence. Over time,
such interventions not only promote employment and income generation but also


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