Introduction
[Point] Market-oriented supply-side policies refer, broadly, to government policies designed to increase the level of Aggregate Supply (AS) by reducing intervention and increasing competition within the economy. Demand-side policies include both Fiscal and Monetary Policy. Fiscal Policy (FP) refers to the government deliberately manipulating the level of taxation and government expenditure to influence Aggregate Demand (AD). Monetary Policy (MP) refers to the central bank manipulating money supply and interest rates to influence the level of AD.
[Explanation] Economic growth (EG) refers to an increase in the Real Gross Domestic Product (RGDP) produced by an economy over time. Economic growth can refer to actual growth or potential growth. Potential growth can happen through the expansion of the amount of output that could be produced if all resources are fully employed. Hence, the productive capacity of the economy could be expanded due to an increase in the quantity or quality of factors of production (FOP). On the other hand, actual growth refers to the annual percentage increase in the RGDP of an economy and can be achieved through an increase in AD or Short-Run AS (SRAS).
Brief Explanation of Policies
[Point] Market-oriented supply-side policies work by reducing costs of production and increasing the quantity and quality of factors of productions (FOPs). This leads to increases in SRAS and long-run AS (LRAS) which drives economic growth.
[Insert Diagram: Increase in Keynesian AS from AS1 to AS2 showing actual growth from Y1 to Y2 and potential growth from Yf1 to Yf2]
[Explanation] On the other hand, expansionary FP involves reducing direct taxes (income and corporate tax) and increasing government expenditure. Reduced income tax allows households to have more disposable income, increasing consumption (C). Reduced corporate tax increases the after-tax profits of firms, making more investment projects profitable, increasing investment (I). The increases in C and I work alongside increased government expenditure (G), leading to increases in AD which allow for economic growth.
[Explanation] Expansionary Monetary Policy similarly aims to increase AD. This is accomplished through central banks increasing the supply of money in the economy, which consequently decreases interest rates. Decreased interest rates reduce the cost of borrowing by consumers to finance big-ticket purchases, increasing C. Decreased interest rates also serve to increase the expected rate of return to investment projects, incentivising firms to invest, increasing I.
[Link] Referring to the diagram below the increases in C and I lead to an increase in AD from AD1 to AD2. As a result, real GDP increases from Y1 to Yfe, signifying actual growth.
[Insert Diagram: Increase in AD from AD1 to AD2 showing actual growth from Y1 to Yfe]
Thesis: Market-Oriented Supply-Side Policies are more effective
[Point] Market-oriented supply-side policies are effective in combating supply-side causes of weak EG. Rising costs of factor inputs, like imported materials or labour may be the result of excessive government Intervention (in the form of tariffs or minimum wages). Therefore, it would be wise for the government to tackle these root causes head on through such policies, which stand to be more effective.
[Explanation] Moreover, by removing minimum wage, reducing power of Trade Unions, privatisation and deregulation, an increase in I would be encouraged, leading to increased AD and hence boosting EG. This is unlike demand-side policies, which mainly target AD, and would thus be less suitable in this case. Without dealing with the problems raised above, policies to reduce corporate taxes and lower interest rates may also be ineffective to spur I.
[Exemplification] Additionally, market-oriented supply-side policies promote increased competition and Efficiency, avoiding problems of government failure. Policies such as privatisation and deregulation spur productive efficiency, which in the long term is beneficial for the economy and helps to drive growth. For example, during the 1970s, in the United States, there were heavy regulations placed upon banks involving interest rates and the lending/borrowing of funds. Today, with the deregulation of the banking industry, ceilings on interest rates and deposits have been removed and the industry is more competitive, leading to an increase in availability of credit and cheaper credit which increases the ability and willingness of firms to invest.
[Link] Also, market-oriented supply-side policies increases the productive capacity of the economy through investments which increases the quantity or quantity of capital goods, allowing for a more efficient utilisation of existing resources. This is especially important when an economy is ‘overheating’ or facing too high levels of AD with supply-side constraints. In such cases, market-oriented supply-side policies are crucial in allowing for sustained economic growth to take place in the future. Referring to the diagram below, an increase in AD from AD1 to AD2 while AS remained constant would have led to overheating of the economy. However, with an increase in the AS from AS to AS’, RGDP can continue to increase while inflationary pressures are relieved.
[Insert Diagram: Increase in AD causing overheating, followed by AS shifting to AS’ to relieve inflationary pressures]
💡 Chief Tutor’s Tip: By explicitly addressing how demand-side policies “mainly target AD, and would thus be less suitable in this case,” you are directly comparing the limitations of one policy against the strengths of another. This is exactly what IB examiners look for to award top evaluation marks.
[Evaluation – Challenging Assumptions] However, the assumption that deregulation and privatisation always lead to optimal outcomes is flawed. For instance, while the deregulation of the US banking sector increased short-term efficiency, this exact lack of government Intervention contributed massively to the 2008 Global Financial Crisis—a catastrophic market failure, that plunged the UE economy into a recession. Similarly, privatisation only works if the firm operates in a competitive market; if a state-owned enterprise merely becomes a private monopoly, productive inefficiency may increase, hurting economic growth.
Anti-Thesis: Demand-Side Policies are more effective
[Point] For one, certain market-oriented supply-side policies tend to be politically unpopular, and thus many governments are hesitant to implement them. Labour market reforms, in particular, face a large amount of opposition from the working class. As a result, such policies might not be implemented to a full extent, causing them to be ineffective.
[Exemplification] For example, the French government’s attempt to deregulate youth employment in 2006 was completely repealed weeks after passing due to nationwide strikes. Even when forced through, as seen with President Macron’s 2023 pension reforms, the resulting social unrest and strikes paralyze productivity, ironically causing short-term contractions in economic growth.
[Explanation] On the other hand, expansionary demand-side policies generally do not evoke such opposition from the populace; a decrease in taxes (under fiscal policy) would be a welcome measure by many. Therefore demand-side policies can be implemented more aggressively and thus more effective at promoting growth. Due to resistance from Labour Unions, some market-oriented supply-side policies can take quite a long time to implement. This is unlike Monetary Policy, which can be unilaterally implemented by the Central Bank, and thus can be quickly put into place.
[Exemplification] “For instance, during the onset of the COVID-19 pandemic in March 2020, the US Federal Reserve unilaterally slashed interest rates to near zero within days. This rapid monetary response immediately decreased the cost of borrowing to stimulate consumption and investment, aggressively defending actual economic growth during a crisis in a way that slow-moving supply-side reforms never could.”
[Point] Market-oriented supply-side policies may also have uncertain outcomes. Unlike fiscal policy, where there is a direct and certain effect on AD through increased government expenditure, supply-side policies may not be as effective in ensuring an increase in spending and output. Also, there is an additional benefit from demand-side policies through the multiplier effect where one person’s spending is another’s income, leading to multiple rounds of spending and income generation. Through the successive rounds of increase in AD leading to real GDP increasing, the increase in RGDP is greater than the initial increase in G.
[Exemplification] “A prime example of this is the 2009 American Recovery and Reinvestment Act (ARRA), where the US government injected $831 billion through infrastructure spending and tax cuts. This direct fiscal stimulus utilized the Keynesian multiplier to successfully trigger actual economic growth and lift the economy out of the severe deflationary gap of the Global Financial Crisis.”
[Insert Diagram: Multiplier Effect showing final increase in RGDP greater than initial injection]
Concluding Section
[Conclusion] Market-oriented supply-side policies are not always more effective than demand-side policies. For one, demand-side policies might be more effective in promoting economic growth during a recession when quick solutions are needed – monetary policy can be implemented immediately during the onset of a recession with fiscal policy as a direct and aggressive measure of increasing AD through an increase in G. Market-oriented supply-side policies are more effective as a long-term solution to increase productivity and competition while promoting a conducive environment for I and thus EG, rather than a short-term solution to reverse a recession. Ultimately, sustainable economic growth requires the careful coordination of both as they are fundamentally complementary. Both demand-side management and supply-side policies are required to ensure AD increases in tandem with the LRAS to promote short-term and long-term economic growth.
💡 Chief Tutor’s Tip: This Concluding section secures the final 3 marks for a perfect 15/15. By synthesising and providing relevant insights, you demonstrate the highest order of critical economic thinking expected of a Grade 7 student.
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