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INTRODUCTION: Market failure occurs when the free market mechanism allocates resources inefficiently. Disposable e-cigarettes (vapes) generate negative externalities in both consumption (such as health risks to young people and pressure on the healthcare system) and disposal (such as non-biodegradable plastics and lithium-ion batteries causing environmental degradation). This leads to overconsumption, where the marginal social benefit (MSB) is less than the marginal private benefit (MPB), creating a deadweight welfare loss. ANALYSIS OF INDIRECT TAXES (KAA): An indirect tax, such as an excise duty on vapes, increases the cost of production for firms. This shifts the supply curve upwards from S to S + tax (representing an increase from MPC to MPC + tax). This increases the market price from P1 to P2 and reduces the equilibrium quantity from Q1 to the socially optimal quantity Qopt, where MSB = MSC. This internalises the externality and eliminates the deadweight welfare loss. Furthermore, the tax generates government revenue, which can be hypothecated to fund NHS treatments or environmental cleanup initiatives. EVALUATION OF INDIRECT TAXES (EV): The effectiveness of an indirect tax depends heavily on the Price Elasticity of Demand (PED). Because nicotine is highly addictive, demand for vapes is likely to be price inelastic (PED < 1). Consequently, a tax may lead to a large increase in price but only a small contraction in quantity consumed, failing to solve the market failure while heavily impacting low-income users (regressive tax impact). High tax rates also create incentives for tax evasion and the growth of an illicit black market for unregulated and potentially more dangerous vapes. ANALYSIS OF REGULATION (KAA): Alternatively, the government can use regulation, such as a complete ban on disposable vapes, strict age-verification laws, or bans on sweet and fruity packaging/flavors. A ban on disposable vapes completely eliminates the supply of this specific market segment, forcing consumers to switch to reusable options or quit. This provides a high degree of certainty of outcome that price mechanisms (taxes) cannot guarantee, directly targeting the source of environmental waste and preventing youth access. EVALUATION OF REGULATION (EV): However, regulation carries substantial enforcement and monitoring costs, which can lead to government failure. An outright ban risks driving the entire market underground, where unregulated vapes with toxic heavy metals are sold illegally, harming consumer safety. There is also a risk of unintended consequences: if vapes are banned or highly restricted, current users who are addicted to nicotine may substitute back to smoking traditional combustible cigarettes, which carry far higher negative health externalities. CONCLUSION: In conclusion, while indirect taxes are effective at raising revenue and reducing consumption among price-sensitive casual users, they are less effective at curbing addiction due to inelastic demand. Regulation provides a direct and certain method to protect vulnerable groups and the environment, but is costly to enforce. A combined policy is most effective, where moderate taxes fund public education and NHS services, while targeted regulations restrict youth marketing and unsafe imports without driving consumers back to traditional cigarettes.
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INDICATIVE CONTENT: Knowledge, Application, and Analysis (12 marks) - Clear definitions of market failure, negative externalities of consumption, indirect taxes, and regulation. - Diagram showing negative externalities in consumption: showing MSB < MPB, free market equilibrium (Q1, P1), socially optimum equilibrium (Qopt, Popt), and the deadweight welfare loss. - Explanation of how an indirect tax shifts the MPC curve upwards, internalising the external costs, raising price, reducing quantity, and raising government revenue. - Explanation of regulations (e.g. bans on disposable vapes, flavor bans, packaging restrictions) and how they restrict supply or shift demand leftwards to target the market failure directly. Evaluation (8 marks) - Discussion of the significance of Price Elasticity of Demand (PED) for addictive products (inelastic demand means taxes increase price but do not significantly reduce consumption, leading to a regressive tax burden). - Discussion of government failure: cost of enforcement for both taxes and regulations, and the risk of creating a black market for illicit vapes. - Discussion of unintended consequences, such as vape users substituting back to more harmful combustible tobacco. - Balanced conclusion on which policy (or combination of both) is most effective and why. LEVELS-BASED MARKING GRID: For KAA (12 marks): Level 4 (9-12 marks) shows precise economic concepts, fully developed analytical chains, and a highly accurate diagram. Level 3 (7-8 marks) shows good economic understanding with some gaps in analysis or application. Level 2 (4-6 marks) shows basic understanding but lacks depth or has diagram errors. Level 1 (1-3 marks) is mostly descriptive. For Evaluation (8 marks): Level 3 (6-8 marks) offers robust, balanced evaluation of both policies with a clear, justified concluding judgment. Level 2 (3-5 marks) offers some evaluative points but lacks depth or a clear conclusion. Level 1 (1-2 marks) offers simple, unsubstantiated evaluative assertions.