IB Economics SL Extended Essay Example

The title is a little broader and more theory-led than the actual investigation, which also examines affordability, redistribution, and welfare. Consider narrowing the title so it matches the evidence more precisely; that would strengthen focus and make the conceptual framing clearer.

The research question is specific, place-based, and policy-focused. By naming both the policy and the Mukuru Kwa Njenga population, the student creates a clear basis for systematic investigation rather than a generic discussion of housing policy.

This sentence shows good direction, but the focus still drifts because the essay then expands into several separate frames: market failure, positive externalities of consumption, government interference, and the Keynesian multiplier. The student should make the line of inquiry more disciplined by explaining exactly which concept is central and why.

The mixed-method design is appropriate for this question because it combines resident experience with contextual evidence. That is a sound methodological choice for an investigation into living standards, which cannot be captured well by a single source type.

The student identifies a major limitation well, but the sampling approach remains too weak for strong inference because convenience sampling can overrepresent people who were available and willing to respond. The student should explain how the sample was selected and why it is the best available option for this context, or else limit claims more tightly.

How consistently was triangulation actually applied across the essay? The student could strengthen methodology by showing, for each major claim, which survey result and which secondary source were used together rather than simply stating that triangulation occurred.

This is a sensible set of indicators, but the method would be stronger if the student explained how each indicator was operationalised and weighted. For example, were responses averaged, coded into categories, or compared before and after relocation?

The hypothesis is promising but incomplete in this sentence because it stops mid-claim and does not yet specify how the gains will be measured. The student should finish the statement clearly and align it with the actual indicators used in the investigation.

The student gives useful context for the policy mechanism and links it to the Kenyan housing problem. That factual grounding helps the later analysis because the reader can see how the levy is intended to finance housing supply.

The terminology here is only partly accurate. The student should distinguish more carefully between merit good arguments, positive externalities of consumption, and positive externalities of production, because these are not interchangeable and they affect the diagrammatic analysis differently.

This is conceptually shaky because underprovision of housing is not automatically explained by positive externalities of production. The student should clarify whether the externality is attached to the consumption of better housing, the production of housing, or both, and then keep that classification consistent.

The student shows clear understanding of how external benefits create underproduction and why the social optimum differs from the market outcome. The explanation connects the diagram to the policy objective, which is exactly the kind of theory-to-application link Economics essays need.

This is a good intuition, but the explanation should be more precise about who receives the subsidy and how that changes equilibrium. The student should explicitly identify the new price and quantity effects, otherwise the intervention is described more generally than analytically.

This idea could be developed more carefully by linking the multiplier to specific local spending channels, such as wages, materials, or service demand. That would make the concept more persuasive and less like a broad assertion about stimulus.

The claim is plausible, but it would be stronger if the student separated perception from measurable change. As written, the sentence blends subjective satisfaction with objective welfare improvements, which makes the economic evidence less precise.

The rent comparison is a strong use of source material because it gives a concrete indicator of affordability rather than relying only on opinion. This helps the investigation move from broad claims about welfare to a measurable economic outcome.

The economic point is directionally correct, but the wording is too vague to show full understanding. The student should specify whether the subsidy lowers consumer price, raises producer revenue, or both, and then connect that clearly to the diagram and welfare outcome.

A more precise discussion would distinguish vertical equity from the financing burden on formal workers and the targeting of beneficiaries. That distinction would improve conceptual accuracy and help the student evaluate whether the policy is progressive in practice, not only in theory.

This sentence is clear, but the phrasing suggests that these are 'negative effects' when they are actually benefits or positive outcomes. The student should use accurate welfare terminology so the conclusion does not undermine the economics being argued.

This conclusion goes beyond what the evidence can establish. A perception survey can show improved satisfaction, but it cannot by itself measure marginal social benefit or prove the size of the original market failure, so the student should qualify the inference more carefully.

This is effective analysis because the student does not just repeat the survey result; the percentage is interpreted as evidence of improved welfare. The direct link between data and economic meaning is a strong feature of the argument.

The student uses the primary data well here to support a focused claim about safety. The high contrast in responses makes the argument persuasive and shows clear engagement with the survey findings.

This is a reasonable inference, but it needs more caution because 'perceived reduction' is not the same as verified disease incidence. The student should make clear that the survey measures reported experience, not medical records, to avoid overstating the conclusion.

What evidence in the essay actually measures social marginal benefit rather than only reported improvement? The student could strengthen the reasoning by showing exactly how the survey data and secondary sources support the claim that intervention raises welfare beyond private benefit.

The interpretation is useful, but it remains incomplete because it does not separate direct construction employment from indirect or temporary work. The student should explain whether this figure supports a multiplier effect, a one-off labour opportunity, or both.

This comparison is helpful, but it is based on a small and unexplained subset of households, so the conclusion about affordability is not yet robust. The student should say how many households this average represents and why those cases are appropriate for comparison.

The table would be stronger if it also included a brief note about sample size and whether utilities or service charges are included in the post-relocation cost. That would make the affordability analysis more reliable and easier to interpret.

The argument is interrupted here, which makes the evaluation of targeting incomplete at an important point. The student should complete the reasoning and explain how the eligibility criteria affect both equity and exclusion of the poorest households.

The conclusion is too fast here: improved perceptions do not automatically demonstrate movement to the social optimum. The student should explain what welfare benchmark is being used and why these indicators are enough to support that claim.

This is a strong evaluative move because the student recognises attribution problems rather than attributing every change to the levy. That caution improves credibility and shows genuine critical thinking.

The hypothesis verification is balanced and nuanced. The student does not present the policy as an unqualified success, which makes the final judgment more credible and appropriately evaluative.

This is an important limitation and could be turned into a stronger evaluation point by briefly stating how a control group or before-and-after panel design would have improved causal inference. That would show methodological awareness as well as critical judgment.

What specific welfare measures would make this future research more convincing: income change, housing-cost burden, access to services, or subjective well-being? Naming the indicators would make the proposed extension more methodologically useful.

The structure is clear and conventional, with a dedicated methodology section placed before the theory and analysis. That sequencing helps the reader understand how the investigation was built before seeing the evidence.

The appendix is useful in principle, but the title is awkwardly phrased and less precise than the rest of the report. A cleaner, more consistent appendix label would improve professionalism and make the supporting material easier to navigate.

This section is interesting, but it is not essential to answering the research question. The student could either integrate the most relevant future-research point into the evaluation or shorten this section to keep the report tightly focused.

The inclusion of a full references section is a strength because it signals that the investigation is research-based and traceable. It also supports academic integrity by showing where the evidence comes from.

The summary table is an effective presentation choice because it condenses several outcomes into one place. That helps the reader compare safety and health results quickly rather than searching across separate graphs.

The table is useful, but the presentation would be stronger if the student briefly stated what the averages are based on and whether the percentages were rounded. Without that note, the reader cannot fully judge how the summary was constructed.

This is a strong evaluative heading. The student could make the section even more effective by using a more explicit contrast in the paragraph, such as short-term consumer gains versus long-term fiscal or administrative costs.

The references section contains clear date and formatting problems like this entry, which weakens the professionalism of the report. The student should proofread the bibliography carefully so that every citation uses one consistent referencing style.

This reference appears inconsistently formatted, which makes the bibliography harder to trust and use. The student should standardize author names, dates, titles, and retrieval information throughout the list.