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John Locke Essay Competition · 2026 questions

John Locke Public Policy Essay Questions

Public Policy is new in 2026 and its questions are the most technical in the competition. The judges are asking whether you can do policy analysis: state an objective, a mechanism, the trade-off and the evidence.

The 2026 questions below are the official set. The 2027 questions are expected in late January 2027 and this page will carry them within 48 hours.

Updated Sep 27, 20262027 questions: expected late January 2027

The 2026 Public Policy questions, one by one

Quoted verbatim from the John Locke Institute. For each: what the examiners are testing, where strong students lose marks, the argument lines that hold up over 2,000 words, and what to read before you write.

What it is really asking

The Stern-Nordhaus dispute: whether to discount the welfare of future people, and at what rate. It rewards a student who understands the Ramsey equation and can argue about its ethical parameter.

The trap

Answering with a number and no ethics, or ethics and no number. The question says "why", and the why is a mixture of both.

Lines of argument that can carry 2,000 words

  • The Ramsey rule: r = δ + ηg. The pure time preference δ is the ethical choice; Stern sets it near zero, Nordhaus uses market rates. Explain what each implies for a policy that pays off in 2100.
  • Uncertainty and declining rates: Weitzman shows that uncertainty about future growth pushes the long-run rate down; the UK Green Book already uses a declining schedule. That is a middle position with authority.
  • Catastrophe changes the maths: fat-tailed climate risk makes expected-value analysis unstable, which is an argument for precaution rather than for any particular rate.

Read first

  • The Stern Review: The Economics of Climate Change, Nicholas Stern, 2006 (chapter 2 and the postscript)
  • A Review of the Stern Review on the Economics of Climate Change, William Nordhaus, Journal of Economic Literature, 2007
  • On Modeling and Interpreting the Economics of Catastrophic Climate Change, Martin Weitzman, Review of Economics and Statistics, 2009

What the judges reward in Public Policy

The official criteria are knowledge and understanding, competent use of evidence, quality of argumentation, originality, structure, writing style and persuasive force. In this category that means:

  • 1A stated policy objective and an honest trade-off, with the losers named.
  • 2Quantities where they exist: rates, uptake, costs.
  • 3Theory from economics and political philosophy applied, not paraphrased.
  • 4A design recommendation specific enough to be criticised.

No published winning essay yet

Public Policy was introduced in 2026, so the Institute has not yet published a winning essay in this category. The closest models are the published Economics, Politics-adjacent and Philosophy winners, which we take apart paragraph by paragraph in our guide to the published essays.

Past winning essays, analysed

How to prepare for the 2027 Public Policy questions before they are released

  1. 1

    Learn to read a cost-benefit analysis and a policy evaluation; the UK Green Book and one Journal of Economic Perspectives symposium are enough.

  2. 2

    For each question, write the trade-off in one sentence: what we buy, what we give up, who pays.

  3. 3

    Choose the question where you can find one real evaluation with numbers.

  4. 4

    Avoid advocacy language. The judges are policy academics and they read "must" and "clearly" as weakness.

John Locke Essay Competition prep for Public Policy

John Locke Basics

12 group sessions plus 6 hours of 1-on-1 mentorship, from question choice to a submission-ready draft. 38 of our 41 students were shortlisted in 2026.

Questions about the Public Policy category

More technical than any other category. The 2026 discount-rate question expects familiarity with the Ramsey rule and the Stern-Nordhaus debate; the vaccination question expects real uptake data. You do not need mathematics beyond a formula and its meaning, but you do need to have read the primary policy literature rather than commentary on it.