Economic Policy, Regulation and Professional Ethics
Economic Policy, Regulation and Professional Ethics tests how economists justify and design policy, how regulation addresses market failure, and how professional conduct shapes credible advice. The exam expects cost–benefit reasoning, awareness of regulatory failure, and clear ethical judgement.
Core rules and concepts
- Policy rationale: market failure includes public goods, externalities, information asymmetry, and market power. Regulation may use taxes, subsidies, standards, disclosure, licensing, or competition policy.
- Cost–benefit analysis: compare present values of incremental benefits and costs, include opportunity costs, avoid double counting, and state the discount rate. A positive net present value supports a project only if alternatives are also considered.
- Regulatory design: proportionality, predictability, and cost-effectiveness matter. Regulatory capture occurs when agencies serve regulated interests; compliance costs and unintended distortions are regulatory failure risks.
- Ethics: integrity, objectivity, confidentiality, competence, and disclosure of conflicts of interest. Ethical obligations can exceed legal minimums. Data must not be fabricated, selectively reported, or presented without appropriate uncertainty.
- Professional scepticism: challenge assumptions, document sources, and distinguish evidence from advocacy.
Worked example
A regulation costs 150 now and yields benefits of 100 in each of the next two years. At a 5% discount rate, PV benefits = 100/1.05 + 100/1.05² = 95.24 + 90.70 = 185.94. NPV = 185.94 − 150 = 35.94, so the regulation passes the test. At a 10% discount rate, PV benefits = 90.91 + 82.64 = 173.55, and NPV = 23.55; still positive. If the upfront cost were 200, NPV at 5% would be −14.06, so the conclusion would reverse. Show the discounting and the incremental comparison explicitly.
Traps that cost marks
Do not ignore opportunity cost or double-count benefits. Use a real discount rate for real cash flows and a nominal rate for nominal cash flows. A regulation that addresses a real externality can still fail a cost–benefit test. Legality is not the same as ethical conduct. Confidentiality has proper exceptions, and changing assumptions to reach a preferred conclusion is a serious integrity breach.