Learning objectives
By the end you can:
- State the economic case for a regulation by naming which of the five failure modes it answers (externality, public good, informational friction, weak competition, a distributional objective), and say what a market would do in its absence.
- Map a regulator onto its type and its instrument: statutory law, administrative regulation or judicial precedent; a government department, an independent commission or a self-regulating organisation, with the accountability difference each implies.
- Diagnose regulatory capture from its three preconditions rather than from suspicion, and state the mechanism through which a concentrated interest beats a diffuse one even when the diffuse side is larger.
- Run a merger review numerically: compute concentration before and after, verify the change by an independent route, run a SSNIP test from a margin and an elasticity, compute a diversion-based unilateral-effects screen, and reach a clearance, remedy or block verdict.
- Distinguish a structural from a behavioural remedy by computing what each does to the concentration measure, to the market-definition test and to the expected harm, and state which one needs a monitor and why.
- Price a natural monopoly two ways: build a revenue requirement under rate-of-return regulation, show why it rewards capital spending over operating savings, then value the same cost saving under a price cap and quantify the difference.
- Convert a regulation into a model line: run a cost shock at three pass-through assumptions, weight the scenarios, and express the residual uncertainty as both a scenario value and a discount-rate equivalent, saying which of the two is defensible.
- Classify a geopolitical risk as event, exogenous or thematic; assign velocity, likelihood and impact; and build a firm-level exposure map from revenue, cost, licence and asset lines rather than from headlines.
- Compute the labour-market panel end to end: labour force, participation rate, unemployment rate, employment-population ratio, a broad underemployment measure and the effect of discouraged workers re-entering, then apply the frictional, structural and cyclical taxonomy and Okun's relationship in both directions.
- Solve the two oligopoly completions: find a kinked demand curve's marginal-revenue discontinuity and the exact range of marginal cost over which price does not move; and solve a Stackelberg leader-follower equilibrium against a stated demand system, comparing price, quantity, profit, consumer surplus and concentration with the Cournot and Bertrand outcomes.
Prerequisites & connections
Builds on. M0.02 named the referees and where each one's writ actually runs; the machinery of why a referee exists picks up from there. M4.03 supplies industry structure and the informal buyer-power question that becomes the SSNIP test here. EC1.01 is the direct parent: surplus, elasticity, concentration measures, critical loss, Cournot, Bertrand and the grim-trigger collusion condition are all its property and are used here without re-derivation. ES1.02 owns the securities-market regulators in operating detail, so the financial-regulation section below points at it rather than rebuilding it. M7.04 supplies the fiscal instruments a state uses on itself, and M7.05 the cycle whose position decides how much of an unemployment rate is cyclical. Ordinary algebra and a derivative read as a slope are the only mathematics required.
The deliberate non-overlaps run as follows. EC1.01 owns market structures, elasticity, consumer and producer surplus, deadweight loss, the concentration measures themselves, and the Cournot, Bertrand and game-theory core; the kinked-demand and Stackelberg completions live here by design and are the only oligopoly material added. ES1.02 owns the SEC, SEBI and FCA regimes, the Marketing Rule, the Investment Advisers and Research Analyst regulations, and GIPS; nothing here re-states a securities rulebook. M7.05 owns business-cycle dating, the indicator toolkit and the credit cycle; the labour work below supplies the measurement definitions that cycle analysis assumes and never defines. M7.07 owns India's labour narrative, informality and the female-participation debate as a country diagnosis; the arithmetic that makes those claims checkable is what appears here. M4.03 owns Porter and industry definition. M3.03 owns the cost of capital that the last step of every risk-pricing exercise below feeds into.