Managerial economics

The document is divided into a cover page followed by 6 thematic units, and closes with a Quick Revision section. It uses a professional formatting style with colour-coded headings (navy blue), definition boxes with highlighted terms, key note callout boxes, and multiple comparison tables. Unit-by-Unit Content Unit 1 — Introduction to Managerial Economics opens with definitions from K.K. Dwivedi, Spencer & Siegelman, and McNair & Meriam. It covers the nature (normative, pragmatic, micro-based, multi-disciplinary) and scope (demand, production, pricing, profit, capital, macro analysis) of the subject. It explains the objectives of firms — from classical profit maximization to Baumol's, Marris's, Williamson's, and Simon's models. It also maps managerial economics' relationship to disciplines like statistics, mathematics, accounting, finance, and operations research, and explains core principles such as opportunity cost, marginal analysis, time value of money, discounting, equi-marginal, and incremental principles. Unit 2 — Demand Analysis & Elasticity explains the concept and conditions of demand, then presents the full demand function (Dx = f(Px, Py, I, T, A, E, N, D)) in a tabular format. It covers all four types of elasticity — price (PED), income (YED), cross (CED), and advertising (AED) — each with formulas, classifications, and real-world examples. The unit closes with demand forecasting, classifying methods into qualitative (consumer surveys, Delphi, sales force composite, test marketing) and quantitative (trend projection, regression, econometric, barometric). Unit 3 — Production & Cost Analysis begins with the production function Q = f(L, K, T), then explains the Law of Variable Proportions across its three stages (increasing, diminishing, and negative returns) in a three-column table. Long-run returns to scale (IRS, CRS, DRS) are described, followed by isoquant and isocost analysis, including MRTS and producer equilibrium. A comprehensive cost concepts table covers FC, VC, TC, AFC, AVC, ATC, MC, opportunity cost, sunk cost, incremental, explicit, and implicit costs. Short-run and long-run cost curve behaviour is explained, including the LRAC as an envelope curve. The unit ends with Break-Even Analysis formulas (BEP in units and value, contribution, P/V ratio, margin of safety). Unit 4 — Market Structures & Pricing uses comparative tables to distinguish Perfect Competition, Monopoly, Monopolistic Competition, and Oligopoly across features like number of sellers, product type, price control, and entry barriers. Equilibrium conditions for each structure are stated. The unit covers price discrimination (3 degrees under monopoly), Chamberlin and Joan Robinson's monopolistic competition model, and Sweezy's Kinked Demand Curve for oligopoly price rigidity. Collusive models (cartel, price leadership, tacit collusion) and game theory (Nash Equilibrium, Prisoner's Dilemma) are also included. Ten pricing strategies are tabulated — cost-plus, marginal cost, going rate, skimming, penetration, predatory, transfer, peak load, discriminatory, and psychological pricing. Unit 5 — Profit & Capital Management defines accounting profit, economic profit, normal profit, and supernormal profit. It covers five theories of profit: Knight's uncertainty theory, Schumpeter's innovation theory, monopoly theory, Clark's dynamic theory, and marginal productivity theory. Profit planning tools (break-even analysis, standard costing, variance analysis) are listed. Capital budgeting is covered through traditional methods (Payback Period, ARR) and DCF methods (NPV, IRR, Profitability Index). The unit concludes with the WACC formula for cost of capital. Unit 6 — Business Cycles & Economic Forecasting describes the five phases of the business cycle (expansion, peak, contraction, trough, recovery) and classifies economic indicators into leading, coincident, and lagging. Six theories of business cycles are summarised (Hawtrey, Hayek, Pigou, Underconsumption, Keynes, Real Business Cycle). Forecasting techniques include opinion surveys, econometric models, input-output analysis, barometric forecasting, and time series analysis. National income concepts (GDP, GNP, NNP, NI, PI, DI, Per Capita Income) are tabulated with formulas. Five types of inflation (demand-pull, cost-push, stagflation, reflation, deflation) are explained with business implications.