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Costs

Costs. IMBA Managerial Economics Jack Wu. Costs. Introduction. Cost and economies of scale Cost and economies of scope Experience Curve Relevant / Opportunity costs Transfer Pricing Irrelevant Costs/ Sunk costs. Economies of scale.

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Costs

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  1. Costs IMBA Managerial Economics Jack Wu

  2. Costs

  3. Introduction • Cost and economies of scale • Cost and economies of scope • Experience Curve • Relevant / Opportunity costs • Transfer Pricing • Irrelevant Costs/ Sunk costs

  4. Economies of scale • Fixed cost: cost of inputs that do not change with production rate • Variable cost: cost of inputs that change with the production rate • Fixed/variable costs concepts apply in • Short run • Long run

  5. Expense Statement

  6. Fixed and Variable Costs

  7. Economies of scale • Economies of scale (increasing returns to scale): average cost decreases with scale of production

  8. Scale Economies: Sources • large fixed costs • research, development, and design • information technology • falling average variable costs • distribution of gas and water • container ships

  9. Diseconomies of scale • Definition: Diseconomies of scale (decreasing returns to scale) – average cost increases with scale of production

  10. Economies of scale: Strategic implications • Either produce on large scale or outsource • Seller side – monopoly/oligopoly • Buyer side – monopsony/oligopsony

  11. Economies of scale:Google vis-à-vis library • Which link(s) in service chain are scaleable? • Compilation of information • Providing service: servers and network • Responding to enquiries

  12. Economies of scope • Economies of scope: total cost of production is lower with joint than with separate production • Diseconomies of scope: total cost of production is higher with joint than with separate production

  13. Expenses for two products

  14. Economies of Scope • source -- joint cost: cost of inputs that do not change with scope of production • examples: • cable television + telephone banking + insurance manufacturing: refrigerator + air-conditioner • strategic implication -- produce/deliver multiple products

  15. Economies of scope:Core competence • Technology – apply common technology to multiple products • LCDs – watches, PDAs • Manufacturing – apply same process to multiple products • LCDs, semiconductors • Marketing – brand extensions • spread promotional costs over multiple products/businesses

  16. HORIZONTAL BOUNDARIES • Economies of scale • Should bank merge with competitor? • Should trucking company acquire smaller rivals? • Economies of scope • Should airline run catering service? • Should bank sell insurance? • Should university open a medical school?

  17. Experience curve • Incremental cost falls with cumulative production run over time • Unit cost falls with cumulative production run • Distinguish from economies of scale within one production period

  18. Experience curve

  19. Relevance • consider only relevant costs and ignore all other costs • which costs are relevant depends on course of action • relevant costs may be hidden • irrelevant costs may be shown in accounts

  20. Opportunity Cost • definition -- net revenue from best alternative course of action • two approaches • show alternatives • report opportunity costs

  21. Example • Williams bought a warehouse and paid $300,000 for it. She used her own money $200,000 and made a bank loan of $100,000. • A developer were willing to buy warehouse for 2 million. • If Williams sells warehouse, she could invest proceeds in government bonds and get a secure income $160,000 (2 million*8%). • She could work elsewhere for salary $400,000.

  22. INCOME STATEMENT SHOWING ALTERNATIVES Income statement reporting opportunity costs

  23. Transfer pricing • Generally, for internal economic efficiency, set transfer price = marginal cost • Special cases • Perfectly competitive market: transfer price = market price • Production subject to full capacity: transfer price = highest marginal benefit from internal use • Compare marginal benefit across internal users

  24. Transfer pricing

  25. Sunk Cost • definition -- cost that has been committed and cannot be avoided • alternative courses of action • prior commitments • planning horizon • Fewer commitments  fewer sunk costs; • longer planning horizon  fewer sunk costs.

  26. Example • Jupiter Athletic is about to launch a line of new athletic shoes. Some month ago, management prepared an ad campaign with total budget of $310,000. • They forecast the ad would generate sales of 20,000 units. Each sale’s unit contribution margin (price- average variable cost) is $20. The total contribution margin is $20*20000=$400,000. Their expected profit generated from ad is $400,000-310,000=$90,000.

  27. Example: continued • Recently, a major competitor launch a new shoe. Jupiter estimates sales fall to 15,000 units. The contribution margin becomes $20*15,000=$300,000. • Should Jupiter cancel the launch?

  28. INCOME STATEMENT SHOWING ALTERNATIVES Income statement omitting sunk costs

  29. Sunk vis-à-vis Fixed Costs • Not all sunk costs are fixed • Not all fixed costs are sunk

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