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Economics_A-level_Edexcel

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  1. 1-1-nature-of-economics
    6 主题
  2. 1-2-how-markets-work
    10 主题
  3. 1-3-market-failure
    4 主题
  4. 1-4-government-intervention
    2 主题
  5. 2-1-measures-of-economic-performance
    4 主题
  6. 2-2-aggregate-demand-ad
    5 主题
  7. 2-3-aggregate-supply-as
    3 主题
  8. 2-4-national-income
    4 主题
  9. 2-5-economic-growth
    4 主题
  10. 2-6-macroeconomic-objectives-policies
    4 主题
  11. 3-1-business-growth
    3 主题
  12. 3-2-business-objectives
    1 主题
  13. 3-3-revenues-costs-and-profits
    4 主题
  14. 3-4-market-structures
    7 主题
  15. 3-5-labour-market
    3 主题
  16. 3-6-government-intervention
    2 主题
  17. 4-1-international-economics
    9 主题
  18. 4-2-poverty-inequality
    2 主题
  19. 4-3-emerging-developing-economies
    3 主题
  20. 4-4-the-financial-sector
    3 主题
  21. 4-5-role-of-the-state-in-the-macroeconomy
    4 主题
  22. 5-1-the-exam-papers
    3 主题
  23. 5-2-economics-a-level-skills
    1 主题
  24. 5-3-structuring-your-responses
    9 主题
课 Progress
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Profit and Revenue Maximisation

Profit Maximisation

  • Most firms have the rational business objective of profit maximisation

    • Profits benefit shareholders as they receive dividends and also increase the underlying share price

      • An increase in the underlying share price increases the wealth of the shareholder

  • To achieve profit maximisation firms, follow the profit maximisation rule

    • When marginal cost (MC) = marginal revenue (MR) then no additional profit can be extracted by producing another unit of output

    • When MC < MR additional profit can still be extracted by producing an additional unit of output

    • When MC > MR the firm has gone beyond the profit maximisation level of output

      • It is making a marginal loss on each unit produced beyond the point of output where MC = MR

  • In reality, firms may find it difficult to produce at the profit maximisation level of output

    • They may not know where this level is because it is difficult to calculate

    • In the short term they may not adjust their prices if the marginal cost changes

      • Marginal costs can change regularly and regular price changes would be disruptive to customers

    • In the long-term firms will seek to adjust prices to the profit maximisation level of output

    • Firms may be forced to change prices by the Competition Commission

      • The profit maximisation level of output often results in high prices for consumers

      • Changing prices changes the marginal revenue

Economic graph showing profit maximisation at marginal cost (MC) and average cost (AC) curves, with supernormal profit area between price (P1) and cost (C1).
The profit maximisation level of output occurs at Q1 where MC = MR resulting in a market price of P1

Diagram analysis

  • This firm has market power as the MR and average revenue (AR) curve are downward sloping

  • At the profit maximisation level of output (MC = MR)

    • The selling price is P1

    • The average cost is C1

    • The supernormal profit = left parenthesis straight P subscript 1 space minus space straight C subscript 1 right parenthesis space cross times space straight Q subscript 1

Revenue Maximisation

  • Some firms have the business objective of revenue maximisation

    • This often occurs due to the principal agent problem

      • Sales managers often receive commission on sales as part of their wages and this incentivises them to maximise sales

      • Profit maximisation for shareholders becomes a secondary objective for the sales managers

    • Firms will also maximise revenue in order to increase output & benefit from economies of scale

    • In the short-term firms may use this strategy to eliminate the competition as the price is lower than when focusing on profit maximisation

  • To achieve revenue maximisation firms produce up to the level of output where MR = 0

    • When MR > 0, producing another unit of output will increase total revenue

Economic graph showing supernormal profit with demand, average cost, marginal cost, and marginal revenue curves. Quantity and price axes included.
The revenue maximisation level of output occurs at Q1 where MR = 0 resulting in a market price of P1

Diagram analysis

  • This firm has market power as the MR and average revenue (AR) curve are downward sloping

  • At the revenue maximisation level of output (MR = 0)

    • The selling price is P1

    • The average cost is C1

    • The supernormal profit = <img alt=”left parenthesis straight P subscript 1 space minus space straight C subscript 1 right parenthesis space cross times space straight Q subscript 1″ data-mathml='<math style=”font-family:Arial” ><semantics><mstyle mathsize=”14px”><mo>(</mo><msub><mi mathvariant=”normal”>P</mi><mn>1</mn></msub><mo> </mo><mo>-</mo><mo> </mo><msub><mi mathvariant=”normal”>C</mi><mn>1</mn></msub><mo>)</mo><mo> </mo><mo>×</mo><mo> </mo><msub><mi mathvariant=”normal”>Q</mi><mn>1</mn></msub></mstyle><annotation encoding=”application/vnd.wiris.mtweb-params+json”>{“language”:”en”,”fontFamily”:”Times New Roman”,”fontSize”:”18″}</annotation></semantics></math>’ height=”22″ role=”math” src=”data:image/svg+xml;charset=utf8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20xmlns%3Awrs%3D%22http%3A%2F%2Fwww.wiris.com%2Fxml%2Fmathml-extension%22%20height%3D%2222%22%20width%3D%22103%22%20wrs%3Abaseline%3D%2214%22%3E%3C!–MathML%3A%20%3Cmath%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F1998%2FMath%2FMathML%22%20style%3D%22font-family%3AArial%22%3E%3Cmstyle%20mathsize%3D%2214px%22%3E%3Cmo%3E(%3C%2Fmo%3E%3Cmsub%3E%3Cmi%20mathvariant%3D%22normal%22%3EP%3C%2Fmi%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmsub%3E%3Cmo%3E%26%23xA0%3B%3C%2Fmo%3E%3Cmo%3E-%3C%2Fmo%3E%3Cmo%3E%26%23xA0%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%20mathvariant%3D%22normal%22%3EC%3C%2Fmi%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmsub%3E%3Cmo%3E)%3C%2Fmo%3E%3Cmo%3E%26%23xA0%3B%3C%2Fmo%3E%3Cmo%3E%26%23xD7%3B%3C%2Fmo%3E%3Cmo%3E%26%23xA0%3B%3C%2Fmo%3E%3Cmsub%3E%3Cmi%20mathvariant%3D%22normal%22%3EQ%3C%2Fmi%3E%3Cmn%3E1%3C%2Fmn%3E%3C%2Fmsub%3E%3C%2Fmstyle%3E%3C%2Fmath%3E–%3E%3Cdefs%3E%3Cstyle%20type%3D%22text%2Fcss%22%3E%40font-face%7Bfont-family%3A’math1298aafb3379f56b0a3af85c9c2’%3Bsrc%3Aurl(data%3Afont%2Ftruetype%3Bcharset%3Dutf-8%3Bbase64%2CAAEAAAAMAIAAAwBAT1MvMi7iBBMAAADMAAAATmNtYXDEvmKUAAABHAAAADxjdnQgDVUNBwAAAVgAAAA6Z2x5ZoPi2VsAAAGUAAAA4WhlYWQQC2qxAAACeAAAADZoaGVhCGsXSAAAArAAAAAkaG10eE2rRkcAAALUAAAADGxvY2EAHTwYAAAC4AAAABBtYXhwBT0FPgAAAvAAAAAgbmFtZaBxlY4AAAMQAAABn3Bvc3QB9wD6AAAEsAAAACBwcmVwa1uragAABNAAAAAUAAADSwGQAAUAAAQABAAAAAAABAAEAAAAAAAAAQEAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAgICAAAAAg1UADev96AAAD6ACWAAAAAAACAAEAAQAAABQAAwABAAAAFAAEACgAAAAGAAQAAQACANciEv%2F%2FAAAA1yIS%2F%2F%2F%2FKt3wAAEAAAAAAAAAAAFUAywAgAEAAFYAKgJYAh4BDgEsAiwAWgGAAoAAoADUAIAAAAAAAAAAKwBVAIAAqwDVAQABKwAHAAAAAgBVAAADAAOrAAMABwAAMxEhESUhESFVAqv9qwIA%2FgADq%2FxVVQMAAAIAgABVAtUCgAADAAcARhiwARQAsQAAExCxAAnksQABExCwBDyxBgj0sAI8MAGxCAETELEAA%2FawBzyxAQX1sAY8sgUHABD0sAI8sQkD5rEEBfWwAzwTMwEjETMBI4BVAgBVVf4AVQKA%2FdUCK%2F3VAAEAgAFVAtUBqwADADAYAbAEELEAA%2FawAzyxAgf1sAE8sQUD5gCxAAATELEABuWxAAETELABPLEDBfWwAjwTIRUhgAJV%2FasBq1YAAAAAAQAAAAEAANV4zkFfDzz1AAMEAP%2F%2F%2F%2F%2FWOhNz%2F%2F%2F%2F%2F9Y6E3MAAP8gBIADqwAAAAoAAgABAAAAAAABAAAD6P9qAAAXcAAA%2F7YEgAABAAAAAAAAAAAAAAAAAAAAAwNSAFUDVgCAA1YAgAAAAAAAAAAoAAAAlwAAAOEAAQAAAAMAXgAFAAAAAAACAIAEAAAAAAAEAADeAAAAAAAAABUBAgAAAAAAAAABABIAAAAAAAAAAAACAA4AEgAAAAAAAAADADAAIAAAAAAAAAAEABIAUAAAAAAAAAAFABYAYgAAAAAAAAAGAAkAeAAAAAAAAAAIABwAgQABAAAAAAABABIAAAABAAAAAAACAA4AEgABAAAAAAADADAAIAABAAAAAAAEABIAUAABAAAAAAAFABYAYgABAAAAAAAGAAkAeAABAAAAAAAIABwAgQADAAEECQABABIAAAADAAEECQACAA4AEgADAAEECQADADAAIAADAAEECQAEABIAUAADAAEECQAFABYAYgADAAEECQAGAAkAeAADAAEECQAIABwAgQBNAGEAdABoACAARgBvAG4AdABSAGUAZwB1AGwAYQByAE0AYQB0AGgAcwAgAEYAbwByACAATQBvAHIAZQAgAE0AYQB0AGgAIABGAG8AbgB0AE0AYQB0AGgAIABGAG8AbgB0AFYAZQByAHMAaQBvAG4AIAAxAC4AME1hdGhfRm9udABNAGEAdABoAHMAIABGAG8AcgAgAE0AbwByAGUAAAMAAAAAAAAB9AD6AAAAAAAAAAAAAAAAAAAAAAAAAAC5BxEAAI2FGACyAAAAFRQTsQABPw%3D%3D)format(‘truetype’)%3Bfont-weight%3Anormal%3Bfont-style%3Anormal%3B%7D%40font-face%7Bfont-family%3A’round_brackets18549f92a457f2409’%3Bsrc%3Aurl(data%3Afont%2Ftruetype%3Bcharset%3Dutf-8%3Bbase64%2CAAEAAAAMAIAAAwBAT1MvMjwHLFQAAADMAAAATmNtYXDf7xCrAAABHAAAADxjdnQgBAkDLgAAAVgAAAASZ2x5ZmAOz2cAAAFsAAABJGhlYWQOKih8AAACkAAAADZoaGVhCvgVwgAAAsgAAAAkaG10eCA6AAIAAALsAAAADGxvY2EAAARLAAAC%2BAAAABBtYXhwBIgEWQAAAwgAAAAgbmFtZXHR30MAAAMoAAACOXBvc3QDogHPAAAFZAAAACBwcmVwupWEAAAABYQAAAAHAAAGcgGQAAUAAAgACAAAAAAACAAIAAAAAAAAAQIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAACAgICAAAAAo8AMGe%2F57AAAHPgGyAAAAAAACAAEAAQAAABQAAwABAAAAFAAEACgAAAAGAAQAAQACACgAKf%2F%2FAAAAKAAp%2F%2F%2F%2F2f%2FZAAEAAAAAAAAAAAFUAFYBAAAsAKgDgAAyAAcAAAACAAAAKgDVA1UAAwAHAAA1MxE

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