Economic Concepts of Marginal Revenue and Pricing

Chapter 1: Introduction

  • Marginal Revenue: The additional revenue gained from selling one more unit of a good. In the example:
    • Price per unit = 9
    • Units sold = 6
    • Revenue calculation: 9 imes 6 = 54
    • Marginal revenue from selling the sixth unit = 4
  • Discusses the difference in pricing strategies between monopolies and perfectly competitive firms.

Chapter 2: Lower The Price

  • Price vs. Marginal Value:
    • Important to note: Price is not equal to marginal value in some market structures.
    • To increase sales from five to six units, the firm must lower the price on all units due to a downward sloping demand curve, leading to different marginal revenues.
  • Questions to ask:
    • What happens to pricing when demand changes?
    • Why do buyers influence pricing?

Chapter 3: Drop The Price

  • Impact of Price Drop:

    • If the firm sells going from five to six units:
    • Original price for five units: 10 per unit.
    • New price for six units: 9, which means the first five units' price must also drop to 9 to sell the sixth unit.
    • Loss per unit due to the price drop = 10 - 9 = 1.
    • Thus, total loss from the first five units when selling six units = 5.
    • Final Marginal Revenue = 9 - 5 = 4.
  • Revenue Components:

    • The intersection of price and quantity leads to two effects:
    • Price effect: The change in revenue due to the change in price for all units sold.
    • Quantity effect: The change in revenue due to selling one more unit.
  • Conclusions About Revenue:

    • Increase in quantity sold can lead to increased revenue.
    • Decreasing prices generally leads to decreased revenue.

Chapter 4: Conclusion

  • Inverse Relationship:
    • Reducing the quantity sold raises the price, affecting overall revenue in the opposite direction.
  • Patterns to Recognize:
    • Recognizing how quantity and price changes affect marginal revenue is crucial.
    • Suggestion to practice with tables to understand the formulas and calculations involved in marginal revenue analysis.
  • Recommendation:
    • Familiarize oneself with key formulas and practice problems to solidify understanding.