Economics - 4EC1 PearsonEdexcel

Business Costs, Revenues And Profit

Overview

Behind every price tag sits a calculation: how much did this cost to make, how much money will selling it bring in, and is there anything left over once the bills are paid? Every business, from a market stall to a multinational, answers these same three questions using the same handful of formulae.

In this lesson you will calculate total and average cost, total revenue and profit, and see why these figures behave differently in the short run, when at least one factor of production is fixed, compared with the long run, when a business can change its entire scale of operation. You will then explore economies and diseconomies of scale, and see how the long run average cost curve shows a business exactly where it is most efficient to operate.

Objectives

  1. Definition and use of formulae to calculate total revenue, total costs, total fixed costs, total variable costs, average (total) costs, profit
  2. Economies of scale: definition, types of internal economies of scale (purchasing, marketing, technical, financial, managerial, risk bearing), definition of external economies of scale, types of external economies of scale (skilled labour, infrastructure, access to suppliers, similar businesses in area)
  3. Diseconomies of scale: definition, types (bureaucracy, communication problems, lack of control, distance between top management and workers), the use of long run average cost (LRAC) curve diagram annotated to show internal economies of scale and diseconomies of scale and where the business will be most efficient

Lesson Note

A business owner who cannot say what it costs to make one more unit, or how much profit that unit earns, is flying blind. The formulae in this lesson turn a pile of receipts and sales figures into the numbers that actually drive business decisions.

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Lesson Evaluation

Congratulations on completing the lesson on Business Costs, Revenues And Profit. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.

You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.

Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.

  1. Total cost is calculated as: A) Total fixed costs minus total variable costs B) Total fixed costs plus total variable costs C) Total revenue minus profit D) Average cost multiplied by price Answer: B
  2. A firm's total cost of producing 400 units is GBP 8,000. What is its average cost? A) GBP 8 B) GBP 20 C) GBP 32 D) GBP 3,200,000 Answer: B
  3. A firm sells 150 units at GBP 30 each and has total costs of GBP 3,800. What is its profit? A) GBP 500 B) GBP 700 C) GBP 4,500 D) GBP 8,300 Answer: B
  4. Which of the following is an example of an internal economy of scale? A) A shared pool of skilled local workers B) A large firm negotiating a bulk-buying discount from suppliers C) New roads built to serve a growing industrial area D) Specialist suppliers setting up nearby to serve an industry cluster Answer: B
  5. On a long run average cost (LRAC) curve, the minimum efficient scale is: A) The output level where fixed costs are highest B) The smallest output at which long run average cost reaches its lowest point C) The output level where profit is zero D) The largest possible output a firm could ever produce Answer: B

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Full lesson notes with diagrams
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Available on Android, Windows, macOS, and Linux

Available on the Green Bridge App

Download the Green Bridge CBT app on your phone or computer to access full lesson notes, practice questions, and more.

Full lesson notes with diagrams
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Study offline, anytime, anywhere
Available on Android, Windows, macOS, and Linux

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