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Productive Efficiency

Average costs, waste and product development lead times

  • 3 things to know
  • Papers 2 and 3

Overview

Average cost and calculating it, reducing waste and price competitiveness, lean production against economies of scale, lead time in product development and the advantages, lower risk and better cash flow of a short one, simultaneous engineering, the social value of less waste, calculating profit, and why lower average cost does not guarantee profit.

What you need to know

Answer each one before you reveal it.

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Key term

Define average cost.

Numbers

A firm's total cost is £180,000 at an output of 6,000 units. Calculate its average cost.

Numbers

A firm cuts total cost from £180,000 to £162,000 while still producing 6,000 units. Calculate the new average cost and the percentage fall.

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    Define average cost.

    Model answer

    Average cost is total cost divided by the quantity of output produced.

  2. 2

    A firm's total cost is £180,000 at an output of 6,000 units. Calculate its average cost.

    Model answer

    Average cost is £30 per unit.

  3. 3

    A firm cuts total cost from £180,000 to £162,000 while still producing 6,000 units. Calculate the new average cost and the percentage fall.

    Model answer

    Average cost falls from £30 to £27 per unit, a fall of 10%.

  4. 4

    How does reducing waste lower average cost?

    Model answer

    Fewer materials and hours are consumed for each saleable unit, so the total cost of producing a given output falls.

  5. 5

    How do lower average costs improve a firm's price competitiveness?

    Model answer

    The firm can set a lower price and still cover its costs, so it can undercut rivals whose costs are higher.

  6. 6

    Distinguish between lowering average cost through lean production and lowering it through economies of scale.

    Model answer

    Lean production lowers cost at any given output by removing waste, whereas economies of scale lower cost by increasing the scale of output.

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