Show how the short run and the long run can be distinguished in the production process.

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Accepted Answer

>

> [!TLDR]
> Short run: at least one factor fixed. Long run: all factors, including plant size/scale, are variable.
>
> | Basis | Short Run | Long Run |
> |---|---|---|
> | Fixed factors | At least one factor (e.g. plant/machinery, factory building) is fixed | No fixed factor — every input, including capital/plant size, can be varied |
> | Output change | Output can only be changed by altering the variable factors (e.g. labour, raw material) applied to the fixed factor | Output can be changed by altering the entire scale of production |
> | Entry/exit | A firm cannot enter or exit the industry (it is 'stuck' with its existing plant) | New firms can enter and existing firms can exit the industry freely | …

Q.Show how the short run and the long run can be distinguished in the production process.

Concept understanding — Law of Variable Proportions and Returns to Scale

Basis	Short Run	Long Run
Fixed factors	At least one factor (e.g. plant/machinery, factory building) is fixed	No fixed factor — every input, including capital/plant size, can be varied
Output change	Output can only be changed by altering the variable factors (e.g. labour, raw material) applied to the fixed factor	Output can be changed by altering the entire scale of production
Entry/exit	A firm cannot enter or exit the industry (it is 'stuck' with its existing plant)	New firms can enter and existing firms can exit the industry freely

Q.Show how the short run and the long run can be distinguished in the production process.

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