2.6 - Price elasticity of supply Flashcards
Define PES
Responsiveness of quantity supplied to a change in price
State the PES formula
% change in Qs / % change in P
Is PES normally positive or negative
Positive
Elastic PES
PES > 1
Unitary PES
PES = 1
Inelastic PES
PES < 1
List the 3 determinants of PES
- Time
- Availability of factors of production
- Stock and used capacity
Explain time as a determinant of PES
In the short rune, PES tends to be more inelastic whilst in the long run, it tends to be more elastic.
Explain availability of factors of production as a determinant of PES
The easier it is for producers to access factors of production, the more elastic PES tends to be.
Explain stock and used capacity as a determinant of PES
PES tends to be relatively elastic when producers have spare capacity because producers can easily meed demand when price increases.