Topic 3 - Price elasticity of supply Flashcards
Price Elasticity of Supply =
Measures the responsiveness of quantity supplied to a change in price
Supply is ELASTIC when…
a change in price leads to a larger change in quantity supplied (more responsiveness)
Supply is INELASTIC when…
a change in price leads to a smaller change in quantity supplied (less responsiveness)
PES Formula =
% change in Quantity Supplied / % change in Price
Supply is PRICE ELASTIC when…
PES is GREATER than 1
Supply is PRICE INELASTIC when…
PES is LESS than 1
Supply is UNITARY when…
PES is EXACTLY 1
Supply is PERFECTLY ELASTIC when…
PES is infinity
Supply is PERFECTLY INELASTIC when…
PES is 0
Determinants of PES =
1) Length of production period (the longer the period, the more inelastic)
2) Availability of spare capacity (the more spare capacity, the more elasticity)
3) The ease of storage (more ease, more elastic)
4) The ease of factor substitution (alternative uses)
5) Number of firms in the marker and the ease of entering the market
6) Time (long run - elastic)
Determinants of Supply =
Productivity Indirect taxes Number of firms Technology Subsidy
Weather
Cost of production