Summary Edexcel A-Level Economics, Theme 1: How Markets Work - Theory of Supply, Surplus, PES, Price Determination
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Course
Theme 1: How Markets Work
Institution
PEARSON (PEARSON)
A summary of:
- How the supply curve is derived, moves and shifts.
- Process of price determination
- Producer and consumer surplus
- Price Elasticity of Supply
All with diagrams
, DEFINITIONS + ASSUMPTIONS
Supply = the amount that firms are willing and able to produce and sell at every given price level in a give
time period.
Market supply = total supply brought to the market by producers at each price. To calculate, sum the
individual supply schedule.
Law of Diminishing Marginal Returns = in the SR, adding an additional unit of a variable factor of productio
to a fixed factor of production results in additional output first increasing and then falling.
Marginal cost = the cost of producing an additional unit of output.
Joint supply = a increase/decrease in the supply of one good leads to an increase/decrease in the supply of
by-product.
◦ Occurs when a production process yields two or more outputs e.g. lamb and wool; beef and beef hides.
It is assumed that firms are: PROFIT MAXIMISERS.
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