DEMAND	SUPPLY
Pe -- expected price Pog -- price of other goods 1) substitute goods 2) complementary goods 3) independent goods I -- income 1) normal goods 2) inferior goods N -- number of POTENTIAL consumers T -- tastes and preferences	Pe -- expected price Pog --produced by same firm Pres -- price of resources T --technology T --taxes and subsidies N -- number of sellers

Increase in Demand

Decrease in Demand

Increase in Supply

Decrease in Supply