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Demand and Supply Analysis. Demand and supply analysis. The price mechanism: effect of a rise in demand the goods market. S g. . D g. shortage ( D g > S g ). P g. . . D g. ¯. The price mechanism: the effect of a rise in demand. Goods Market. until D g = S g.
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Demand and supply analysis The price mechanism: effect of a rise in demand the goods market
Sg Dg shortage (Dg > Sg) Pg Dg ¯ The price mechanism: the effect of a rise in demand Goods Market until Dg = Sg
Demand and supply analysis The price mechanism: effect of a rise in demand factor markets
Sf Sg Df shortage (Df > Sf) Pf Df ¯ The price mechanism: the effect of a rise in demand Goods Market Sg Dg shortage (Dg > Sg) Pg until Dg = Sg Dg ¯ Factor Market until Df = Sf
Demand and supply analysis The demand curve
Market demand for potatoes (monthly) Market demand (tonnes 000s) 700 Point Price (pence per kg) 20 A Price (pence per kg) A Demand Quantity (tonnes: 000s)
Market demand for potatoes (monthly) Market demand (tonnes 000s) 700 500 Point Price (pence per kg) 20 40 A B Price (pence per kg) B A Demand Quantity (tonnes: 000s)
Market demand for potatoes (monthly) Market demand (tonnes 000s) 700 500 350 Point Price (pence per kg) 20 40 60 A B C C Price (pence per kg) B A Demand Quantity (tonnes: 000s)
Market demand for potatoes (monthly) Market demand (tonnes 000s) 700 500 350 200 Point Price (pence per kg) 20 40 60 80 A B C D D C Price (pence per kg) B A Demand Quantity (tonnes: 000s)
Market demand for potatoes (monthly) Market demand (tonnes 000s) 700 500 350 200 100 Point Price (pence per kg) 20 40 60 80 100 E A B C D E D C Price (pence per kg) B A Demand Quantity (tonnes: 000s)
Demand and supply analysis Shifts in the demand curve
An increase in demand D0 D1 P Price O Q0 Q1 Quantity
A decrease in demand D1 D0 P Price O Q0 Q1 Quantity
Demand and supply analysis The supply curve
Market supply of potatoes (monthly) Supply P 20 Q 100 a Price (pence per kg) a Quantity (tonnes: 000s)
Market supply of potatoes (monthly) Supply P 20 40 Q 100 200 a b Price (pence per kg) b a Quantity (tonnes: 000s)
Market supply of potatoes (monthly) Supply P 20 40 60 Q 100 200 350 a b c c Price (pence per kg) b a Quantity (tonnes: 000s)
Market supply of potatoes (monthly) Supply d P 20 40 60 80 Q 100 200 350 530 a b c d c Price (pence per kg) b a Quantity (tonnes: 000s)
Market supply of potatoes (monthly) e Supply d P 20 40 60 80 100 Q 100 200 350 530 700 a b c d e c Price (pence per kg) b a Quantity (tonnes: 000s)
Demand and supply analysis Shifts in the supply curve
Shifts in the supply curve P S0 O Q
Shifts in the supply curve S1 P S0 Increase O Q
Shifts in the supply curve S2 P S0 S1 Decrease Increase O Q
Demand and supply analysis Market equilibrium
Equilibrium price and output:The Market Demand and Supply of Potatoes (Monthly)
The determination of market equilibrium(potatoes: monthly) e E Supply d D c C Price (pence per kg) b B a A Demand Quantity (tonnes: 000s)
The determination of market equilibrium(potatoes: monthly) SURPLUS (330 000) e E Supply d D c C Price (pence per kg) b B a A Demand Quantity (tonnes: 000s)
The determination of market equilibrium(potatoes: monthly) SHORTAGE (300 000) e E Supply d D c C Price (pence per kg) b B a A Demand Quantity (tonnes: 000s)
The determination of market equilibrium(potatoes: monthly) e E Supply d D Price (pence per kg) b B a A Demand Qe Quantity (tonnes: 000s)
Demand and supply analysis Effect of shift in the demand curve
Effect of a shift in the demand curve An increase in demand P S g Pe1 D1 O Qe1 Q
Effect of a shift in the demand curve P S g Pe1 D1 O Qe1 Q
Effect of a shift in the demand curve P S g Pe1 D2 D1 O Qe1 Q
Effect of a shift in the demand curve i h P S Pe2 g Pe1 D2 D1 O Qe1 Qe2 Q
Effect of a shift in the demand curve A decrease in demand D2 P S g Pe1 D1 O Qe1 Q
Effect of a shift in the demand curve m n P S g Pe1 Pe2 D2 D1 O Qe1 Qe2 Q
Demand and supply analysis Effect of shift in the supply curve
Effect of a shift in the supply curve A decrease in supply P S1 g Pe1 D O Qe1 Q
Effect of a shift in the supply curve P S1 g Pe1 D O Qe1 Q
Effect of a shift in the supply curve P S2 S1 g Pe1 D O Qe1 Q
Effect of a shift in the supply curve k j P S2 S1 Pe3 g Pe1 D O Qe3 Qe1 Q
Effect of a shift in the supply curve S2 An increase in supply P S1 g Pe1 D O Qe1 Q
Effect of a shift in the supply curve q P S1 S2 g p Pe1 Pe2 D O Qe2 Qe1 Q