6. • OP as the original market
price, OQ the equilibrium
quantity demanded and
SS as the supply curve of
mangoes.
• The supply curve of
mangoes for example is
fixed in the market
period and the supply
cannot be increased.
• When the demand for
mangoes
increase, demand curve
DD shifts to D1D1.
7. • The price of the mangoes
goes up from OP to OP1
because the supply is
fixes.
• The supply in the market
continues to be SS
though the demand has
increased.
• Because the supply is
fixed in the market
period, the price rise
when the demand
increases.
8. • When the demand
decreases, the demand
curve shifts to the left.
• Demand curve DD
shifts to the left and its
D2D2 is the new
demand as a
result, the price falls.
• Thus, demand decides
the price in the market
period as the supply is
fixes and cannot be
altered.