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.