What will be the simultaneous change in the demand and the supply curve , provided 1) increase in demand >decrease in supply
2) increase in demand3) increase in demand = decrease in supply????

Dear student
1) Increase in demand >Decrease in supply
When increase in demand is proportionately more than decrease in supply, the demand curve will shift rightwards and is proportionately more than leftward shift in supply curve .
2) Increase in demand < Decrease in supply
When increase in demand is proportionately less than decrease in supply, demand curve will shift rightwards and is proportionately less than leftward shift in supply curve .
3) Increase in demand = Decrease in supply
When increase in demand is proportionately equal to decrease in supply, then demand curve will shift rightwards and is proportionately equal to leftward shift in supply curve .

Note:- 2)assumed .It was not clear.
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