Demand creates its own supply 
Most of the times 
 
If there is more demand than supply 
The government should encourage 
New investment 
And if necessary 
Encourage import of the shortage 
On the other hand 
If there is more supply than demand 
The government should discourage 
New investment 
And encourage export  
Of the surplus products and services 
 
Thus 
A country can balance demand and supply 
For the welfare of its people
Asif Andalib
http://www.poemhunter.com/poem/demand-and-supply-2/