If the quantity demanded of a commodity increases from 20 units to 30 units when there is an increase in price from $4.00 to $5.00, the elasticity of demand is
The use of the bank rate, cash ratio and open market operations constitute
Scale of preference shows
Gross National Product (GNP) less the provision for the wear and tear of assets is the
Which of the following factors is not a cause of diminishing returns?
