if workers at the school canteen sell during the holidays, this is an example of?

the organisation of productive factors is the reponsibility of the?

a downward sloping demand curve means that?

goods whose demand vary directly with money income are called?

producers operating in a free market economy are more efficient as a resulf of?

an exceptional demand curve can result from?

if the price of commodity X rises and consumers shift to commodity Y, then commodity X and Y are?

Economic problem arise in all society because?

which of the following is not emphasized in a production possibility curve