Which of the following is a major determinant of price elasticity of demand?

If Nigeria has comparative advantage over Ghana in producing cocoa, this means_________?

One of the ways of improving the marketing of agricultural produce is by

The study of economics is necessary mainly because of

If price of yams decreases from N15.00 per tuber to N13.50 and the quantity supplied decreases by 20%. What is the elasticity of supply?