of the textbook, the authors list three questions that Solution Since the goods produced in market A and market B are perfect substitutes to each other the demand for goods in market A is increasing . This shows that goods in market A are more practical to consumers demands and are of superior quality. Also the after sales service or customer support is good in market A.The increase demand for goods in a particular market say market A also depends upon the target customers. If market A has more of that type of clientale that requires that particular type of goods the demand will naturally increase in this market. Hence demand for goods is base on what is produced, how it is produced and who gets what is produced. .