01210cam a2200277 4500 335205990 ER5 20100317120000.0 090713s2010||||||||||||||||||||||||eng|u 2009027460 9780761339120 LIB $25.26 0761339124 LIB $25.26 ER5 Larson, Jennifer S., 1967- Who's buying? Who's selling? : understanding consumers and producers [Easy Readers] : Understanding Consumers and Producers / Jennifer S. Larson. Minneapolis : Lerner Publications Co., 2010. 32 p. : col. ill. ; 27 cm. Includes bibliographical references (p. 31) and index. Introduces the role of consumers, producers, buyers and sellers in the marketplace; discusses the relationship between cost and benefit; and includes information on supply and demand. Commerce Juvenile literature. Commerce. Consumption (Economics) Juvenile literature. Consumption (Economics.) Supply and demand Juvenile literature. Supply and demand.