Poster entry must illustrate all three types of resources. For example, if you have 50 cents and choose to buy a candy bar, you give up the enjoyment of eating an ice cream cone. If the baker uses a bag of flour to bake bread, she cannot use the same bag of flour to bake cakes. Back Efficiency is increased when firms, nations, and individual produce the goods and services at which they are best, leaving the production of other goods to others. Individuals specialize in jobs they do best, too.
Consumers use the goods and services produced to satisfy their wants and needs.
Individuals are both producers and consumers. Poster entry must illustrate both concepts. Back Goods and tangible objects desired by consumers and supplied by producers. Services are intangible outputs produced in the economy. Poster entry must illustrate both concepts.