Goods are things that can be bought. Producers make and sell many kinds of products. For example, some producers make and sell cars. Producers also sell services. For example, a hair-cut is a service a barber sells to a consumer.Producers and consumers depend on each other. For example, farmers in Tennessee sell their crops to consumers. The farmers depend on consumers to earn money. Consumers depend on farmers for food.Many producers specialize. For example, some Tennessee farmers along the Mississippi River specialize in growing soybeans. When producers specialize, they do a better job of providing goods or services that people want.