The internationalization of foods has been hampered by the fact that it is difficult to move technologies from country to country. Efficiency measures the ratio of output to input. The marketing margin is an excellent measure of the efficiency of food marketers. In food marketing, coordination by administered channel has been decreasing relative to coordination by an open-market system. Countervailing power is the power held by major players such as retailers.
Cooperative solutions are possible in a zero-sum game.
There are differences between consumer needs and consumer wants. Moral hazard relates to the possibility of one of the parties to a contract exploiting it after it is established. The main factor influencing the elasticity of demand is price. A Fall in the price of an input moves the supply curve to the left. Price elasticities and total revenue are related.