The question of distribution is one of the most important and most difficult problems in commercial vegetable gardening. The main cause of market slumps is uneven distribution. The supply of a given vegetable may be meager in one city and plentiful in another. Were the crops of the country as a whole evenly distributed, slumps and extremely low prices would seldom occur. The individual should do all in his power to prevent crowding the market, but he is practically helpless in most instances. It is a question for organizations to deal with, and it is considered more fully in the next chapter on co-operative associations.