The large part of Canadian experience with controls affecting primary products has been acquired under the peculiar conditions of war. With expanding income in the hands of consumers, prices generally rose rapidly during 1941, and the general price ceiling was established in December of that year. Since then the incomes of consumers have continued to expand, and the general ceiling has been supported by taxation, borrowing, and informal and formal rationing. However, given the ceiling and the level of spendable incomes on the one hand, and the supplies of labour and equipment available to producers on the other, producers' prices were frequently too low to induce sufficient production to prevent the necessity of more extended formal rationing; to provide for desired expansion in domestic consumption, and to meet the urgent need for food for export. Producers' prices have therefore been supported; the object of the supports being primarily to direct production in line with the national policy, and only incidentally to raise producers' incomes. In a few cases, notably, wheat and apples, supported prices have been applied to maintain incomes against a decline in demand. The price of wheat has been supported by stock accumulation, quotas, and acreage reduction. Apples have been purchased and diverted to alternative markets.
In 1942, wheat, dairy products, hogs, cattle, and poultry products together provided more than 70 per cent of the gross, cash income from the sale of farm products in Canada. Wheat has been purchased by the Canadian Wheat Board at a fixed statutory price. Minimum prices have been established for beef and butter, which are sold mainly on the domestic market; export contracts assisting in clearing the Canadian market of surpluses. Prices of hogs, cheese, and eggs have been supported by contract prices agreed upon by the British Ministry of Food, and financed largely under the provisions of Mutual Aid.