Excerpt: The parity price for any agricultural commodity is defined in Section 401 of the "Agricultural Adjustment Act of 1938", as "that price for the commodity which will give to the commodity a purchasing power with respect to articles that farmers buy equivalent to the purchasing power of such commodity in the base period; and, in the case of all commodities for which the base period is the period August 1909 to July 1914, which will also reflect current interest payments per acre on farm indebtedness secured by real estate, tax payments per acre of farm real estate, and freight rates, as contrasted with such interest payments, and freight rates during the base period."