"The primary difficulty is the problem of determining what the interest of business is.At any given time, business corporations are split on many national issues; there does not appear to be a monolithic ‘business interest.’ Thus, petroleum companies have opposed liberal oil import quotas, while petrochemical companies have favored them in order to obtain less expensive feedstocks; steel companies have sought restraints upon imports of foreign steel, whereas automobile companies and other large users of steel have fought them; and even with respect to such matters as labor union legislation or antipollution regulation, businessmen are far from presenting a united front because firms in some industries are much more deeply affected than those in other industries."