Competition is the final price determinant and competitive prices may result in profits which force you to accept a rate of return less than you hoped for, or for that matter to accept temporary losses. And, in times of inflation, the rate-of-return concept comes up against the problem of assets undervalued in terms of replacement. Nevertheless, no other financial principle with which I am acquainted serves better than rate of return as an objective aid to business judgment. This principle had governed the thinking of the Finance Committee of General Motors since 1917.