HKB
a time of rising prices, reliance upon reproduction cost to the exclusion of original cost will produce results satisfactory to the utility and undesirable to the public, and vice versa.
Notwithstanding the admonition of Smyth v. Ames that original cost, no less than reproduction cost, was to be considered in determining value, the Court, in the years which intervened between 1898 and 1944, wavered only slightly in its preference for the reproduction cost formula, and moderated its application thereof only in part whenever periods of rising or sustained high prices appeared to require such deviation in behalf of consumer interests. As examples of the varied application by the Court of the reproduction cost formula, the following cases are significant: San Diego Land and Town Co. v. National City, 174 U.S. 739, 757 (1899); San Diego Land & Town Co. v. Jasper, 189 U.S. 439, 443 (1903); Willcox v. Consolidated Gas Co., 212 U.S. 19, 52 (1909); Minnesota Rate Cases, 230 U.S. 352 (1913); Galveston Electric Co. v. Galveston, 258 U.S. 388, 392 (1922); Missouri ex rel. Southwestern Bell Teleph. Co. v. Public Service Commission, 262 U.S. 276 (1923); Bluefield Waterworks & Improv. Co. v. Pub. Serv. Comm., 262 U.S. 679 (1923); Georgia R. & Power Co. v. Railroad Comm., 262 U.S. 625, 630 (1923); McCardle v. Indianapolis Water Co., 272 U.S. 400 (1926); St. Louis & O'Fallon Ry. v. United States, 279 U.S. 461 (1929).
(3) Prudent Investment (versus Reproduction Cost).--This method of valuation, which was championed by Justice Brandeis in a separate opinion filed in Southwestern Bell Teleph. Co. v. Pub. Serv. Comm. (262 U.S. 276, 291-292, 302, 306-307 (1923)), was defined by him as follows: "The compensation which the Constitution guarantees an opportunity to earn is the reasonable cost of conducting the business. Cost includes not only operating expenses, but also capital charges. Capital charges cover the allowance, by way of interest, for the use of the capital, * * *; the allowance for the risk incurred; and enough more to attract capital. * * * Where the financing has been proper, the cost to the utility of the capital, required to construct, equip and operate its plant, should measure the rate of return which the Constitution guarantees opportunity to earn." Advantages to be derived from "adoption of the amount prudently invested as the rate base and the amount of the capital charge as the measure of the rate of return" would, according to Justice Brandeis, be nothing less than the attainment of a "basis for decision which is certain and stable. The rate base would be ascertained as a fact, not determined as a matter of opinion. It would not fluctuate with the market price of labor, or materials, or money. * * *"
As a method of valuation, the prudent investment theory was not accorded any acceptance until the depression of the 1930's. The sharp decline in prices which occurred during this period doubtless contributed to the loss of affection for reproduction cost; and in Los Angeles Gas Co. v. R.R. Comm'n., 289 U.S. 287 (1933) and R.R. Comm'n. v. Pacific Gas Co., 302 U.S. 388, 399, 405 (1938) the Court upheld respectively a valuation from which reproduction cost had been excluded and another in which historical cost served as the rate base. Later, in 1942, when in Power Comm'n. v. Nat. Gas Pipeline Co., 315 U.S. 575, the Court further emphasized its abandonment of the reproduction cost factor, there developed momentarily the prospect that prudent investment might be substituted. This possibility was quickly negatived, however, by the Hope Gas Case (320 U.S. 591 (1944)) which dispensed with the necessity of relying upon any formula for the purpose of fixing valid rates.