Abstract This article focuses on the prudent investment theory in public utility rate making. It is author's opinion that successful regulation of public utility rates cannot be accomplished under the fair-value doctrine and that the investment method must be sanctioned if justice is to be done to the consumer, the utility, and the general public as well. Stated somewhat differently the author believes the fair-value basis of rate making altogether impracticable and unworkable, that it is basically wrong in its economic concept, that the circumstances which gave birth to the principle have long since ceased to exist, and that is a reasonably good job of public utility rate regulation is to be achieved it is through investment approach. No review of rate regulatory procedures in this country would be complete without a brief reference to leading decisions of the Supreme Court of the U.S. on the subject. Not only did the fair-value doctrine, which plagued regulation for many years, have its real genesis in a decision of that Court, but the decisions of that body have greatly influenced the thinking and pretty well dominated the practices in respect to public utility rate regulation.
Charles A. Smith (Mon,) studied this question.