A. The Effective Price of Heroin Traditional representations of demand curves assume that the dollar price of a good is the only significant element of the cost to the consuming individual. For most goods, other aspects of consumption such as transaction costs and uncertainty about quality are assumed to play a minor role. Not so with heroin. Heroin is different because, first, users face significant transaction costs. Often they must search intently for an opportunity to score. In addition, in any attempt to score they risk being arrested or victimized by other addicts. The consequences of these transaction costs include withdrawal symptoms, beatings, and jail. Second, users face quality uncertainties which may be even more significant. The amount of pure heroin and the toxicity of adulterants vary widely among street bags. The possible consequences include fraud and death. Against these possible consequences of purchasing and using heroin, the dollar price may be relatively unimportant.Consequently, in describing the cost of consuming heroin, it is best to speak in terms of an effective price of heroin. The eff ective price is defined as an index including the following elements: dollar price, amount of pure heroin, toxicity of adulterants, access time, and threats of victimization and arrest. Many of these elements are uncertain quantities from the point of view of the consumer.

In this paper we present and estimate a model of economic depreciation consistent with producer's optimization. The estimated economic depreciation, which is a function of the rate of utilization and level of maintenance, is about half of that used according to tax (accounting) depreciation. The difference between the economic and tax rates of depreciation results in a subsidy and earlier capital replacement. The implicit maximum net tax subsidy expressed as a proportion of the acquisition price of the asset is 13.3% for a sample of Canadian trucking firms.

Reviews the book "Advanced Accounting, an Organisational Approach," by Norton M. Bedford, Kenneth W. Perry and Arthur R. Wyatt.

Reviews the book "Electronic Data Processing, an Introduction," by F.W. Martin.

Reviews the book "Management Accounting," by Robert N.Anthony.

Reviews the book "Railroad Accounting and Statistics," by Edward H. Bunnel.

Frequently, the decision to replace or not to replace a plant asset is handled as a separate problem and is not included as a part of the general capital investment problem. This separation has probably resulted in part from the attention given to replacement decisions in engineering economy studies. Engineering studies are made to determine which units of equipment can give the best service at the lowest possible costs. Equipment in operation is in constant competition with new and improved models as they become available on the market and at some point in the life of a piece of equipment replacement may bring about the desired performance at a minimum annual cost. The objective in many replacement studies is to time the replacements so that annual costs will be minimized. The replacement type of decision is also isolated from general capital investment planning because of a difference in point of view that may be attributable to a difference in the level of administrative control. In replacement studies the equipment cost, the future costs of operation and the future salvage values are carefully estimated and applied in an effort to hold costs to a minimum.

A graph similar in concept to the conventional profit-volume graph can be used in capital investment planning and can be especially useful in the analysis of relatively complex investment situations. The net discounted cash flow line for the most profitable investment candidate crosses the expected cost of capital line or zone at the highest point. In a large number of investment situations, this line will also cross the internal rate of return line at the highest discount rate and will be above all other discounted cash flow lines at all points. There are also investment situations in which the discounted cash flow lines for the various alternatives will cross. The line for the most profitable alternative does not necessarily lie to the right of the other lines when it crosses over the internal rate of return line. It will, however, be the highest line when it crosses the expected cost of capital line or zone. The line of limitation can be used to predict the cost within reasonable limits.

This article focuses on experience in teaching electronic data processing without a computer. The objective specified in the three courses is lot to train computer operators or programmers. Rather, the courses are intended to give the students enough information so they are able to evaluate intelligently the impact an significance of electronic computers on the type of work for which they are being trained. In the classroom it has been possible to teach the students the principles of flow charting and writing programs of instructions, but one does not get a sense of completeness unless it is possible to carry a problem all the way from definition to actual operation of the computer. In order to do this, arrangements were made with the Rich Electronic Computer Center at Georgia Institute of Technology to use their electronic computers for actual problem solving. Information coming back to the campus from former students indicates that even these introductory courses have had a significant effect on the direction and type of work being done by several of our graduates in business administration.

The training of students in auditing courses for the passing of the CPA examination in auditing is, of course, considered secondary to the successful training of those students to the extent that they are enabled to enter the public accounting profession well qualified to perform expeditiously the auditing tasks assigned to them. While this examination is not the major objective of the students or their instructors, it does provide the accepted measurable means by which the technical knowledge of the applicants is judged. This article, presented from the viewpoint of one who has had years of public accounting experience and who is a teacher of auditing in a metropolitan university; reviews this medium, the auditing phase of the CPA examination, in an objective manner, and presents material for consideration and discussion on various phases relating to the subject. This paper has made a review of the examinations prepared by the Board of Examiners of the American Institute of Accountants as presented from 1942 to May, 1946.