A review of: “COST ESTIMATING”, Rodney Stewart,Second Edition,John Wiley and Sons,Inc., New York, 1991, xxi + 359pp., ISBN 0-471-85707-6. List $54.95

In a previous paper Khan and Fiorino analyzed four energy saving projects. They found that use of the Capital Asset Pricing model to account for risk implied that the projects’ required rates of return were less than the return on riskless assets. Effectively lie projects bad negative risk. These negatively with macro economic activity. The current paper has two objectives: (1) to show that cafes of negative risk are rare and unimportant, and (2) to show that the assumption of negative covariance between energy price and the level of economic activity is incorrect.     

A review of: “PROJECT MANAGEMENT IN MANUFACTURING AND HIGH TECHNOLOGY OPERATIONS” by Adedeji B. Badiru,John Wiley and Sons,Inc., New York, 1988, xxii + 319 pp., ISBN 0471-62892-1, List $44.95.

The conventional approach to considering working capital cash flows in capital budgeting is to omit them or include some ad hoc figures at the initiation and termination of the project. The authors argue for an endogenous system of estimating relevant working capital cash flows on a periodic basis. Otherwise, the present value of working capital cash flows is biased against the project's acceptance. Examples of calculating working capital cash flows as related to changes in annual sales are presented for three time patterns of sales and contrasted to the conventional method. An empirical study of the linear relationship of net working capital and sales revenue of 770 companies is reported, and an alternative cash flow model is offered thai includes working capilal cash flows.     

A review of: “COST ENGINEERING FOR EFFECTIVE PROJECT CONTROL” by Sol A. Ward,John Wiley & Sons,New York,NY, 1992, viii + 227 pp., ISBN 0-471-52851-X. List $54.95.

Our survey of the investor-owned electric utility companies and utility commissions indicates that the use of asset pricing models for estimating the cost of equity is limited in this industry. The respondents cite unfamiliarity with the arbitrage-pricing model as a main reason for not using it. Use of the capital asset pricing model is also less than one would expect. However, deregulation of the industry could create a need for more-precise quantification of risk. In the new environment, utility companies may find asset-pricing models more useful.