In the past few decades, methods of linear algebra have become central to economic analysis, replacing older tools such as the calculus. David Gale has provided the first complete and lucid treatment of important topics in mathematical economics which can be analyzed by linear models. This self-contained work requires few mathematical prerequisites and provides all necessary groundwork in the first few chapters. After introducing basic geometric concepts of vectors and vector spaces, Gale proceeds to give the main theorems on linear inequalities?theorems underpinning the theory of games, linear programming, and the Neumann model of growth. He then explores such subjects as linear programming; the theory of two-person games; static and dynamic theories of linear exchange models, including problems of equilibrium prices and dynamic stability; and methods of play, optimal strategies, and solutions of matrix games. This book should prove an invaluable reference source and text for mathematicians, engineers, economists, and those in many related areas.

The author in this article argues that accounting is a liberal arts form of discipline being offered by the colleges of business administration. Accounting is an art. In the process of income determination and asset valuation, one could allocate costs common to more than one period by treating the cost as a function of time, or of production, or of revenue. He insists that the choice and application of these varying principles or approaches is as much a form of art as can be found anywhere. The study of accounting is interdisciplinary rather than a specialization as are many of the other liberal arts subjects. Accounting is also an application of the discipline of mathematics. There has been much written about the need for mathematics as a tool for accounting in forecasting and decision making. In addition to the above, accounting is an application of other disciplines. Psychology is necessarily used to prepare meaningful statements, meaningful, that is, to their reader as well as to their preparer.

Reviews the book "Cost Accounting: Principles and Practice," 6th ed., by John J. W. Neuner.