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Engineering economics

By Wikipedia,
the free encyclopedia,

Engineering economics, previously known as engineering economy, is a subset of economics for application to engineering projects. Engineers seek solutions to problems, and the economic viability of each potential solution is normally considered along with the technical aspects.

In the U.S. undergraduate engineering curricula, engineering economics is often a required course. It is a topic on the Fundamentals of Engineering examination, and questions might also be asked on the Principles and Practice of Engineering examination; both are part of the Professional Engineering registration process.

Considering the time value of money is central to most engineering economic analyses. Cash flows are discounted using an interest rate, i, except in the most basic economic studies.

For each problem, there are usually many possible alternatives. One option that must be considered in each analysis, and is often the choice, is the do nothing alternative. The opportunity cost of making one choice over another must also be considered. There are also noneconomic factors to be considered, like color, style, public image, etc., and are called attributes.

Costs as well as revenues are considered, for each alternative, for an analysis period that is either a fixed number of years or the estimated life of the project. The salvage value is often forgotten, but is important, and is either the net cost or revenue for decommissioning the project.

Some other topics that may be addressed in engineering economics are inflation, uncertainty, replacements, depreciation, resource depletion, taxes, tax credits, accounting, cost estimations, or capital financing. All these topics are primary skills and knowledge areas in the field of cost engineering.

Since engineering is an important part of the manufacturing sector of the economy, engineering industrial economics is an important part of industrial or business economics. Major topics in engineering industrial economics are:

  • the economics of the management, operation, and growth and profitability of engineering firms;
  • macro-level engineering economic trends and issues;
  • engineering product markets and demand influences; and
  • the development, marketing, and financing of new engineering technologies and products.[1]

Typical analyses

Other fundamental engineering topics

  1. ^ Engineering Economy, 11th Ed., Sullivan, Bontadelli, and Wicks, Prentice-Hall, New York, 2000
  2. ^ Engineering Firms: A Survey Of Factors Affecting Their Growth & Performance, Industrial Systems Research Publications, Manchester (UK), 2nd. Revised edition 2003, page 1. ISBN 978-0-906321-28-7

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Published - July 2009

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