Economics is the study of how limitedresources is used to satisfy unlimited human wants.
Economics is the study of how individuals and societies choose to use scarce resources that nature and previous generations have provided.
TYPES OF RESOURCES ARE LANDLABORCAPITAL
LAND - All gifts of nature, such as: water, air, minerals, sunshine, plant and tree growth, as well as the land itself which is applied to the production process.
LABOR - The efforts, skills, and knowledge of people which are applied to the production process.
Real Capital (Physical Capital ) – Tools, buildings, machinery -- things which have been produced which are used in further production
Financial Capital – Assets and money which are used in the production process
Human Capital – Education and training applied to labor in the production process
Pioneer: ArthurM.Wellington, civil engineer latter part of nineteenth century; addressed role of economic analysis in engineering projects; His area of interest: railroadbuilding. Followed by other contributions which emphasized techniques depending on financial and actuarial mathematics.
PRINCIPLES OF ENGINEERING ECONOMY 1. Develop the Alternatives 2. Focus on the Differences 3. Use a Consistent Viewpoint 4. Use a Common Unit of Measure 5. Consider All RelevantCriteria 6. MakeUncertaintyExplicit 7. RevisitYourDecisions
DEVELOP THE ALTERNATIVES - Carefully define the problem! Then the choice (decision) is among alternatives. The alternatives need to be identified and then defined for subsequent analysis.
FOCUS ON THE DIFFERENCES - Only the differences in expected future outcomes among the alternatives are relevant to their comparison and should be considered in the decision.
USE A CONSISTENT VIEWPOINT - The prospective outcomes of the alternatives, economic and other, should be consistently developed from a defined viewpoint (perspective).
USE ACOMMONUNITOF MEASURE - Using a common unit of measurement to enumerate as many of the prospective outcomes as possible will make easier the analysis and comparison of alternatives.
CONSIDER ALL RELEVANT CRITERIA - Selection of a preferred alternative (decision making) requires the use of a criterion (or several criteria). The decision process should consider the outcomes enumerated in the monetary unit and those expressed in some other unit of measurement or made explicit in a descriptive manner
MAKE UNCERTAINTY EXPLICIT - Uncertainty is inherent in projecting (or estimating) the future outcomes of the alternatives and should be recognized in their analysis and comparison.
REVISIT YOUR DECISIONS - Improved decision making results from an adaptive process; to the extent practicable, the initial projected outcomes of the selected alternative should be subsequently compared with actual results achieved.