# Engineering Economics

## Time Value of Money and its importance

Time  value of money is one of the most important concepts in finance.  It means that the value of a rupee received one year from now is not the same as the value of a rupee received today. The concept of time value of money deals with the fact that can amount of money as …

## Elements of cost- Prime and Overheard Cost

Elements of cost: There are three elements of cost: 1. Material cost 2. Labor cost and 3. Expenses Material Cost: cost of raw materials, spare parts, consumable materials, packaging materials Labor Cost: cost of skilled and unskilled labor employed in construction or production processes Expenses: cost of special design, drawings or layouts, cost of purchase …

## Compounding and discounting

The process of calculating future values = compounding, ie the sum of beginning amount and the interest earned. The process of finding out the present value = discounting ie the inverse of compounding. Basically for a single cash flow: F = P [F/P, i%, N] F = P (1+i)N !!! The following are the cases …

## Benefit to Cost Ratio (B/C or BCR):

B/C ratio is defined as the ratio of equivalent worth of benefit to the equivalent worth of cost. Equivalent worth may be either Present worth (Pw), Annual worth (Aw) or Future worth (Fw). Benefit to Cost ratio is also known as Profitability Index (PI) being the indicator of the profit. Types of B/C Ratio: Conventional …

## Break Even Analysis (BEA)

Break Even Analysis is a term given to the study of the inter-relationship between cost, volume and profits at various levels of activities. It is the most widely known form of the cost-volume-profit analysis. It is one of the most important techniques of profit planning and control. Advantages of Break Even Analysis: It is a …

## Payback Period

The period of time required to recover the net investment is called payback period, PB. The project which pays back the initial investment in the smallest period is acceptable under this method. Decision: If (calculated PB < standard  PB) => Accept the project If (calculated PB > standard  PB) => Reject the project Merits of …

## Social Cost Benefit Analysis SCBA vs Cost Benefit Analysis CBA

SOCIAL COST BENEFIT ANALYSIS (SCBA) Introduction Social Cost Benefit Analysis(SCBA) is a methodology developed for evaluating investment projects from the point of view of the society (or economy) as a whole. It is a tool for economic appraisal of a project from social consideration. For the example, when consumers go to the grocery shop to …

## Real World Problems in Controlling Information Systems

One of the most important responsibilities of the management of computer using business firms is to assure the security and quality of its information services activities. Controls are needed that ensure the accuracy, integrity, and safety of the information processing activities and resources of the organization and its end users. Here are three real world …

## Mechanization and its level

echanization is the use of machinery to replace human or animal labor, especially in agriculture and industry. Mechanization is minimizing or reducing labor content so as to maximize performance and economy. It spots the use of control system and instrumentation for automatic or semi-automatic production.

## Economic Variances in Engineering Economics

Types of Economic Variances There are mainly 4 types of variances in engineering economics, namely Direct material cost variance Direct wages/labor cost variance Variable overhead variance Fixed overhead variance Negative (-) variance is always favorable ie actual cost (-) << standard cost (+). 1. Direct material cost variance This is the difference between standard cost …

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