Both are the
very important and valuable techniques for forecasting and budgeting. Expected
Value means taking a random value or a value which is taken on the basis of the
expectation or on the basis of the probability distribution. In expected value
calculation we take care of some factors which help us to extract the desirable
value for the analysis. We focus on the Number of decision alternatives which
are under the manager control, and then we focus on the state of nature and the
possibilities of the results outcomes and at last the payoff which is the
combination of the whole alternative possible outcomes. In short words we take
all the alternatives and keep them with the future state of nature and
multiplying them with the expected probabilities which are already assigned by
the manager on the basis of his experience and state of mind. The outcome of
the each multiple value adding with the all state of natures and then a
resulting value is consider as a Expected value.
For example
Mr. Mark Mollar wants to purchase a house to secure his income and invest that
in the fixed assets. He have many places options but two options are very
interesting and in his purchasing range because the infrastructure of these places
is in the planning of State government and the proper rates will be high after
the complete infrastructure facilities installation. But there he is in
thinking to purchase which area house and where he invests his capital.
According to the available data and problem solution he perform the following
solution to extract the expected value with keeping in mind all kinds of
situations regarding the infrastructure facilities in these areas. Keeping in
mind the probabilities of each State of Nature are with the ratio of .1 , .5
and .8
Areas State
of Nature 1 State of Nature 2 State of Nature 3 = EV No
Infrastructure within a Year Planned
after 1 or many years
West Town Hill area: .1 x (15,000) +
.5 x (35,000) + .8 x (25,000)= 39,000
Lady Martin
Town: .1 x
(18,000) + .5 x (39,000) + .8
x (20,000) = 35,700
So according to this solution the West Town
Hill area is best for Mr. Mark Mollar to purchase.
The critics
saying as compare to other methods the expected value has many repetitive
trials to extract a result. The probability distribution is very though in it.
That method is suitable for those who have the ability to take the risk.
There is another
method also which is known as Perfect information method to make the decision.
That is possible to use where the Nature is perfectly under control and well
known to make a decision. The most common and mathematically use process is the
Expected Value with perfect information. The solution process is almost is same
like the expected value we have alternatives and different state of nature and
the probabilities and then we calculate them and subtract the results from the
Expected Value without perfect information factor. The nature of the result
helps us to make a decision.
The most usable method for capital budgeting.
According to it the structure of the cost is progressively change with the
passage of time and here the management is to carefully treat the whole conditions
to make a answer. Through Sensitivity Analysis the management can obtain the
best results. If the probabilities assigned to the various states of nature the
results will be more refined and clear. That also increases the area of
analysis in a state of condition for a business team.
Sensitivity
Analysis is mostly use for the complex decision and complex data so the mostly business
organizations use the sensitivity analysis computer based software’s to extract
the results through it. The major use of the sensitivity analysis is in Capital
Budgeting where small changes in figures and data can bring big effects in business
decisions. That’s the reason that method of budgeting and forecasting is known
as Sensitivity Analysis.
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