Describe the ‘Law of diminishing Marginal utility’ with Example.
Satisfaction of human wants follows some very
important laws and one of them is the law of diminishing marginal utility.
The law state that,
The law state that,
“
As the amount of a good consumed increases the marginal utility of that good
tends to diminish.”
For example, Suppose, a person starts eating pieces of
bread one after another. The first toast gives him great pleasure. By the time
he starts taking the second, the edge of his appetite has been blunted and the
second toast, meeting with a less urgent want, yields less satisfaction; the
satisfaction of the third will be less than that of the second; that the fourth
less than that of the third, and so on. The additional satisfaction will go on
decreasing with every successive toast till it drops down to zero; and if the
consumer is forced to take more, the satisfaction may become negative, or the
utility may change into dis utility.
The idea will be clear frame the table 1 and the figure
1(a) given bellow:-
Unit ( Toast)
|
Total Utility
|
Marginal Utility
|
1
|
20
|
20
|
2
|
38
|
18
|
3
|
53
|
15
|
4
|
64
|
11
|
5
|
70
|
6
|
6
|
70
|
0
|
7
|
62
|
-8
|
8
|
46
|
-16
|
The marginal utility at every step should be diminishing.
It will be seen from the table that the total utility of
a quantity of a commodity is maximum when the marginal utility is zero.
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