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Production Theory

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THE PRODUCTION

THEORY
PRODUCTION refers to the use
of economic resources to
create goods and services that
will be used to satisfy human
wants.

THEORY OF PRODUCTION is
an analysis of the input-output
relationship
INPUT refers to the resources
used to produce goods and
services.

OUTPUT refers to the product


created as a result of the
combination of input in the
production process
PRODUCTION FUNCTION is an
equation showing the maximum
output of a commodity that a firm
can produce per period of time with
each set of input.

Input and output are measured in


physical rather than monetary units.

Output = f (input) or O = f(I)


To be more specific, output
depends on the quality of land,
labor, and capital available.
Thus:
O = f( Ld,Lb,C)
The production function
contains the functional
relationship between output and
the basic factors of land, labor,
and capital.
These basic factors complement
each other as they are used in the
production of goods and services.

Output produced is measured in


three forms:
1. Total Product (TP) is the
combined production of several
units of a given input.
2. Marginal Product (MP) is the
additional output produced by
an additional unit of the input
and is equal to ∆TP/∆i
3. Average Product (AP) refers
to the average contribution
per unit of input and is equal
to TP/i
Assume that the variable input is labor
measured in man hours and is combined
with fixed units of capital and land.
Quantity of Labor Input Total Product Marginal Product Average Product
1 10 10 10
2 22 12 11
3 37 15 12.3
4 55 18 13.8
5 69 14 13.8
6 77 8 12.8
7 80 3 11.4
8 81 1 10.1
9 81 0 9
10 80 -1 8
Initially, the addition of additional
labor input leads to a
proportionately greater increase in
total product or output (TP). This
results in increasing values of MP
and AP and corresponds to labor
input from 1-4. As more input of
labor are added , Total Product
continues to increase but already at
a decreasing rate. This happens
from the 5th to the 9th input of labor.
Hence, the Marginal Product and
Average Product already show
decreasing values. Upon the
addition of the 10th input of labor,
The Marginal Product is now
negative.
The stage where Total Product is
increasing at a fast rate is the stage
of increasing returns. Here,
Marginal Product and Average
Product are both increasing.
When Total Product is increasing
at a slower rate and Marginal
Product and Average Product are
both decreasing, we have the stage
of diminishing returns.

When Total Product decreases


and as a result Marginal Product is
negative, we enter the stage of
negative returns.
The production behavior leads us
to the Law of Diminishing Marginal
Returns. It is in reference to the
diminishing values of Marginal
Product (MP)
The law states that as additional
output starts to diminish at a certain
point as additional units of a
variable input are combined with
one or more fixed input.
The reason for this behavior
can be traced to the constraints
faced because of the fixed
resources that are used in
complement with the variable
input, which in this case is labor.
SIGNIFICANCE OF PRODUCTION
THEORY IN BUSINESS
A business is engaged in providing
goods and services to customers with
the goal of making profits.
It is therefore important for the
business proprietor to be aware of the
production behavior that will maximize
the output within limited quantities of
output available.
This in turn will help maximize profits
for the enterprise.

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