Production
Possibility Curve
The choices
that society must take are often presented in terms of production
possibility curve. The production possibility curve is related to
the concept of opportunity cost that you were introduced earlier.
Opportunity cost can be seen numerically with a production possibility
table - a table that lists a choice's opportunity costs by summarizing
what alternative outputs you can achieve with your inputs. Where output
- a result of an activity, input - is what you put into a production
process to achieve an output. The
information in the production possibility table can be presented
graphically in a diagram called a production possibility curve.
A production possibility curve is a curve measuring the maximum
combination of outputs that can be obtained from a given number
of inputs. It is a graphical representation of the opportunity cost
concept. A production possibility curve is created from a production
possibility table by mapping the table in the two-dimensional graph.
The downward slope of the opportunity cost curve represents the
opportunity cost concept - you get more of one benefit only if you
get less of another benefit.
The production possibility curve demonstrates
that:
1. There is a limit to what you can achieve,
given the existing institutions, resources, and technology.
2. Every choice you make has an opportunity
cost. You can get more of something only by giving up something
else.
The table contains the information on the
trade -off between the production of the guns and butter. This information
has been plotted on the graph. As we move along the production possibility
curve from A to F, trading butter for guns, we get fewer and fewer
for each pound of butter given up. That is the opportunity cost
of choosing guns over butter increases as we increase the production
of guns. This concept is called the principle of increasing marginal
opportunity cost. The phenomenon occurs because some resources are
better suited for the production of butter than for the production
of guns, and we use the better ones first.
| % of resources devoted to production of guns |
Number of guns. |
% of resources devoted to production of butter. |
Pounds
of butter. |
Row. |
| 0 |
0 |
100 |
15 |
A |
| 20 |
4 |
80 |
14 |
B |
| 40 |
7 |
60 |
12 |
C |
| 60 |
9 |
40 |
9 |
D |
| 80 |
11 |
20 |
5 |
E |
| 100 |
12 |
0 |
0 |
F |

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