The economic problem
All societies face the economic problem, which is the problem of how to make the best
use of limited, or scarce, resources. The economic problem exists because, although the
needs and wants of people are endless, the resources available to satisfy needs and wants
are limited.
Limited resources
Resources are limited in two essential ways:
1. Limited in physical quantity, as in the case of land, which has a finite quantity.
2. Limited in use, as in the case of labour and machinery, which can only be used for
one purpose at any one time.
Choice and opportunity cost
Choice and opportunity cost are two fundamental concepts in economics. Given that
resources are limited, producers and consumers have to make choices between competing
alternatives. All economic decisions involve making choices. Individuals must choose
how best to use their skill and effort, firms must choose how best to use their workers and
machinery, and governments must choose how best to use taxpayer's money.
Making an economic choice creates a sacrifice because alternatives must be given up,
which results in the loss of benefit that the alternative would have provided. For example,
if an individual has £10 to spend, and if books are £10 each and downloaded music tracks
are £1 each, buying a book means the loss of the benefit that would have been gained
from the 10 downloaded tracks. Similarly, land and other resources, which have been
used to build a new school could have been used to build a new factory. The loss of
the next best option represents the real sacrifice and is referred to as opportunity cost.
The opportunity cost of choosing the school is the loss of the factory, and what could
have been produced.