In: Economics
The Production Possibilities Curve (PPC) is a model used to
illustrate the tradeoffs associated with resource allocation
between two goods. The PPC can be used to illustrate the notions of
scarcity, cost of opportunity, efficiency, inefficiency, economic
growth, and contractions. The Production Possibilities Curve (PPC)
is a model that captures the scarcity and the cost of choice when
faced with the probability of two products or services being
produced. Points on the PPC 's interior are ineffective, points on
the PPC are efficient, and points beyond the PPC are unachievable.
The opportunity cost of moving from one efficient production
combination to another efficient production combination is how much
of one commodity is given up to get more of the other good.
The PPC shape also gives us knowledge about the production process
( i.e. how the resources are combined to manufacture certain
goods). The law of increasing the cost of opportunity tells us
that, as the economy moves along the curve of production
possibilities toward more than one good, its cost of opportunity
will increase. We may infer that as the economy progressed along
this curve toward greater safety efficiency, the opportunity cost
of additional protection started to grow. This is because the
resources transferred to the production of protection from the
production of other goods and services had a greater and greater
competitive advantage in manufacturing items other than health.
A demand change refers to a shift in the entire demand curve,
caused by a variety of factors (preferences, income, substitute and
complement prices, expectations, population, etc.). In this case,
the entire demand curve transitions to either left or right.
A requested change in quantity refers to a move along the demand curve which is caused only by a price chance. In this case the demand curve is not moving; instead we are moving along the current demand curve.