Production possibility diagrams illustrate different features of the fundamental economic problem, such as: resource use allocation, opportunity cost and trade-offs, unemployment of economic resources, economic growth
A production possibility diagram shows the maximum combinations of two goods an economy can produce. It makes scarcity, trade-offs, and growth visible on a single graph.
Real World
After the 2008 financial crisis, the UK economy operated inside its PPF: unemployment rose above 8% and factories ran below capacity, illustrating that actual output can fall short of the productive frontier.
Exam Focus
When drawing a PPC, label both axes with specific goods and mark points inside, on, and outside the frontier — unlabelled diagrams rarely earn full marks.
Price Elasticity of Demand
PED = % change in quantity demanded ÷ % change in price
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