| Economic term, it defines the greatest possible amount of production an economy can churn out at at maximum efficiency. In textbooks it is usually depicted using an economy with only 2 products, however, in reality, the visualization has many dimensions, since no economy produces only 2 goods.
The PPF can be expanded by capital investment, advances in technology, or an increase in the workforce. Inefficiency does not reduce the PPF, it merely places it at a point below the frontier. | 
