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In microeconomics, a production–possibility frontier (PPF), production possibility curve (PPC), or production possibility boundary (PPB) is a graphical representation showing all the possible options of output for two that can be produced using all factors of production, where the given resources are fully and efficiently utilized per unit time.
The production possibilities frontier (PPF) for guns versus butter. Points like X that are outside the PPF are impossible to achieve. Points such as B, C, and D illustrate the trade-off between guns and butter: at these levels of production, producing more of one requires producing less of the other. Points located along the PPF curve represent ...
PPC – powered positioning caliper (Schlumberger dual-axis wireline caliper tool) [24] ppcf – pounds per cubic foot; PPD – pour point depressant; PPE – preferred pressure end; PPE – personal protective equipment; PPFG – pore pressure/fracture gradient; ppg – pounds per gallon; PPI – post production inspection/intervention
Productive capacity has a lot in common with a production possibility frontier (PPF) that is an answer to the question what the maximum production capacity of a certain economy is which means using as many economy’s resources to make the output as possible. In a standard PPF graph, two types of goods’ quantities are set.
An example PPF: points B, C and D are all productively efficient, but an economy at A would not be, because D involves more production of both goods. Point X cannot be achieved. Productive efficiency occurs under competitive equilibrium at the minimum of average total cost for each good, such as the one shown here.
The PPF is linear with a downward slope in two circumstances: If the technology for gathering coconuts and hunting fish exhibits constant returns to scale; If there is only one input in production; So in the Robinson Crusoe economy, the PPF will be linear due to the presence of only one input.
The Ricardian model of comparative advantage has trade ultimately motivated by differences in labour productivity using different "technologies". Heckscher and Ohlin did not require production technology to vary between countries, so (in the interests of simplicity) the "H–O model has identical production technology everywhere".
The difference is quite significant when dealing with gases, and it is very important to specify which quantity is being used. For example, the conversion factor between a mass fraction of 1 ppb and a mole fraction of 1 ppb is about 4.7 for the greenhouse gas CFC-11 in air (Molar mass of CFC-11 / Mean molar mass of air = 137.368 / 28.97 = 4.74).