Previous posts have gone over the description and construction of the production possibilities frontier, but have always assumed that the PPF stayed where it was or that everything else was held constant. However, in the real world several events can occur that would cause the PPF to shift, or cause changes in its shape.
The most common reason a PPF would shift is because of a change in technology, or because of economic growth. For example, if someone developed a faster computer, or a more efficient way of manufacturing cars, we might see a shift right in the PPF. This means that everything else held constant (ceteris paribus) more goods can be produced after the technological change. The outward shift could also occur as a result of economic growth, which allows more production of both capital and consumer goods. The graph below shows this change:
It is also possible for a natural disaster to hit which destroys some of the inputs in the production process. Imagine if a hurricane took out a factory, then we would see lower production in the economy as a result. This would be shown as follows, in the PPF graph:
Likewise, if capital grows over time, then we could see the PPF curve shift out (representing higher possibilities for production:
Finally, we could add some dynamics into the shifting process by allowing a choice in capital goods, or consumption goods to affect how much the PPF shifts out. For example, if we choose to produce at point A, then we will have a relatively low amount of consumption goods (pizza, clothes, parties, etc.) and a high amount of capital goods (roads, factories, schools and training), and this will cause the PPF curve to shift out quite a bit. However if we choose to produce at point B, everyone will be happy because they will have a lot of consumption (which gives us utility and thus makes us happy), but in the future we won't have as many capital goods, so the PPF doesn't shift out quite as far.
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| Point A shows a choice high in capital goods, which leads to large growth. |
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| Point B shows a choice high in consumption goods, which leads to small growth. |
Some believe that the United States is at a point closer to B than A right now because of the small investment we are seeing in capital goods. Most people in the United States have a very small savings rate, and spend most of their money on food, entertainment, clothes, and other goods that need to be replaced every year. However, when more money is saved, banks can use that money to invest in larger businesses or houses, which would be around for a long time and would increase our PPF by more.
25 comments:
So, would a factor such a high unemployment shift the curve, or just mean we are operating inside the curve?
Great question, all resources have to be being used efficiency to be on the PPF so the fact that we have unemployment means that labor is not being used efficiently ---> inside the PPF.
An example of a shift due to labor would be if labor someone became less educated or used technology/capital in the production process.
Banning children/woman from the workforce would also cause an inward shift of the PPF.
What happens to price of a product if we were to produce more capital goods than consumer goods?
Hw does loss of confidence affect economy's production possibility curve
What ate the factors responsible for the construction of the PPF?
If job training is given to the workforce what will happen to ppf???
@Akash, it will probably shift it out (like an increase in tech).
@anonymous1 we don't know without information on preferences
@anonymous2 again, we don't know without information on preferences or technology or inputs, in theory it will have no impact on the PPF but may result in lower production (when considering preferences)
@anonymous3 technology and inputs
It would mean you are inside the curve, as the PPC assumes full employment of people and resources.
So when its shown, where at what point would the production possibilities curve be shown at ?
What would happpen if unemployment in a country is really high???
Vent for surplus means when an economy produces good more than that it can consume, i.e., it produces a surplus, this underutilization causes an inward movement on the ppf.... My question is, how does underutilization of surplus cause an inward movement on the ppf?
If the ppc shift to right will it be parallel to the old one ?
Does the points on the ppf move as well when the curve outwards/inwards?
If the natural resources are decreasing and technology is increasing, in which direction should PPF shift?
Is the shift parallel
Is the shift parallel
What happens to the ppc when there is a tight fiscal policy
What would happen to the PPF if trade and specialization occurred???
What happens to the production possibility curve when the unemployment falls
The curve wouldn't shift, there would be I dot inside of the curve and that would indicate that you're being inefficient with your resources.
Why we assume only two commodity while expressing ppc
Yeah, what the other Anon asked, would trade affect the production possibility curve by making it expand outwards?
how the ppf affect a new mineral resource in the country?
what would happen if the points are outside of the production possibility frontier and inside the production possibility frontier?
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