Long-run aggregate supply Aggregate demand and aggregate supply Macroeconomics Khan Academy

what is the meaning of a leftward shift in the long-run aggregate supply (lras) curve? This is a topic that many people are looking for. star-trek-voyager.net is a channel providing useful information about learning, life, digital marketing and online courses …. it will help you have an overview and solid multi-faceted knowledge . Today, star-trek-voyager.net would like to introduce to you Long-run aggregate supply Aggregate demand and aggregate supply Macroeconomics Khan Academy. Following along are instructions in the video below:

“We ve talked a lot about aggregate demand over the last few videos so in in this video. I thought i would talk a little bit about aggregate supply in we re going to think about aggregate supply in the long run in economics. Whether it s in micro or macro economics. When we think about long run.

We re thinking about enough time for a lot of fixed costs and a lot of fixed contracts to expire in the short term. You might be stuck into some labor contract or stuck into your using some factory that you ve already paid money for so it was a fixed cost. But over the long run you ll have a chance that factory will wear down. And you ll have a chance to decide whether you want another factory or the price of the factory.

Might change or in the long run you ll have a chance contracts will expire. And you ll have a chance to renegotiate those contracts at a new price that s what we really mean when we talk about the long run. I m going to plot. Aggregate supply on the same axis as we plotted.

Aggregate demand and we re going to focus on the long run now and then we re going to think about what actually might happen in the short run. While we are in fixed price contracts or we already have spent money on something or we have already in some ways..


There are sticky. Things that can t adjust as quickly. But we ll first focus on the long run on this axis. I m just going to plot price and remember we re thinking in macro economic terms.

This is some measure of the prices of the goods and services in our economy. This axis right over here. The horizontal axis is going to be real gdp. Once again.

This is just a model you should take everything in economics. With a huge grain of salt. These are over simplifications of a highly highly complex thing. The economy millions and millions of actors doing complex things human beings.

Each of them and their brain have billions and billions and billions of neurons. Doing all sorts of unpredictable things..


But economists like to make really simplifying super simplifying assumptions. So that we can deal with it in a attractable way and in a even dealing in a mathematical. Way the assumtion that economists often make when we think about aggregate supply and aggregate demand is in the long run. Real gdp.

Actually does not depend on prices in the long run. So. What you have is regardless of what the price is you re going to have the same real gdp. You can view this as a natural level of productivity for the economy.

This is some level right over here. It s important to realize. This is just a snap shot in time and this is all else things equal so we re not assuming that we re having changes in productivity overtime. This is just a snap shot if we did have any of those things that change for example.

If the population increased then that would cause this level to shift to the right then we would have a higher natural level of productivity. If for whatever reason..


We were able to create tools so that it was easier to find people jobs. There s always a natural rate of unemployment. There s frictions people have to look for jobs. Some people have to retrain to get their skills.

But maybe we improve that in some way so that there s some website. Where people can find jobs easier or easier ways to train for jobs and the natural level of unemployment goes down more people can produce that would also shift this curve to the right you could have a reality. Where there s technological improvements that would also and then all of a sudden on an average people would become more productive that could shift things to the right you could have discovery of natural resources new land that is super fertile and everything else that could also shift things to the right you could have a war and maybe your factories get bombed or bad things happen in a war especially if the war is on your soil. And that could actually shift things to the left.

So it s important to realize that this is just taking a snap shot in time and a lot of these other things that we think about would just shift it in 1 direction or another. I m going to leave you there. And this is a kind of it might not seem intuitive at first because you re saying. Wait look if prices were to change dramatically.

If all of a sudden everything in the economy. Got twice as expensive that would have some impact on peoples minds..


And that they would behave differently. And all the rest and that might affect how much they can produce. We did think a little about that when we thought about aggregate demand. But when we think about aggregate supply.

We re just thinking about their capability to produce. We re saying all else equal. We re saying that peoples mind shifts aren t changing their willingness to work isn t changing nothing. Else is changing technology isn t changing given that price really is just a numeric thing if you just looked at the resources and the productive capability of a country the factors of production the people and all the rest regardless of what the prices are they in theory.

Should be able to produce the same level of goods and services. ” ..

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