r greater than g but less inequality발음듣기
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r greater than g but less inequality
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One of the core ideas of Thomas Pickety's book is if the return on capital is greater than the growth in economy, then that could drive inequality.발음듣기
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That could drive inequality, and inequality is a natural byproduct of a market capitalistic economy and one could argue that hey look, some inequality is going to happen as you grow your economy and you let people be entrepreneurial and some people get lucky, some people less lucky, some people work harder, some people work less hard, some people are able to allocate capital well, some people aren't, so it all comes into it, but in extreme forms maybe this is bad.발음듣기
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Maybe too much power starts to accrue in some ways and in the worst case, because that kind of starts to drive in on itself, it actually might even hurt economic growth if you don't have enough consumers or people with enough purchasing power or discretionary income or whatever else.발음듣기
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But what I really want to focus on here is not so much whether these causalities are actually there or how much we should worry about them, once again, my point isn't to give an opinion on whether I agree or disagree with some or all of the book, it's really just to give you a framework.발음듣기
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Because I think the book at least raises an interesting conversation and it gives us a lot of, I would say, fodder for interesting analysis and critical thinking and that's really what I want you to walk away with.발음듣기
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So what I want to do here is at least show a circumstance that this might be returns on capital being greater than economic growth, can be a reasonable proxy for rising inequality and of course this connection over here is kind of a harder thing to necessarily draw the connection.발음듣기
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And to think about that, let's just imagine an economy where the whole economy just produces apples.발음듣기
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So let's say in year one, so this is year one right over here, year one, it produced 1000 applies, 1000 apples.발음듣기
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And let's say in year two, year two, we have economic growth, so let me draw that, So G, going from year one to year two, let's say that this is equal to 2%.발음듣기
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Right over there. Now let's say that in year one, of the thousand apples that were produced, let's say that 500 of them, I'll just split it in half, let's say 500 of them go to the owners of capital, 500 to the owners of capital.발음듣기
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What do they own, it's a very simple economy that only has one industry right over here, but the owners of capital are the people who would own the orchard, who own the trees, who own the machinery, whatever they need to pick the apples.발음듣기
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And let's say that the value of the capital here, so the value of capital in apples, we're just assuming everything going on here is apples.발음듣기
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I guess to buy this apple orchard, the owner of it had to give let's say 4000 apples, 4000 apples.발음듣기
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Well the return on capital, I'll just write return on capital, capital in year one is going to be, well the return is 500 apples, 500 apples, divided by the cost, or I guess you could say the value of the capital, so divided by 4000 apples, so that's going to give us 5 divided by 40, which is one-eighth, so that's going to be 12.5%.발음듣기
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So we can look at the return on capital in year two and compare it to the growth right over here.발음듣기
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And so let's just say that the value of the capital, that all of it was reinvested, so now the value of the capital, value of capital, is now 4000 plus 500 more apples, so 4500 apples.발음듣기
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And they didn't necessarily use the apples as capital, but they used those extra 500 apples to go buy some more machinery or buy some more land whatever it might be.발음듣기
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520 to labor. So now with the return on capital, the return on capital now is going to be still 500 apples, 500 apples, divided by, divided by 4500.발음듣기
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4500 apples, which is going to be, this is now going to be equal to one-ninth which is the same thing as, what is that, .99, so let's see, actually .1111, let me just, one divided by nine, yes it's .1111, so it's going to be approximately 11%.발음듣기
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Now the whole reason why I wanted to show that, why I did this diagram, is that this is a situation where R is greater than G.발음듣기
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Our return on capital is 12.5%, going to 11.1%, both of these numbers are much larger than our growth of the entire economy, but even though that's happening, you actually don't have rising inequality over here.발음듣기
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I could've worked them the other way, but in this situation, it's not necessarily the case that R being greater than G led to more inequality.발음듣기
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Now in future videos I'll do some spreadsheets where you see if R stays constant, at a constant value higher than G that will lead to inequality, but the whole reason why I did this one, is that just in a given period of time R being greater than G doesn't necessarily mean more inequality.발음듣기
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And once again, the connection between capital and labor and income inequality is that in general the income that goes to labor is more indicative of the income that might go to the lower quartiles of a population and the income that goes to capital is more indicative of the income that might go to the top percentile or decile because capital tends to be concentrated in the top few sections.발음듣기
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