Cupcake economics 2발음듣기
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In the last video we talked a little bit about, at least potentially, starting a cupcake factory.발음듣기
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But this is a major investment that I'm thinking about making, so at minimum, I made a spreadsheet here in Excel and it's available at khanacademy.org/ downloads/cupcakes.xls.발음듣기
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If you just click slash here, you'll see everything in the download directory, but I'm going to start putting more stuff there.발음듣기
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So I encourage you to play with it.발음듣기
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But this is essentially - it'll do all the math for us that we did in the last video, --the investment in the factory.발음듣기
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Let's say in the real world, once I actually got bids from contractors and things like that, it ends up costing $1.1 million.발음듣기
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The annual capacity is a million cupcakes per year.발음듣기
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The cost per cupcake is - let's say, I don't know, input costs went up for whatever reason.발음듣기
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Now that I have a computer doing the math for me, I can deal with a little bit funnier numbers.발음듣기
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So let's say it's $1.05.발음듣기
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The price charged per cupcake is $2.발음듣기
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Well, actually, it can be anything, right?발음듣기
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And so this is going to be an input field and right now it says $2.발음듣기
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Let's say this is what we assume is how many cupcakes we sell.발음듣기
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In this scenario, this is the income statement, at least as far as we get to the operating income line.발음듣기
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And so it calculates that you have $2 million of revenue.발음듣기
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Notice what happens when I change it.발음듣기
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If I sell my cupcakes for a $1.50 per cupcake, then I only have $1.5 million.발음듣기
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So it actually computes what we need it to compute.발음듣기
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It computes the cost of goods sold.발음듣기
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If I change the number of cupcakes, let's see, if instead of a million, I sell five 500,000, it calculates everything accordingly.발음듣기
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And in all these scenarios it tells me my operating income.발음듣기
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And if you go a little bit lower, it tells me capacity utilization.발음듣기
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That's just how many cupcakes I sold, divided by how many I could make.발음듣기
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So it's 50% utilization and then, my return on asset is my operating income divided by my initial investment, right?발음듣기
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So this is 275,000 divided by 1.1, it was a minus 25.발음듣기
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So this is actually a bad outcome.발음듣기
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So in the last one, I touched on a little bit that the real lever that I, as the owner of my cupcake factory, can change is price.발음듣기
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And then, obviously, if I charge a lower price more people are going to want to buy my cupcakes and if I charge a higher price, fewer people.발음듣기
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Although, there are some things that when you charge a higher price people think it must be better so maybe they want it, or they want to show off to their friends, and look at this expensive cupcake that I eat, and it's kind of a status symbol.발음듣기
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But for the most part the lower the price, the more you sell.발음듣기
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And now we can actually figure out under what combinations am I going to make certain amounts of money.발음듣기
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So if I charge $1.50 per cupcake and I'm only able to sell 500,000 cupcakes, I'm going to take a loss per year of $275,000.발음듣기
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If I sell them for $1.75 and if I sell, I don't know, 700,000 cupcakes, I'm almost at break-even.발음듣기
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So, let's see, you have to do $1.85.발음듣기
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Here in this situation, I actually make money.발음듣기
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I have a 5% return on asset.발음듣기
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And, just so you know, this is a major investment that I'm making, $1.1 million.발음듣기
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I actually want to make sure I understand all of the scenarios of price and sales.발음듣기
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So what I did is actually used Excel to do a sensitivity study.발음듣기
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So what I did here is I put all of the - let me just go to that part of the spreadsheet.발음듣기
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And I encourage you to play with this, because it's interesting.발음듣기
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It shows you that even in a fairly simple business, you can do a lot of analysis.발음듣기
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And, if you're in high school or in middle school, this could actually be a fun - I don't know if they allow this type of thing for science projects.발음듣기
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But go to a local business and kind of analyze the business in a hundred different ways.발음듣기
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And actually, if you watch the probability videos, I do all those things on [UNINTELLIGIBLE] processes and things like that.발음듣기
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You can analyze the business and do Excel spreadsheets and you'll probably end up winning soon. the state science fair.발음듣기
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Call it a math project or engineering project.발음듣기
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But anyway, here I want to figure, out what is my return on asset?발음듣기
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So essentially my operating profit divided by my initial investment, depending on the different prices I might charge and the different quantities.발음듣기
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And here it's kind of hard to visualize, so I graphed it as a three dimensional surface. 3D.발음듣기
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So as you see here, if I charge $2.80 and I only sell 300,000, then this is my return on asset right here.발음듣기
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This curve is actually the zero curve, right?발음듣기
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So this is actually my break-even right here.발음듣기
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So any point along this curve right here I'm at break-even.발음듣기
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So if I'm at $2.80 per cupcake and I only sell 300,000, I'm at break-even.발음듣기
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Let's see, what is this right here?발음듣기
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If I sell $1.60 per cupcake and if I sell 900,000, then I'm also at break-even.발음듣기
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So this is my break-even curve.발음듣기
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This is what I want to avoid.발음듣기
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Everything here is in the negative, right, according to the legend, minus 50% to zero percent return.발음듣기
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So here I'm losing money and I would color it in if I wasn't in Excel mode.발음듣기
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If I charge $1.60 per cupcake and I only sell 400,000 cupcakes, I'm going to have a negative return.발음듣기
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And we can figure it out in that little worksheet I just did.발음듣기
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But anyway this is fun to look at and I encourage you to play with it.발음듣기
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And it actually shows you that it's a fairly interesting and sophisticated thing, that you have these two variables that change.발음듣기
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And this is about as simple as a business can get.발음듣기
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You can only imagine what happens when you start varying the other parameters, but these are the two big ones.발음듣기
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So let's say, when I come out the gate, I want everyone in town to taste my cupcakes.발음듣기
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Because I think, once they taste it, they'll realize that they're delicious.발음듣기
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And by the way, I've also learned from the cigarette companies and I put nicotine in my cupcake, so I think people will become addicted to it.발음듣기
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So what I do is, I want to charge a relatively low price for it.발음듣기
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Let's say I do come out the gate at, I don't know, $1.75.발음듣기
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And that's a very cheap price for cupcakes.발음듣기
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There's actually no cupcake producers in this town right now.발음듣기
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So I just sell out one, two, three.발음듣기
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I just sell out of cupcakes.발음듣기
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And so I'm making $200,000 per year, that's an 18% return on asset.발음듣기
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And a lot of people would be happy with that, but I'm like, hey, I'm leaving money on the table because I'm selling out of my cupcakes.발음듣기
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So what happens if I raise my price a little bit?발음듣기
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I'm fully utilized, right?발음듣기
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I have 100% utilization.발음듣기
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So it makes sense for me to see if there's any - maybe there's some people who want cupcakes, who can't get them because I can't produce that many.발음듣기
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So let me raise my price a little bit.발음듣기
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Let me say I raise it to $1.85.발음듣기
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At $1.85 it still turns out that I'm selling a million cupcakes in a year.발음듣기
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Now, I was right.발음듣기
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I was leaving money on the table.발음듣기
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Now I'm making $300,000 a year.발음듣기
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This seems like a good idea.발음듣기
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I want to see how much people are willing to pay.발음듣기
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So, let's say, I raise the price to $2.발음듣기
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But, in that scenario, $2, it starts to get a little pricey for people.발음듣기
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It's just kind of a little sticker shock.발음듣기
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Maybe I should have done $1.99.발음듣기
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And so I don't sell a million.발음듣기
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There's maybe 50,000 thousand people in the margin who said, hey, you know, I'd buy it at $1.85 but I'm not willing to buy it at $2.발음듣기
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But this still works out, right?발음듣기
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I'm still making more money.발음듣기
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Even though I'm selling fewer cupcakes, because I'm charging so much more per cupcake, and I'm making a 37% return.발음듣기
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Let's say I keep figuring this out.발음듣기
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And let's say I figured out the optimal point is me charging $3 per cupcake.발음듣기
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And at $3 per cupcake, I'm able to sell you 750,000 cupcakes.발음듣기
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And I make $962,000 a year and I have a huge return on asset, 88%.발음듣기
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Imagine a business or some investment where you get 88% of your money every year.발음듣기
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So that's all good and I'm driving a Bentley and I have the biggest house on a hill in town and all of that.발음듣기
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But other people say, hey, all Sal's doing is making cupcakes.발음듣기
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I can make cupcakes too and I have some money to build a factory.발음듣기
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This is a better return on investment than the stock market or anything else that I know of.발음듣기
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So I'm also going to get into the cupcake factory business.발음듣기
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And so, here, this is the second worksheet in this spreadsheet.발음듣기
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So let's say, I was at $1.3 million.발음듣기
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I don't know if you can see this.발음듣기
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Maybe I should zoom in a little bit.발음듣기
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So this is the same thing.발음듣기
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So I said $3 and, 750,000 cupcakes and my cost was a $1.05.발음듣기
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So I was making $962,000.발음듣기
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But then Imran - and just if you're curious why I wasn't recording videos for the last two weeks, actually Imran is the name of my son and he came into the world two weeks ago, and so, I think it makes sense to name a cupcake store after him.발음듣기
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But let's say he comes in, and he's like, I'm tired of getting an allowance from dad; I also want to produce cupcakes.발음듣기
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And he actually has more money because his grandma gave him more money because she likes him more than her son.발음듣기
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And so he has $1.5 million to invest because he's like, wow, this is such a good investment, let me put more money into it. $1.5 million.발음듣기
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He builds a factory that can produce two million cupcakes a year.발음듣기
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And also, it's a more efficient factory, so it actually uses a little less electricity, and wastes less cream and frosting, and, I guess, nicotine as well.발음듣기
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So the cost per cupcake is less.발음듣기
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And he decides to undercut his father, so he charges $2.90 per cupcake.발음듣기
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And when he charges $2.90 per - everyone just kind of runs to him, because his cupcakes are just as good.발음듣기
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There really wasn't much of a barrier.발음듣기
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So, let's say, he sells 500,000 cupcakes.발음듣기
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Then I'm only selling 250,000 at $3.발음듣기
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There's just some people who like my cupcakes.발음듣기
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So I'm pretty much almost break-even and I say, well, these are my die-hard fans.발음듣기
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And so, to benefit them - these guys aren't going to go anywhere else --I'm going to raise my prices a little bit.발음듣기
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Just because I know that these guys like me.발음듣기
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At least in that situation, I'm cutting a profit.발음듣기
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But then I say, well, you know, this isn't a good state of affairs.발음듣기
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He took all my business.발음듣기
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I actually want you to notice something right here, what happened immediately.발음듣기
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I was making an 88% percent return on my money, right?발음듣기
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And just when this Imran comes in, and he enters into the space, all of a sudden, what is the return?발음듣기
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He's only running at 25% utilization.발음듣기
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But his return on asset has gone down to 20 - and, because he's at that utilization, his return on asset has gone down to 20%.발음듣기
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And then my return on asset has gone down to 1%.발음듣기
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So there's a general theme here.발음듣기
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When someone is doing really well and getting a really great return, it attracts competition.발음듣기
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It attracts capacity, right?발음듣기
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And if there's enough demand to satiate that new capacity, maybe they will get a better return.발음듣기
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But in general, over time, if there's a very favorable return, more and more competition will enter the market.발음듣기
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Actually I've run out of time in the studio.발음듣기
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In the next video, I'll talk about more scenarios with competition.발음듣기
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