Introduction to the yield curve

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Introduction to the yield curve발음듣기

Welcome back.발음듣기

Before we proceed further and get a little bit better understanding of why maybe some of these investors were so keen on investing in mortgage backed securities, essentially loaning this money to all these people who are buying these ever appreciating houses, I think we need to a few more tools in our tool belt.발음듣기

So I'm going to introduce you to the concept of the yield curve.발음듣기

You might have heard this before.발음듣기

You might have heard people on CNBC talk about it.발음듣기

And hopefully, after about the next five or ten minutes, you will know a lot about the yield curve.발음듣기

So when most people talk about the yield curve, they're talking about the treasury yield curve.발음듣기

And what does that mean?발음듣기

What is even a treasury?발음듣기

So these treasury securities, whether they're T-Bills, treasury bills, treasury notes, or treasury bonds.발음듣기

These are loans to the federal government.발음듣기

And these are considered risk-free.발음듣기

Because if you lend to the federal government and they're running short of cash, all they have to do is increase taxes on us the people and they can pay back your debt.발음듣기

So in dollar denominated terms, the treasury bills, notes, and bonds are about as safe as you can get in terms of lending your money to anyone.발음듣기

So when most people talk about the yield curve, they're talking about the risk-free yield curve.발음듣기

And they're talking about the curve for treasuries.발음듣기

So first, a little bit of definitions.발음듣기

What is the difference between treasury bills, treasury notes, and treasury bonds?발음듣기

They're pretty much all loans to the government.발음듣기

But they're loans for different amounts of time.발음듣기

So if I give a loan to the government for $1,000 for six months, that will be a treasury bill.발음듣기

So I will give the government $1,000, the government would give me a treasury bill.발음듣기

And that treasury bill from the government is essentially just an IOU saying that I'm going to give you your money back in six months with interest. Similarly, if it's three months, it's a three month treasury bill.발음듣기

Treasury notes are loans that are from one year to 10 years.발음듣기

So on this graph that we're going to make using the actual yield curve rates, from zero to one year - and actually there's no zero year treasury bill.발음듣기

Actually, the shortest one is one month.발음듣기

This would be something like here on our graph.발음듣기

So from one month to one year, these are T-bills.발음듣기

And this is just definitional.발음듣기

Then from one year to 10 year, these are notes.발음듣기

Actually, I believe the one year itself is a note.발음듣기

Up to one year is a bill.발음듣기

Although, I might be wrong with that.발음듣기

Correct me if I'm wrong.발음듣기

That's just a definitional thing.발음듣기

From one to 10 year, these are called notes.발음듣기

And then when you go beyond 10 years, these are called treasury bonds.발음듣기

These are just definitional things to worry about.발음듣기

So with that out of the way, let's talk about what the yield curve is.발음듣기

I'll just give you a simple thought experiment.발음듣기

If I'm lending money to someone for a month versus lending money to that person for a year, in which situation am I probably taking on more risk?발음듣기

Well, sure, if I'm lending someone for a month, I know only so much can happen in that month.발음듣기

So I would expect to be paid less interest.발음듣기

Not just obviously in dollar terms, but even adjusted for time, I would expect less interest for that month.발음듣기

And this is actually an important point to make.발음듣기

When I say that I'm charging 6% interest for that month, that doesn't mean that after a month the person is going to pay me 6% on my money.발음듣기

It means that if I were to give that money to somebody for a month, and they were to pay it back.발음듣기

And then I were to give that money to, say, that same person, or another person, for a month, and I were to keep doing that for a year, then in aggregate I would get 6%.발음듣기

So that 6%, no matter what duration we talk about, whether one month, one year, five years, 15 years, when we talk about the interest rate, that's the rate that on average we would get for a year.발음듣기

It's the annualized interest rate.발음듣기

So going back to my question.발음듣기

If lend someone money, even the government, for a month, there's usually less risk in that.발음듣기

Because only so much could happen in a month versus in a year.발음듣기

In a year there might be more inflation, the dollar might collapse, I might be passing on better investments, I might need the cash in a year's time, while I have a lot of confidence that I don't need the cash in a month's time.발음듣기

So in general, you expect less interest when you loan money for a shorter period time than a longer period of time.발음듣기

And so let's draw the yield curve and see if this holds true.발음듣기

So I actually went to the treasury website, so that's treas.gov.발음듣기

And this is the yield curve.발음듣기

So they say on March 14, so this is the most recent number.발음듣기

And I'm going to plot this.발음듣기

They say, if you lend money to the government for one month, you'll get 1.2% on that money.발음듣기

And remember, if it's $1,000 it's not like I'm going to get 1.2% on that $1,000 just after a month.발음듣기

If I kept doing it for a year, this is an annualized number, I'll get 1.2%.발음듣기

And so for three months, I get a little bit less.발음듣기

And then for six months I get more.발음듣기

And then it does seem that the overall trend is that I expect more and more money as I lend money to the government for larger and larger periods of time.발음듣기

And this is a little interesting anomaly that you get a little bit more interest for one month than three months.발음듣기

And we'll do a more advanced presentation later as to why you might get lower yields for longer duration investments.발음듣기

That's called an inverted yield curve.발음듣기

So let's just plot this and see what it looks like.발음듣기

So you saw where I got my data.발음듣기

So they say for one month I'd get 1.2%.발음듣기

So this is one month.발음듣기

It'd be right about here.발음듣기

Three months I get about the same thing.발음듣기

For six months I get 1.32%.발음듣기

Maybe that's like here.발음듣기

One year, I get one 1.37%.발음듣기

Maybe it's here.발음듣기

Five years, I get 2.37%.발음듣기

So that's maybe like here.발음듣기

And these aren't all of the durations.발음듣기

I'm just for simplicity not going to do all of them.발음듣기

For 10 years, 3.44%.발음듣기

So maybe that's here.발음듣기

For 20 years, I get 4.3%.발음듣기

Like that.발음듣기

And then for 30 years, I get 4.35%.발음듣기

So the current yield curve looks something like this.발음듣기

And so you now hopefully at least understand what the yield curve is.발음듣기

All it is, is using a simple graph.발음듣기

Someone can look at that graph and say, well, in general what type of rates am I getting for lending to the government?발음듣기

On a risk-free free basis, or as risk-free as anything we can expect, what type of rates am I getting when I lend to the government for different periods of time?발음듣기

And that's what the yield curve tells us.발음듣기

And in general, it's upwardly sloping.발음듣기

Because, as I said, when you lend money for a longer period of time, you're kind of taking on more risk.발음듣기

There's a lot more that you feel that could happen.발음듣기

You might need that cash.발음듣기

There might be inflation.발음듣기

The dollar might devalue.발음듣기

There's a lot of things that could happen.발음듣기

So the next question is, well, what determines this yield curve?발음듣기

Well, when the treasury, the government, needs to borrow money, what it does is say, hey everyone we need to borrow a billion dollars from you, because we can't control are spending.발음듣기

And they say we're going to borrow a billion dollars in one month notes.발음듣기

So this is one month notes.발음듣기

They're going to borrow a billion dollars.발음듣기

And they have an auction.발음듣기

And the world, investors from everywhere, they go in, they say, well, this is a safe place to put my cash for a month.발음듣기

And depending on the demand, that determines the rate.발음듣기

So if there are a lot of people who want to buy those one month treasuries, the rate might be a little bit lower.발음듣기

Does that make sense to you?발음듣기

Think about it.발음듣기

If a lot of people want to buy it, there's a lot of demand relative to the supply.발음듣기

So the government has to pay a lower interest rate on it.발음듣기

Similarly, if for whatever reason people don't want to keep their money in the dollar, they think the U.S. might default on their debt one day, and not that many people want to invest in the treasury, then that auction,발음듣기

the government is going to have to pay a higher interest rate to people for them to loan money to it.발음듣기

So maybe then the auction ends up here.발음듣기

And similarly, the government does auctions for all of the different durations.발음듣기

And duration, I just mean the time period you're getting the loan for.발음듣기

So they do it for one month, three months, six months, one year, two year, three year, et cetera.발음듣기

Once the government has done that auction - You give the money to the government, they give you an IOU called a T-bill.발음듣기

Then you could trade it with other people.발음듣기

And that's going to determine the rate in the short term.발음듣기

So the government does the auction.발음듣기

But then after the auction, and a lot of people had demand, but then a lot of people get freaked out.발음듣기

And the public markets, when you try to sell that treasury, will then expect. a higher yield.발음듣기

I know that might be a little complicated now.발음듣기

And I always start to jumble things when I run out of time.발음듣기

But hopefully at this point you have a sense of what the yield curve is.발음듣기

You have a sense of what treasury bills, treasury notes, and treasury bonds are.발음듣기

And you have some intuition on why the yield curve has this shape.발음듣기

See you in the next video.발음듣기

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