This course provides a brief introduction to the fundamentals of finance, emphasizing their application to a wide variety of real-world situations spanning personal finance, corporate decision-making, and financial intermediation. Key concepts and applications include: time value of money, risk-return tradeoff, cost of capital, interest rates, retirement savings, mortgage financing, auto leasing, capital budgeting, asset valuation, discounted cash flow (DCF) analysis, net present value, internal rate of return, hurdle rate, payback period.
Term Structure
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Compétences que vous apprendrez
Discounted Cash Flow, Decision-Making, Corporate Finance, Cash Flow Analysis
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AJ
Dec 11, 2015
Very nicely explains about the corporate finance terms...The way Prof. Roberts explains makes it so simple to understand!! I feel very satisfied to have taken this course!! All the best!!
LT
Aug 22, 2017
This was probably the best-structured class I have taken on Coursera. The Professor is very good at explaining the material in a detailed way, using the short amount of time he is given.
À partir de la leçon
Week 2: Interest Rates
In this module, we wrap up the Time Value of Money topic with a discussion of inflation before moving on to our second topic, Interest Rates, and introducing our third topic, Discounted Cash Flow Analysis. By the end of this module, you should feel comfortable with discounting and compounding arbitrary cash flow streams in order to value different claims and make better financial decisions.
Enseigné par
Michael R Roberts
William H. Lawrence Professor of Finance, the Wharton School, University of Pennsylvania
Welcome back to Corporate Finance.
Last time we talked about interest rates.
In particular, we talked about how interest rates are quoted
versus how interest rates are used to discount cash flows.
We also talked about how to deal with cash flow streams when the cash flows arrived
more than once a year or less frequently than once a year, and
when the compounding frequency wasn't annual.
This time I want to talk about how interest rates or
discount rates, can vary over time and how that relationship is captured
via term structure of interest rates and yield curve.
Let's get started.
Hi, everybody. Welcome back to Corporate Finance and
our 2nd lecture on interest rates.
So last time we introduced the topic by talking about interest rate quotes versus
discount rates, and we talked about APR, annual percentage rate which was
means of quoting interest rates, the financial institutions often use.
That's often distinct from what we care about for discounting cash flows,
which is, an EAR, effective annual rate, or a periodic discount rate.
And we talked about how to move between these concepts, or these constructs,
and then we showed how to apply them to non-annual cash flows and
in situations where we have non-annual compounding.
Say monthly, semi-annual, whatever you might have.
Today I want to talk about the term structure of interest rates and
the yield curve.
And this lecture's a little bit different in that it's not geared toward solving
problems per se.
At least not directly, because that's going to take
us into a fixed income valuation which is beyond the scope of this course.
Rather what it's going to do is,
it's going to be important to understand what these concepts are,
because they're going to be used for corporate decision-making later on.
So let's get started.
Thus far, we've assumed discount rates are constant through time.
They just don't change.
And what do I mean by that?
Well, if I look at my present value formula right, I take my cash flows and
I discount them by one plus the discount rate.
But notice that's the same discount rate.
It's the same number for every cash flow regardless of when the cash flow arrives.
Now, in reality, it seems as if
Interest rates vary with the term of the investment.
Let me give you some examples.
Here's a screenshot of home mortgage refinancing rates that I took not too long
ago, and you can see that as the term
of the mortgage refinancing varies, so too does the rate or APR,
and consequently, so does the EAR, the discount rate.
Likewise, when I looked at fixed term CD rates where,
remember, CD's are just certificates of deposits.
Their rates tend to very with the term of the investment as well, and
there's a lot of numbers here, so let me focus your attention here,
here we have the term of the investment.
And here we have the APR.
And the EAR.
And you can see that as the term increases or
changes, so to do the interest rate.
Now, what's the point here?
Well, as the term of the investment changes, quite often, but not always,
quite often, the interest rate will change.
And the term structure is nothing more than the relation between
the investment term and the interest rate.
The yield curve is just a graph of that relation,
so let me show you a treasury yield curve from July 24, 2014.
On the horizontal axis we have the maturity of
the treasury security, so here's a one month T-bill.
Right here's a 30 year T-bond.
Here's a five year T-Note.
So these are just different treasury securities that vary by maturity
across the horizontal access.
And on the Y access is the yield, which for the time being and
in this context you can think of loosely as the discount rate, R.
And the point is, is that as the maturity of the security varies,
so to does the discount rate, right?
In other words when the government borrows for 30 years, its getting.
Or paying an interest rate just above three percent.
Where as when its borrowing over a short horizon say thirty days.
Its paying basically zero.
Now, let me come back to this notion of a yield, and what a yield is.
A yield, y, is the one discount rate that when applied to the promised cash
flows of the security recover the price of the security, and that is a mouthful.
So, let me actually show you a little formula that
you're familiar with to hopefully clarify this.
See, I take the price of the security.
On the last slide the price of the T-bill, the price of the T-bond.
And I lay out all of the promised cash flows to the security.
I discount them back and I ask what is the discount rate
such that when I discount these cash flows, I get the price?
That is the yield, or yield to maturity.
So to build the yield curve, that's just a matter of simply computing the yield for
securities of different maturities.
So without getting into the institutional details and the semiannual compounding and
quoting conventions associated with treasuries, let me just talk conceptually,
so if I want the one year, the one year yield,
I would just take this say cash flow at year one,
divide by one plus y1, set it equal to the current price and solve for y.
If I want the second yield, I would take the second
security with maybe annual cash flows of one and CF1 and CF2,
and I would solve for the one discount rate, y2 let's call it,
such that when I discount these cash flows, CF1 and CF2, I get the price, P2.
And we do that for all different maturities.
The Y's that come out, Y1, Y2, Y3...
Dot, dot, dot, dot all the way down to YT.
That represents the yield curve.
Those are the points on the yield curve.
But that's the same as computing the discount rate for
securities with different maturities.
Hence the length between discount rates and yields.
Now they're is a difference between discount rates and
yields having to do with promised versus expected cash flows.
But that's a little bit outside the scope of the course,
so let's leave that aside for now.
And in the context of treasuries yields and expected returns are relatively close.
Now one thing I want to emphasize is that yield curves, in another words,
interest rates they move around a lot.
Or at least they can.
So to illustrate that fact I've plotted three yield curves here,
the purple one is from 2012.
The blue one is from 2000, and the red one is from 1981.
And you can see that the rate at which the government was
borrowing has very dramatically, over time.
Right. Today For
short-term loans, they're not paying any interest.
The interest rate is basically zero.
But back in 1981, the interest rate was around 15%.
The other thing I want to point out is that the relationship
between the short end of the yield curve, short term interest rate, and the long
end of the yield curve, long term interest rates, that can vary over time as well.
Here, at least in 2012,
we see that the curve is upward sloping, so that interest rates,
short term loans to the government, are less costly than long term loans.
Whereas back in 1981, we see that long term interest
rates were actually below shorter term interest rates,
at least over a stretch here.
So it was cheaper for the government to borrow with longer rates, or
over longer terms at least, at a lower interest rate.
Now, this raises the question, well what does this mean?
What does the upward sloping curve
in 2012 mean as opposed to the downward sloping curve in 1981?
Well, there's a lot of academic debate about that, but one popular opinion is
that the slope reflects expectations of future interest rates.
So when the yields curve is upward sloping, as it is in 2012, this
suggests that future interest rates are likely to be higher.
Whereas back in 1981, this downward sloping portion,
also actually in 2000 it looks slightly downward sloping as well.
The downward sloping curve suggests that future interest rates are going to
be lower.
Treasury yield curves, what they're doing is they're graphing the relationship
between interest rates on, on risk-free loans and loan maturity.
So they, they have a very special meaning.
When we talk about the risk-free rate, we're really talking about.
The interest rate, or the yield on treasuries.
But we can plot yield curves for a host of different securities, and
that's what I've done on this next slide, is I've got three different yield curves.
The blue curve is the yield curve for high quality corporate debt, all right?
So you can see that for, what do I mean by high quality?
That's investment grade, think triple B or higher, okay?
So when high quality or highly credit rated firms were borrowing for say,
29 years, it's costing them about 5% per annum at least as of July 2014.
Whereas when they're borrowing short terms,
say two years, it's a little over a percent.
The green curve is the yield curve for
municipal bonds, AAA rated municipal bonds as of July 2014.
And then the red curve is the treasury curve.
And what's sort of interesting to note Is that the yields or
the cost of borrowing appears to be higher for the federal government
over at least certain periods, than it was for municipalities.
Which is strange if you think that our federal government is a much safer
bet than a municipality, even a triple A rated municipality, but what's going on
there is mostly a tax differential as well as some liquidity issues.
All right, so what's the lesson here?
Well, look.
Yields vary by maturity and risk.
So to illustrate that point, I'm going to look at the yields on corporate bonds.
And you can see as the credit rating improves from triple B to triple A,
which is the best rating, the yield goes down and
I know drawing the up arrow isn't helping, but the numbers are getting smaller.
And they're getting smaller within each maturity bucket.
One to two, two to five, five to ten, ten plus.
And that's the result of decreasing credit risk.
These are safer bond, these are safe.
These are less safe, but still relatively safe.
The other thing to notice is that within a credit rating, say AAA,
the yields, or the interest rates, are different.
Now, in this case, they're increasing, but as we showed a few slides ago right,
they don't always have to be increasing with maturity.
They could be decreasing.
The point is that they're different across the maturity spectrum.
Now all of these interest rates that we've discussed thus far are referred to as
spot rates.
And what are spot rates?
They're the interest rate for a loan that's made today.
Now typically there's a different spot rate for loans of different maturities and
different risks.
That's what we showed right here, these are spot rates.
They vary by credit risk, and they vary by maturity.
Now, what's one of the big punch lines or takeaways from all of this, aside from
just general knowledge and information and understanding interest rates?
Well,this present value formula that we've been working with is in
many ways just an approximation, because we know interest rates vary over time.
So it's really an approximation for this.
Now it's not such a bad approximation when the yield curve is flat.
So when we have a yield curve, here is maturity.
Here's yield.
When the yield curve is flat R1, R2, R3 are the same.
So these two things would be equal.
The problem, let's see if I can erase some stuff here.
The problem is when the yield curve is say, upwards sloping severely or
even downwards sloping.
Now there's going to be a pretty big difference from using some sort of average
discount rate R as a proxy for all of the different spot rates.
Okay.
So let's wrap up here.
What did we talk about today?
We talked about the term structure of interest rates which
captures the relation between interest rates and the investment term.
Right loans or savings of different maturities different terms
will often have different interest rates.
And that relation is captured by the term structure.
The yield curve simply graphs the term structure, right?
It plots on the horizontal axis the maturity,
on the vertical axis the yield or the interest rate.
And that shows us the relationship between investment term and interest rate.
We also learned that interest rates will vary by the risk of the investment.
We discussed that earlier on, back in I think our first lecture.
And we talked about spot rates, which are the interest rates for
a loan that's made today.
So.
What's up next?
We turn to a new topic: discounted cash flow.
I look forward to seeing you then.
Thanks a lot.
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