1. Assignment
ON
Cost of capital under CAPM
Submitted towards the partial fulfillment of the requirement for the
degree of Master of Business Administration
MBA Batch 2012-2014
Submitted To: Submitted By:
Dr. Liaqat Ali Amardeep Kaur
M.B.A-2nd
, SEC-F
Roll No. 120425712
SCHOOL OF MANAGEMENT STUDIES
PUNJABI UNIVERSITY PATIALA

2. CAPM method
The CAPM Capital Asset Pricing Model is a mathematical model intended to provide insight
into how capital assets are priced in the market. The basic assumptions of this model give us
insight into how it works. Investors are looking to generate a return on their funds by choosing
assets to invest in with an expected rate of return. When investing these funds, investors put
their capital at risk. When deciding which asset to invest in, investors will look to compare the
expected rates of return with the expected levels of risk. This means that all else being equal,
investors will choose the asset that has the highest expected rate of return, and the asset that
exposes them to the lowest level of risk possible.
The “market” is composed of all possible stocks, and is an aggregate of their returns and risk
levels. When talking of risk in capital assets, we are really talking about their
volatility. Volatility refers to the fluctuation in value of the asset, how much the price increases
or decreases. A high degree of volatility means that a particular asset (stock) will increase and
decrease in price to a higher degree than another asset with less volatility.
The CAPM Capital Asset Pricing Model assumes that the volatility of any one asset can be
related to the volatility of the market as a whole. The relationship between the price of any one
asset and the value of the market is known as Beta. An asset with a high Beta will increase in
price more than the market when the market increases, and decrease more than the market when
the market decreases. A Beta with a value of 1 is expected to move to the same degree as the
market, a Beta with a value lower than 1 will move to a lesser degree than the market, and a Beta
of greater than 1 will move to a higher degree than the market when the market moves. It is even
possible to have a negative Beta. A negative Beta means that the price of the asset tends to
decrease when the value of the market increases. As with the positive Beta, the greater the value
of the negative Beta will indicate the degree to which the asset fluctuates inversely to the market.
The CAPM Capital Asset Pricing Model assumes that investors will never accept higher levels of
risk (volatility) unless they are to be compensated with a higher expected rate of return. This
follows form the basic assumption that the value of the market in the long run will increase. An
asset with a Beta greater than one will expose the investor to higher levels of volatility, but will
also reward the investor as the value of the asset will grow at a higher rate than the market.The
CAPM Capital Asset Pricing Model also assumes that investors can always invest in a risk free
asset, which will offer them the minimum possible rate of return for any investment. In the real
world, this tends to be based on the rate offered by federal government short term treasury bills,
as these are considered to be the closest possible to risk free investments.
Since an investor will always want to expose themselves to the minimum level of risk, they must
receive a premium rate of return relative to the amount of risk they are exposed to in any one
asset. This risk premium, which is over and above the risk free rate of return, is the required rate
of return that an asset must generate in order for anyone to invest in it. If the asset does not
produce the required rate of return, then the price is too high relative to the risk exposure.
The CAPM Capital Asset Pricing Model concludes that this is the primary determinant of asset
prices in the market. Other models follow this theory, such as the Gordon Model (Constant

3. Dividend Growth), which assumes that price can be determined by the rate of return received by
an investor.
What is the Risk Free Rate of Return?
The risk free rate of return in the CAPM Capital Asset Pricing Model refers to the rate of return
an investor can receive without exposing their funds to any risk. Typically based on the rate paid
on short term federal treasury bills, this interest rate forms the basis for the required rate of return
on all assets.
No matter what the capital asset, the risk free rate of return will be included in the required rate
of return. Any return over the risk free rate will be due to the risk premium required by investors
to accept the higher level of risk in their portfolio.
What is the Risk Premium?
The risk premium is an important component of the CAPM Capital Asset Pricing Model. The
primary determinant of the required rate of return is the risk premium. Investors have a large
selection of capital assets to invest in, which in aggregate compose the market. If an investor
invested in the entire market, then their required rate of return would be the rate of return that the
entire market returns to investors. The difference between this rate of return and the risk free
rate would be the risk premium.
Since the volatility each asset can be compared against the volatility of the market, then it
follows that their risk premium would adjust by the same degree. Since the total required rate of
return is the sum of both the risk free rate and the risk premium, variation in the total required
rate of return will be greater for high risk assets compared to low risk assets.
What is the Required Rate of Return?
The required rate of return is simply the sum of both the risk free rate and the risk
premium. Each asset in the market will have a required rate of return, which can be used to
determine the price of the asset. Required rate of return is always relative to the market rate of
return, since it varies according to the volatility of each asset in the market.

4. What is Beta?
Beta is an important concept to the CAPM Capital Asset Pricing Model, since it determines the
risk premium of any one asset relative to the risk of the market as a whole. Beta is a direct
correlation of volatility between the market as a whole and any one asset. Is an asset increases at
a rate of 200% of the market increase, then the Beta of that asset would be 2. A simple concept
that shows the importance that investors place on risk, and the premium that they require in
order to be willing to accept it.

5. To calculate the Cost of Equity under CAPM method, the formula is:
Formula:
1 .Cost of equity of Honda Cars India Ltd.
Average market return= 11.35%
Risk free rate of return= 3%
Beta= .21
= + β( - )
= 3% + .21( 11.35 – 3 )
= 4.75%
2. Cost of equity of Steel Authority of India ltd
Average market return= 9.17
Risk free rate of return= 5%
Beta= -.1049
= + β( - )
= 5% + (-.1049) ( 9.17 – 5 )
= 4.56%
3. Cost of equity of Axis bank
Average market return= 18.57%

6. Risk free rate of return= 4.8%
Beta= -0.005
= + β( - )
= 4.8 +( -.005) ( 18.57 - 4.8 )
= 4.73%
4. Cost of equity of pepsico india ltd.
Average market return= 7%
Risk free rate of return= 2.74%
Beta= 0.37
= + β( - )
= 2.74 + .37 ( 7-2.74 )
= 4.3162%
This is all about the computation of cost of equity under CAPM .