ECN 204 Chapter Notes - Chapter 15: Weighted Arithmetic Mean, Risk Premium, Time Preference

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ECN – Chapter 15 B – Financial Economics
Economic investment – either paying for new additions to the capital stock or new
replacements for capital stock that has worn out
Financial investment – either buying an asset or building an asset in the expectation of financial
gain
The time value of money is the idea that a specific amount of money is more valuable to a
person the sooner it is received, and a person will need to be compensated for waiting to
obtain it later
Compound interest – how quickly an investment increases in value when interest is paid, or
compounded, not only on the original amount invested but also on all interest payments that
have previously been made
X dollars today = X(1+i)^n n - years
Present value model
X dollars in n years = x/(1+i)^n
All investments share three features:
They require that investors pay some price – determined in the market – to acquire
them
They give their owners the chance to receive future payments
The future payments are typically risky
Stocks – are ownership shares in a corporation
Limited liability rule – limits the risks involved in investing in corporations and
encourages investors to invest in stocks by capping their potential losses at the amount that
they paid for their shares
When firms are profitable investors look forward to gaining financially in two ways:
Capital gains – they sell their shares in the corporation for more money than they paid
Receiving Dividends – equal shares of the corporation’s profits
Bonds – are debt contracts that are issued most frequently by governments and corporations
The key difference between bonds and stocks is that bonds are much more predictable
Mutual fund – a company that maintains a professionally managed portfolio – collection of
either stocks or bonds
The portfolio is purchased by pooling the money of many investors
Index funds – whose portfolios are selected to exactly match a stock or bond index. Indexes
follow the performance of a particular group of stocks or bonds to gauge how well a particular
category of investment is doing
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Document Summary

Ecn chapter 15 b financial economics. Economic investment either paying for new additions to the capital stock or new replacements for capital stock that has worn out. Financial investment either buying an asset or building an asset in the expectation of financial gain. The time value of money is the idea that a specific amount of money is more valuable to a person the sooner it is received, and a person will need to be compensated for waiting to obtain it later. Compound interest how quickly an investment increases in value when interest is paid, or compounded, not only on the original amount invested but also on all interest payments that have previously been made. X dollars today = x(1+i)^n n - years. They require that investors pay some price determined in the market to acquire them. They give their owners the chance to receive future payments. Stocks are ownership shares in a corporation.

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