电子科技大学：《金融学基础》（英文版）Chapter 12: Portfolio Selection and Diversification

Finance School of management Chapter 12: Portfolio Selection and Diversification Objective To understand the theory of personal portfolio selection in theory and in practice uesTc

1 Finance School of Management Chapter 12: Portfolio Selection and Diversification Objective To understand the theory of personal portfolio selection in theory and in practice

Finance School of management Chapter 12 Contents The process of personal portfolio selection The trade-off between expected return and risk Efficient diversification with many risky assets uesTc

2 Finance School of Management Chapter 12 Contents ❖ The process of personal portfolio selection ❖ The trade-off between expected return and risk ❖ Efficient diversification with many risky assets

Finance School of management The Concept of portfolio A person's wealth portfolio includes Assets: stocks bonds, shares in unincorporated business, houses or apartments, pensions benefits, insurance policies, etc Liabilities. student loans. auto loans. home mortgages, etc uesTc

3 Finance School of Management The Concept of ‘Portfolio’ ❖ A person’s wealth portfolio includes – Assets: stocks, bonds, shares in unincorporated business, houses or apartments, pensions benefits, insurance policies, etc. – Liabilities: student loans, auto loans, home mortgages, etc

Finance School of management Portfolio selection a study of how people should invest their wealth optimally a process of trading off risk and expected return to find the best portfolio of assets and liabilities Narrow and broad definitions uesTc

4 Finance School of Management Portfolio Selection ❖ A study of how people should invest their wealth optimally ❖ A process of trading off risk and expected return to find the best portfolio of assets and liabilities ❖ Narrow and broad definitions

Finance School of management Portfolio selection Although there are some general rules for portfolio selection that apply to virtually everyone, there is no single portfolio or portfolio strategy that is best for everyone uesTc

5 Finance School of Management Portfolio Selection ❖ Although there are some general rules for portfolio selection that apply to virtually everyone, there is no single portfolio or portfolio strategy that is best for everyone

Finance School of management The Life Cycle In portfolio selection, the best strategy depends on an individuals personal circumstances(family status, occupation, income, wealth) Illustrations Investing in stock market: Chang(30, a security analyst)/Obi(30, an English teacher) Buying insurance policies: Miriam(a parent with dependent children/Sanjiv(a single person with no dependents) uesTc

6 Finance School of Management The Life Cycle ❖ In portfolio selection, the best strategy depends on an individual’s personal circumstances (family status, occupation, income, wealth) ❖ Illustrations – Investing in stock market: Chang (30, a security analyst) / Obi (30, an English teacher) – Buying insurance policies: Miriam (a parent with dependent children) / Sanjiv (a single person with no dependents)

Finance School of management Time horizon In formulating a plan for portfolio selection, you begin by determining your goals and time horizons Planning horizon: the total length of time for which one plans Decision horizon: the length of time between decisions to revise the portfolio Trading horizon: the minimum time interval over which investors can revise their portfolios /its determination and impacts uesTc

7 Finance School of Management Time Horizon ❖ In formulating a plan for portfolio selection, you begin by determining your goals and time horizons – Planning horizon: the total length of time for which one plans – Decision horizon: the length of time between decisions to revise the portfolio – Trading horizon: the minimum time interval over which investors can revise their portfolios / its determination and impacts

Finance School of management Risk Tolerance A major determinant of portfolio choices It is influenced by such characteristics as age, family status, job status, wealth, and other attributes that affect a person s ability to maintain his standard of living in the face of adverse movements in the market value of his investment portfolio uesTc

8 Finance School of Management Risk Tolerance ❖ A major determinant of portfolio choices ❖ It is influenced by such characteristics as – age, family status, job status, wealth, and – other attributes that affect a person’s ability to maintain his standard of living in the face of adverse movements in the market value of his investment portfolio

Finance School of management Professional Asset Managers Investment advisors finished products" from a financial intermediary Specialization, information and cost advantages uesTc

9 Finance School of Management Professional Asset Managers ❖ Investment advisors & “finished products” from a financial intermediary ❖ Specialization, information and cost advantages

Finance School of management The Trade-off Between Expected Return and risk The objective is to find the portfolio which offers investors the highest expected rate of return for the degree of risk they are willing to tolerate 6 Two step process find the optimal combinational of risky assets mix this optimal risk-asset with the riskless asset uesTc 10

10 Finance School of Management The Trade-off Between Expected Return and Risk ❖ The objective is to find the portfolio which offers investors the highest expected rate of return for the degree of risk they are willing to tolerate ❖ Two step process: – find the optimal combinational of risky assets – mix this optimal risk-asset with the riskless asset