L4

Lecture number: Four
Topics covered: Overview of investment process as outlined in Chapter One of the textbook.
Importance: Exam questions will focus on this chapter; students are urged to study it carefully.

Goal of Investment: Enable individuals to accumulate wealth.
Measurement of Investment Success: Evaluated through utility function, which reflects how much satisfaction is derived from consumption over a lifetime.
Definition of Utility Function: A function of consumption vector that demonstrates the satisfaction derived from the consumption of goods and services.

Role in Economic Growth: Investments facilitate economic growth by allowing individuals to finance activities.
Importance of Financing: Individuals need the ability to borrow funds (e.g., mortgages) to increase their utility functions and overall economic well-being.
Mortgage Example: In San Diego, the median house price is approximately $600,000. Many individuals require mortgages, which may account for up to 90% of the purchase price.
Impacts of Investment: Investment influences employment in sectors like construction and manufacturing, contributing to overall economic development.

Concept: Society must distribute resources efficiently, achieving Pareto efficiency in resource allocation.

Types of Returns: Investments can yield current income and potential increases in value.

Securities vs. Property: Investments can be categorized as securities (debt or ownership claims) or tangible properties (real estate).
Definition of Security: Evidence of debt or ownership of an asset, including stocks, bonds, and options.
Definition of Property: Tangible personal property, primarily influenced by real estate investments in later sections.

Direct Investments: Investors directly acquire a claim or ownership percentage on securities or properties. Examples include:
- Stock purchases (e.g., common shares).
- Real estate transactions (e.g., buying a house).
- Savings accounts, certificates of deposit (CDs), bonds.
Indirect Investments: Investments in a group of securities or properties, such as mutual funds or limited partnerships.
- Mutual Funds: Popular in the world of indirect investing, with types including open-end and closed-end funds.
- Types of Securities: Investments can be classified into debt (e.g., bonds), equity (e.g., shares), and derivatives (e.g., options).

Risk Measurement: Risk can be quantified, leading to a risk-return trade-off. Investors must consider:
- Low-risk investments: Typically associated with greater certainty of returns (e.g., government bonds).
- High-risk investments: Linked with speculative returns (e.g., options trading).
Beta: Measures non-diversifiable or systematic risk, indicating the sensitivity of an investment to market movements.
Standard Deviation: Used to measure risk; investors assess how fluctuations affect expected returns.