The Economics of Money, Banking, and Financial Markets: Chapter 3 - What Is Money?

Money: Anything that is generally accepted in payment for goods and services or in the repayment of debt.
- Includes:
- Currency
- Checks
- Checking and saving account deposits
Differences:
- Wealth: Refers to the total collection of pieces of property that serve as store of value (e.g., stocks, bonds, lands).
- Income: Represents the flow of earnings per unit of time.
Stock vs. Flow:
- Money is a stock, which is a certain amount at a given point in time, whereas income is a flow.

Money serves three primary functions in any economy:
1. Medium of Exchange
2. Unit of Account
3. Store of Value

Used to pay for goods and services.
Promotes economic efficiency by:
- Reducing transaction costs (which arise from barter)
- Leading to specialization in what people do best
Features of Money:
- Easy to standardize
- Widely accepted
- Divisible
- Easy to carry
- Doesn’t deteriorate quickly

A repository of purchasing power over time.
It is used to save purchasing power from the time income is received until the time it is spent.
Comparison with Other Assets:
- Other assets (like stocks and bonds) typically have:
1. Higher returns
2. Prices that generally increase over time
3. The ability to deliver services (by themselves)
Advantages:
- Money is liquid relative to other assets and less risky.
Definition of Liquidity:
- Liquidity refers to the relative easiness and speed to convert an asset into a medium of exchange.
Disadvantages:
- Money loses value with inflation.

Payment system: A method of conducting transactions in the economy.
Means of Payment:
1. Commodity Money
2. Fiat Money
3. Checks
4. Electronic Means of Payment
5. Electronic Money

Defined as a means of payment made out of precious metals (such as gold or silver) or other valuable commodities.
Historical Context:
- Commodity money was the prevailing medium of exchange in most societies until about two hundred years ago.
Examples:
- Roman circus coin (Hadrianus)
- 1878 Brasher doubloon
- Mehmet V Ottoman Empire gold coin

Value Proof: Its value is not always easy to prove for everyone.
Transport Issues: Commodity money is generally heavy and hard to transport.
Value Fluctuations: The value of commodity money varies with the underlying commodity and is subject to supply and demand fluctuations.

Initially, paper currency was convertible into coins or a fixed quantity of precious metal.
Evolution to Fiat Money:
- Paper currency is now decreed by governments as legal tender but is not convertible into coins or precious metal.
Advantages of Fiat Money:
- Much lighter than coins or precious metals.
Drawbacks:
- Can be easily stolen and expensive to transport in large amounts.

Definition: Checks are instructions to a bank to transfer money from one person's account to another.
Advantages:
- Solve problems associated with carrying large amounts of cash (transport).
Problems:
- Moving checks takes time.
- Processing checks incurs costs, imposing transaction costs on society.

The rise of the Internet has made electronic transaction methods cheaper and more efficient.
Current Developments:
- Banks enable online bill payments directly.
- Automated deductions for recurring bills enhance consumer convenience.
- Estimated cost savings exceed one dollar per transaction when paying electronically versus by check.

Technology has allowed for the emergence of e-money that substitutes for cash and checks.
Forms of E-Money:
- Debit Cards:
- Allow consumers to buy goods/services and transfer funds directly from bank accounts to merchants.
- Stored-Value Cards: More advanced form of e-money.
- E-Cash: Used for online purchases.

Introduction: Bitcoin is a new electronic money created in 2009 by Satoshi Nakamoto.
Characteristics:
- Not controlled by a single entity (like a central bank).
- Decentralized creation through mining by users who verify Bitcoin transactions.
Assessment of Functions:
- Functions well as a medium of exchange.
- Does not fully satisfy the other two functions of money, limiting its use.
Concerns:
- Governments worry about its role in illicit transactions (e.g., drug trade, money laundering).

Behavioral Definition: Money is defined by social acceptance; its value relies on people's trust in its acceptance for payment.
Challenges: A behavioral definition does not clearly define which assets should be considered money.
Measures of the Money Supply:
- The Federal Reserve uses monetary aggregates to measure money supply.
- M1: The most liquid assets, calculated as:
- M1 = ext{currency} + ext{demand deposits} + ext{other checkable deposits}
- M2: Includes M1 plus additional less-liquid assets, calculated as:
- M2 = M1 + ext{time deposits} + ext{savings deposits} + ext{MM deposit accounts} + ext{MMMF shares}

Data (as of July 3, 2017; in $ billions):
- M1 = 1,481.5 + 1,501.5 + 574.8 = 3,559.8
- M2 = M1 + 357.7 + 8,923.9 + 673.7 = 13,515.1

Policymakers question which monetary aggregate best measures money supply.
Parallel Movements:
- If M1 and M2 move closely, either aggregate can effectively predict economic trends.
- If they diverge, they may signal different economic conditions, complicating policy decisions.

Reference to Figure 1 showing historical growth rates of M1 and M2 as published by the Federal Reserve Bank of St. Louis.

Detailed statistics of various components of Kuwait's money supply including currency in circulation, demand deposits, and overall monetary aggregates as reported by relevant financial institutions.

Money holds crucial implications in facilitating transactions, understanding liquidity, and evaluating different forms of payment systems across economies.