Hoja de repaso: Fundamentals of Money and Banking

1. 📌 Essentials

• Money serves as a medium of exchange, unit of account, and store of value.
• Types of money include commodity, representative, fiat, and greenbacks.
• The gold standard limited money supply by backing currency with gold.
• Bonds are debt paying periodic interest and maturing at par.
• Central banks regulate money supply, act as lenders of last resort, and supervise banks.
• Monetary policy influences GDP, inflation, and overall economic stability- Market trends: bull markets (rising) and bear markets (falling).
• Mortgage loans are secured by real estate; foreclosure is the legal process for unpaid loans.
• Diversification reduces investment risk across assets.
• Bonds are rated from AAA (highest quality) to junk (high risk).

2. 🧩 Key Structures & Components

• Money — medium of exchange, unit of account, store of value.
• Types of Money — commodity (specie), representative, fiat, greenbacks.
• Bonds — debt instruments with fixed interest, maturity, and ratings.
• Central Bank — regulates money supply, manages inflation, supervises banking system.
• Financial Instruments — stocks, bonds, options, credit/debit cards.
• Market Types — bull (rising), bear (falling).
• Mortgage — loan secured by property, with foreclosure as enforcement.
• Interest — coupon rate (periodic payment), yield (return on bond).
• Investment Strategies — diversification, speculation, capital gains/losses.
• Inflation-Indexed Bonds — adjust principal for inflation.

3. 🔬 Functions, Mechanisms & Relationships

• Money's primary functions facilitate transactions, valuation, and savings.
• Central banks control money supply via open market operations, reserve requirements, and interest rates.
• Bonds provide capital to issuers; investors assess risk via ratings.
• Market trends influence investor behavior: rising markets attract buying, falling markets prompt caution.
• Mortgage loans are secured; foreclosure enforces debt repayment.
• Diversification spreads risk across different assets, reducing overall volatility.
• Yield is inversely related to bond price; higher risk bonds have lower ratings.
• Monetary policy adjusts interest rates to influence economic activity and inflation.
• Financial instruments serve different investor needs: stocks for growth, bonds for income.
• Inflation-indexed bonds protect purchasing power against inflation.

4. Comparative Table

5. 🗂️ Hierarchical Diagram

Financial System
 ├─ Money
 │    ├─ Types
 │    │    ├─ Commodity (specie)
 │    │    ├─ Representative
 │    │    └─ Fiat (greenbacks)
 │    ├─ Characteristics
 │    │    ├─ Acceptability
 │    │    ├─ Durability
 │    │    ├─ Portability
 │    │    ├─ Divisibility
 │    │    ├─ Uniformity
 │    │    └─ Limited supply
 │    └─ Functions
 │         ├─ Medium of exchange
 │         ├─ Unit of account
 │         └─ Store of value
 └─ Bonds
      ├─ Types
      │    ├─ Municipal
      │    ├─ Corporate
      │    ├─ Savings
      │    ├─ Junk
      │    └─ Inflation-indexed
      ├─ Features
      │    ├─ Par value
      │    ├─ Coupon rate
      │    ├─ Yield
      │    └─ Maturity
      └─ Ratings
           ├─ AAA to junk
           └─ Creditworthiness assessment

6. ⚠️ High-Yield Pitfalls & Confusions

• Confusing fiat money with commodity money; fiat is not backed by physical commodities.
• Mistaking bond yield for coupon rate; yield varies with market price.
• Overlooking the impact of bond ratings on investment risk.
• Assuming all market declines are equivalent; market timing is complex.
• Confusing mortgage foreclosure with general repossession.
• Misunderstanding the difference between interest rate and yield.
• Ignoring inflation's effect on fixed-income securities like bonds.
• Overestimating the safety of high-rated bonds without considering market conditions.

7. ✅ Final Exam Checklist

• Define money and list its three main functions.
• Differentiate between commodity, representative, and fiat money.
• Explain the gold standard and its impact on money supply.
• Describe bond features: par value, coupon rate, yield, maturity.
• Identify the roles of central banks in monetary policy.
• Distinguish between bull and bear markets.
• Understand mortgage loans and foreclosure processes.
• Explain diversification and its importance.
• Rate bonds from AAA to junk and interpret their significance.
• Describe inflation-indexed bonds and their purpose.
• Summarize how central banks influence inflation and GDP.
• Recognize the characteristics of different types of financial instruments.
• Understand the hierarchy of the financial system components.
• Be aware of common pitfalls in interpreting market trends and bond ratings.
• Prepare to analyze how monetary policy affects the economy and investments.