Smarter Approach to Emergency Funds Lecture Notes

Conceptual Foundations of Emergency Funds

• Core Definition of an Emergency Fund: A household should possess enough financial capital to withstand unexpected shocks—such as periods of unemployment, underemployment, or major unplanned expenses—without experiencing "undue stress."

• Variable Factors in Financial Security: The requirements for an emergency fund are highly personal and depend on several metrics:

  • Amount: How much financial capital is considered "enough"?
  • Investment Strategy: How should that capital be saved or invested?
  • Shock Characteristics: The magnitude, frequency, and duration of the potential financial shock.
  • Stress Thresholds: How much stress is defined as "undue" for a specific household?

• Personalized Requirements Based on Employment and Income:

  • Stable Employment: Individuals with highly stable jobs (e.g., government employees or certain union members) typically require a smaller reserve.
  • Irregular Employment: Contract workers or commission-based employees need a larger reserve due to income volatility.
  • Income Brackets: Households in the top $10\%$ of income often have more flexibility to decrease expenses during a crisis than a household earning near the national median.

The Limitations of Traditional Advice and the Impact of Inflation

• Standard Rule of Thumb: The typical advice is to save at least three to six months’ worth of expenses.

• Inflation as the Primary Enemy: Time and inflation erode the purchasing power of cash held in conservative vehicles.

  • Example: $10,000$ placed in U.S. Treasury bills at the end of 2008 lost $15\%$ of its purchasing power by 2020.
  • Impact: If $10,000$ represented six months of expenses in 2009, by 2020, that same nominal amount would only cover five months of expenses.

• Liquidity vs. Cash: Emergency funds do not need to be held entirely in cash instruments. They simply require enough liquidity to persevere through scenarios with a reasonable probability of occurring.

The "Smarter" Tiered Emergency Fund Strategy

• Conservative Balanced Fund Strategy: The strategy suggests overfunding the emergency fund and investing it in a conservative balanced fund (comprised of $20\%$ to $30\%$ stocks).

  • Primary Example: Vanguard LifeStrategy Income Fund (VASIX).
  • Historical Rationale: Since the Great Depression, the maximum drawdown of a $20/80$ stock/bond combination has been approximately $15\%$.

• Overfunding Calculation: To guarantee six months of available expenses at all times, a household should fund for seven months and invest it in a fund like VASIX.

  • Safety Margin: Even an immediate $15\%$ market drop (occurring at the worst possible time) would still leave more than six months of expenses available.

• The Hybrid Approach: Pragmatically, many households may prefer a tiered system:

  • Tier 1: One month of expenses in a cash account (interest-bearing checking, savings, or money market fund) for immediate access.
  • Tier 2: Six months of expenses held in a balanced fund like VASIX.

Comparative Investment Performance

• Real Growth Comparison (1994 Benchmark):

  • Hybrid Strategy (VASIX + Cash): Achieved a compounded real (inflation-adjusted) growth rate of $3.6\%$.
  • Traditional Cash-Only Strategy: Achieved a compounded real growth rate of only $0.2\%$.

• Volatility and Risk Assessment: While some view VASIX as risky, the long-term risk of failing to keep up with inflation is often greater than the minor month-to-month volatility of a balanced fund.

• Alternative Investment Vehicles:

  • Fidelity Freedom Index Income (FIKFX).
  • Schwab Monthly Income Max Payout (SWLRX).
  • Dimensional Retirement Income (TDIFX).
  • Vanguard Short-Term Bond Fund: (Comprised of $70\%$ Treasuries and $30\%$ Corporate bonds).
  • Wellesley Income Fund: Recommended by some users for a portion of the fund.
  • I Bonds: Suggested as a solution for inflation protection.
  • SWAN ETF: Defined as a $90/10$ mix of Treasuries and SPY LEAPS (Long-term Equity Anticipation Securities).

Questions & Discussion

• Question on Short TIPS: Why not use short-term Treasury Inflation-Protected Securities (TIPS) instead of T-bills or cash?

  • Response: Short-term TIPS have performed marginally better than cash but have still lost purchasing power since 2009 according to Portfolio Visualizer data.

• Question on 1994 Data: Why was 1994 used as the starting point for the growth illustration?

  • Response: 1994 marks the inception of the Vanguard LifeStrategy funds.

• Critique of Bond Risks: Jags4186 argues that bonds can decrease in value and suggest using high-yield CD/Bank bonuses instead.

  • Example: Two CDs at $1.75\%$ with a $250$ bonus for holding $25,000$ for 3 months creates an effective return of $5.75\%$.
  • Counter-Point: vineviz notes that while active "rate chasing" works, it requires high active management that may not appeal to everyone.

• Deflation Concerns: KlangFool and willthrill81 argue that cash and nominal bonds serve as a separate asset class that protects against short-term deflation.

• Total Portfolio AA (Asset Allocation) vs. Bucketing:

  • The Bucketing Argument: It is mentally easier to keep the emergency fund separate because as the main investment portfolio grows, the emergency fund stays relatively stable in real terms. Separating them prevents the need to constantly adjust the overall AA of the total portfolio.
  • The Total Portfolio Argument: "Rich people" or those with large taxable accounts (e.g., $>1 \times$ annual spending) do not need a separate bucket. It is simpler and more tax-efficient to manage risk across one single portfolio.
  • Lifecycle Perspective: Bucketing is more useful for early-stage investors who are still bridging the gap between their initial emergency fund and accumulating significant taxable wealth (after maxing out 401(k) matches, Roth IRAs, etc.).

• Tiered Emergency Concept by MathWizard:

  • Cash Flow Fund: 3 months of expenses for known "unknowns" (replacing appliances, car repairs).
  • Portfolio Tier: Use the main investment portfolio for truly rare/unusual shocks (job loss combined with multiple big expenses). Guarding against rare events with cash is compared to "buying very expensive insurance."