Financial Experts Challenge Traditional Wealth Wisdom Amid Market Volatility

Investment experts challenge traditional adages like "buy what you know" and keeping emergency funds while in debt. Discover why your home might not be an investment.

By: AXL Media

Published: Apr 17, 2026, 8:56 AM EDT

Source: RNZ Pacific

The Hidden Risks of Familiarity and Home Bias

Dean Anderson, founder of Kernel, warns that the popular "buy what you know" narrative often encourages investors to over-concentrate in recognizable brands regardless of their actual market value. A clear example was seen post-COVID, where many retail investors flocked to Air New Zealand simply due to brand recognition, only to face subsequent share price declines. This is compounded by "home bias," where New Zealanders disproportionately invest in domestic stocks. Associate Professor Gertjan Verdickt notes that while global market theory suggests non-US stocks should comprise nearly 60% of a portfolio, local advice often keeps international exposure far lower, limiting diversification benefits.

Deconstructing the Homeownership Investment Myth

A cultural cornerstone in New Zealand is the belief that a primary residence is a person’s best investment. However, Professor Verdickt argues that from a purely financial perspective, an owner-occupied home often fails the definition of an investment because it produces no income and remains an illiquid asset. While homeownership provides security, there is little academic evidence that it is financially superior to renting and investing the surplus into more liquid, diversified assets. This "concentration of wealth" in a single asset can leave households vulnerable to local property market downturns.

Rethinking Savings Rates and Emergency Funds

The standard advice to save a fixed 10% to 15% of income throughout one's life is being challenged by the "consumption smoothing" theory. Economists suggest that savings rates should be fluid: lower or negative when young, peaking in mid-life, and spending down in retirement. Furthermore, the practice of holding an emergency fund while carrying high-interest credit card debt is labeled "economically irrational." Experts argue that the interest rate spread makes it far more logical to clear expensive debt first, as the cost of the debt far outweighs the meager returns of a low-interest savings account.