While the catalysts for market crashes change, the psychological challenge of enduring them remains the same.
The Price of Admission
Investing in stocks is inherently risky, but this risk is not a defect of the financial system; it is the engine of return. Between 1900 and 2019, global stocks delivered an annualized inflation-adjusted return of 5.2%, while bonds offered a more modest 2%. Over a 30-year horizon, that 3.2% gap results in a stock portfolio having 2.5 times more purchasing power than a bond portfolio. This premium exists precisely because stocks are volatile. If there were no periods of gut-wrenching declines, there would be no reason for the market to offer a premium over 'safe' assets.
The difficulty lies in the human psyche. Economists Richard Thaler and Shlomo Benartzi identified a phenomenon called myopic loss aversion: we are far more sensitive to losses than gains, and we tend to check our portfolios too often. This combination is toxic during a bear market—defined as a peak-to-trough decline of 20% or more. Since 1900, the U.S. has experienced 27 such events, averaging one every four and a half years. While the math of a recovery is clear in hindsight, the experience of living through one is defined by a total lack of clarity.
A Century of Catastrophes
Every bear market is different, and each one feels uniquely terminal at the time. In 1907, the market dropped 36% following the devastating San Francisco earthquake and a subsequent banking collapse. In 1917, the Spanish Flu coincided with the upheaval of World War I, leading to a real-term market drop of 45%. During these periods, investors weren't just looking at charts; they were witnessing global pandemics, natural disasters, and the potential collapse of the social order. The market often begins its recovery long before the news cycle turns positive, as seen in 1918 when the market rebounded even as the pandemic's worst wave was still unfolding.
The Great Depression remains the ultimate test of investor resolve. After the 1929 crash, the market fell 83% over 33 months. In nominal terms, it took 15 years to return to the previous peak. However, because the 1930s were a period of intense deflation, the real recovery in terms of purchasing power took about seven years. Even during this recovery, the market suffered four separate bear markets of 20% or more. The lesson is that recoveries are rarely linear; they are often punctuated by 'false starts' and secondary shocks that tempt investors to abandon their strategies.
Modern Crises and the Japan Exception
More recent history offers similar patterns of fear. The 1973 oil crisis saw stocks fall 46% (60% after inflation) as the 'Nixon Shock' failed to curb surging prices. The 2000 tech bubble burst wiped out the dreams of a new era of wealth, and the 2008 financial crisis threatened the very existence of the global banking system. In each instance, the narrative was that 'this time is different.' And in a sense, it was—the catalysts were new, but the market's eventual resilience was a repeat of a very old story.
However, we must address the 'elephant in the room': Japan. In 1989, Japan was the world's largest stock market, representing 45% of global capitalization. After its bubble burst in 1990, the market entered a stagnation that has lasted three decades. This is the nightmare scenario for any investor. It triggers the representativeness heuristic—the tendency to assume that because our current environment (low interest rates, high debt) looks like 1989 Japan, our outcome must be the same. While we cannot dismiss the possibility of a permanent decline in any single market, we can protect ourselves against it.
The Case for Deep Diversification
The Japan story is not an argument for pessimism, but a mandate for diversification. Even while the broad Japanese market remained flat for decades, specific segments like small-cap value stocks returned over 5% annually. We saw a similar trend in the U.S. during the 'lost decade' from 2000 to 2010; while the S&P 500 was underwater, small-cap value stocks delivered annualized returns of nearly 8%. This suggests that even when a country's main index falters, the underlying mechanics of capitalism—where investors demand a return for specific risks—continue to function.
Ultimately, bear markets are the price we pay for long-term wealth creation. They are born of uncertainty, and because humans are wired to seek certainty, they will always be painful. We cannot see the bottom when we are in the trenches, and the reasons for the decline will always seem uniquely catastrophic. However, for the diversified investor who understands that risk and return are two sides of the same coin, the best course of action is almost always to endure the uncertainty and wait for the eventual recovery.