A bubble (Bubble) is a state in which asset prices rise excessively above their intrinsic value. It appears in various markets such as stocks, real estate, and virtual assets. As market participants buy in anticipation of future price gains, prices become detached from actual value. A structure is formed in which demand begets demand.
Bubbles are created by a combination of psychology and liquidity. Interest-rate cuts or expanded liquidity increase the inflow of funds. Investors become convinced that prices will keep rising. Expectations that an asset can be sold for “more later” come to dominate trading over its fundamental value. In this process, rational judgment weakens.
A representative example is the tulip speculation craze in 17th-century the Netherlands. Prices of rare tulip varieties soared. Some bulbs were worth more than the annual salary of a skilled laborer at the time. When demand faded, prices collapsed. Investor losses surged.
Bubbles have repeated themselves in modern economies as well. The dot-com bubble in the early 2000s is a prime example. The value of internet companies soared without earnings. When profitability was later examined, stock prices plunged. The 2008 global financial crisis also began with the collapse of a real estate bubble. U.S. home prices rose excessively. As bad loans became reality, the financial system was shaken.
A key feature of bubbles is the asymmetric structure of sharp rises and falls. The uptrend lasts for a long time. The decline is brief and abrupt. The moment market sentiment shifts, sell orders flood in. Liquidity evaporates rapidly. Prices then fall in a chain reaction.
Policymakers use interest-rate adjustments and lending regulations to curb bubbles. They block excessive credit expansion. However, policy responses inherently lag. It is difficult to completely prevent a bubble before it has already formed.
In investment decisions, distinguishing between value and price is essential. Corporate earnings, asset profitability, and cash flow are the benchmarks. Expanding investments based only on short-term price gains increases risk.
Bubbles are a recurring phenomenon in economic growth. But when they burst, they shock the real economy and the financial system. They are the result of excessive expectations by market participants. Understanding the structure and establishing response strategies are necessary.
