Economic bubbles are often associated with major stock exchanges, sophisticated financial markets, or luxury real estate. However, a bubble can emerge in much more ordinary environments, far from Wall Street or international speculative markets. It can appear in urban land, certain raw materials, or activities supported by public subsidies.

The mechanism remains the same. The price of an asset begins to rise, no longer solely because it meets a real need or has objective economic value, but because everyone anticipates that the price will continue to climb. The purchase is no longer motivated by use, but by the hope of reselling at a higher price.

Urban land often provides the most visible example in West Africa. In Dakar, Abidjan, and Lagos, land prices have risen sharply in several areas in recent years. In some outlying neighborhoods, plots of land appreciate in value even before infrastructure or public services are actually installed. Purchases are based less on immediate projects than on the anticipation of future price increases.

This logic can become self-perpetuating. The higher prices rise, the more new buyers enter the market for fear of missing out. The increase fuels further increases. As long as confidence remains intact, the system appears robust.

The phenomenon isn't limited to real estate. Certain agricultural or mining commodities can also experience periods of overvaluation. When a product is perceived as particularly profitable, investments pour in rapidly, sometimes exceeding actual demand. If expectations change abruptly, prices correct just as quickly.

Sectors supported by public policies can also generate this type of dynamic. A heavily subsidized activity, benefiting from tax advantages or easy access to credit, may attract investment less for its actual profitability than for the windfall it represents. When public support decreases, the economic equilibrium becomes more fragile.

Nigeria has experienced several episodes of real estate pressure in certain urban areas where prices have risen faster than real incomes. In several regional capitals, land values sometimes fluctuate more according to expectations of prestige, speculation, or scarcity than to actual effective demand.

The danger of a bubble lies not only in the price surge, but also in the subsequent correction. When buyers become more cautious, credit slows, or confidence reverses, prices can fall rapidly. Those who bought at the peak find themselves vulnerable, banks become more cautious, and economic activity slows.

An economic bubble, therefore, does not always begin in a trading room. It can arise from an empty plot of land, from an agricultural product, or from an activity that everyone suddenly considers the new promise of wealth.