A Developed Stock Market = a Self-Fulfilling Prophecy

📉 At first glance, the stock market looks like a rational machine where prices are based solely on data, earnings, and economic forecasts. But in reality – especially in developed economies – it’s much more psychological.

The stock market often acts like a self-fulfilling prophecy:
If participants believe in growth – growth happens.
If fear takes over – indexes fall, even if the economic data isn’t that bad.

Why does it work?

1. Investor expectations drive trends.
   When big players start buying in anticipation of growth, markets rise – others follow, and it snowballs.
2. Media and analysts add fuel to the fire.
   Headlines like “S&P 500 poised to hit new highs” boost confidence and push more money into the market.
3. Passive investing adds inertia.
   ETFs and index funds buy stocks automatically as money flows in – no analysis needed.
4. Central banks and politicians play along.
   If markets expect rate cuts, those expectations affect the Fed’s or ECB’s real decisions.

But let’s not forget:

But this cuts both ways.
Panic, rumors of recession or defaults trigger sell-offs — and the economy slows, even if it was doing fine before.
Classic case: the 2008 crisis.

A classic example is the 2008 crisis. Expectations of a “burst housing bubble” triggered a massive flight from risky assets. This, in turn, accelerated the collapse of the financial system.

🧠 Takeaway:
A developed stock market is less about hard data and more about mass psychology.
It reflects not reality, but our expectations about reality.
In investing, emotions often outweigh facts.