What causes market bubbles and financial crashes?

A market bubble happens when people get super excited about something and keep buying it even though it might be way too expensive.

Imagine you have a lemonade stand, and everyone in town starts loving your lemonade so much that they all want to buy it. At first, that’s great, you make more money, and the price of your lemonade goes up. But then, instead of just buying from you, people start opening their own lemonade stands, thinking they can also sell super expensive lemonade. Soon, there are way too many lemonade stands, and not everyone can afford to buy that expensive lemonade anymore.

Market bubbles are like that, when people get carried away and keep buying things even though they’re overpriced.

What happens when the bubble pops?

When the bubble pops, it means people stop buying as much. They realize the lemonade (or stock, or house) is actually not worth as much as they thought. That’s when prices drop really fast, like a big financial crash.

It’s similar to a balloon popping, it goes from super full and happy to flat and sad in no time!

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Examples

  1. A group of kids all buy the same toy because they think it's super cool, but when they realize there are too many toys on the market, everyone gets disappointed and sells them for less.

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