What causes a market crash and how do economists explain it?

A market crash happens when people suddenly lose confidence and sell everything quickly, like a big game of tag where everyone runs at once.

Imagine you and your friends have a piggy bank that holds all the candies you earn from doing chores. This piggy bank is like a market, it holds all the money people use to buy things like toys, ice cream, or even houses.

Now imagine one day, someone tells you the candy shop is closing forever. You and your friends get scared and start running to the store to grab as much candy as possible before it’s too late. Everyone tries to take candies at once, but there are not enough, this is like a market crash.

Economists watch how people behave in the market, just like you watch your friends in the candy shop. They use tools and clues (like charts and numbers) to figure out why people suddenly get scared or excited, because sometimes it’s not just one person who starts running; it's everyone!