Cumulative advantage

Cumulative advantage is a concept that says if you start off with more of something than someone else, chances are, you will end up with even more over time. It's like a snowball effect - if you start off with a big snowball, it can get bigger and bigger.

A great example of this is if two people start off with the same amount of money. If one person invests that money and the other person spends it, then over time, the person who invested the money will end up being much richer because the money that was invested will start to add up.