Lex mercatoria is a fancy way of saying "business law". It is a set of rules that businesses have to follow when they trade with each other across different countries or regions. It's like a big rule book that tells everyone what they can and cannot do when they buy or sell stuff to each other.
Think of it like playing a game of soccer. There are rules that everyone has to follow, like not using your hands and not taking the ball out of bounds. These rules are there to make sure that the game is fair and everyone has a good time.
Similarly, lex mercatoria is there to make sure that everyone in the business world is following the same rules. These rules can include things like how to write a contract, how to settle disputes, and how to protect copyrights or trademarks.
So, if you are a business person who wants to buy or sell things to people from other countries, you need to know about lex mercatoria. It helps you understand what you can and cannot do, so you can play by the rules and everyone can trade fairly.