The social earnings ratio is how much money someone makes compared to how many friends they have. Let's say you have 10 friends and you make $50 per week selling lemonade. That means you have a social earnings ratio of 5:1 (because 50 divided by 10 is 5). It's like having a score that looks at how popular you are and how much money you make. Some people think that having a high social earnings ratio is important because it means you have a lot of friends and make a lot of money. Others think it's not important because friends and money are not the only things that matter in life.