Okay kiddo, have you ever heard of an economist? It's someone who studies the way money and things are used by people and businesses. James D. Montgomery is one of these economists, and he is very smart and knows a lot about how money works.
Imagine you have some toys that you want to sell to other kids. You have to think about how much money you want to charge for each toy and how many toys you want to make, right? James D. Montgomery helps people understand how to make these decisions for bigger things, like businesses or even whole countries.
He looks at lots of information, like how much things cost to make, how many people want to buy them, and how much people are willing to pay for them. That way, he can help people figure out how to make the most money and be the most successful.
It might sound a little boring, but it's important because it helps people and countries make good decisions about how to use their money and resources. So, James D. Montgomery is a bit like a smart grown-up who helps other people figure out how to use their money wisely.