The concept of macro and micro economics of education is a difficult one to explain in simple terms, because when we talk about the economy, and the way that it functions, it's not just about the economy. There are many other factors, both external and internal to the economy, which have a direct effect on the educational system and that is why it is so hard to talk about, and sometimes even impossible to understand.
In the United States there are a lot of economists who study the economy as a whole, and they do spend a great deal of time on macro economic theories, but when it comes to talking about the schooling system, the field of economics are usually very much ignored. That is, until something major happens, like unemployment, or inflation. Then everyone starts looking at the economy and its effects, and what better place to look than the classroom?
Macro-economists often have a lot of problems with their theories of how things work, because they believe that everything that occurs within the economy is just random happenstance. When the market is “healthy”, everything will be fine, and there will be no problems. Unfortunately for them, they don't understand that in a healthy market, everything is random, and there is no way that things will be alright in the future.
Macroeconomics, unfortunately for them, is just a theory, and it doesn't provide any answers. They will say that there are some things that cause the market to go down, and others that cause it to go up. But, they never say what exactly these things are, and what they are causing. That is a big problem, because they can only theorize about things, and they don't have any real evidence that they are right, and sometimes they are wrong.
Microeconomics, on the other hand, actually tries to answer questions. It takes the information that is available and analyzes it to figure out what causes things to happen. For example, if a business is expanding, it might think that people are willing to buy more of their products, but it might be a sign that people are just not spending money, because there aren't enough jobs, or incomes to support that.
Microeconomics can also show why unemployment is caused by things that a business cannot control, but that could still affect it. For example, if a company hires too many people too fast, they will end up with too many employees, which leads to an over production, and the company will not make as much as it did before, which is when a company loses money.