The money comes from a replacement of equivalent exchange. At that time, it was simple and it had reasonable value, I think. However, money in modern society completely had been changed from the origins. Its form was changed into plastic, stock or land. They are changing its value by the global economics or international finance. Besides free economics are spreading in the world as a result of information revolution.

I had been thinking that company make right products with right price. Regrettably I can’t understand what is the right price. There are many things left for me to study.