Freedom, $1 at a time!
Why choose a mixed economy?
Mixed Economy, the (Regulated) Freedom Economy. <3
Another negative is that the government decides the amount of tax on products, which leads to people complaining about high taxes and their unwillingness to pay them. Moreover, lack of price control management can cause shortages in goods and can result in a recession. But that's alright, if they don't have the money to pay the taxes, they probably weren't fit to be in business.
So, in conclusion...
It works, and it works well.