Businessmen aren't serfs. They do business where they choose to; even the communist Chinese can't stop that.
Public/private partnerships make business instruments of government. As an instrument of government you are not free to act as you would if you were operating freely.
Public/private partnerships began corrupting American government in the mid-1990s during roundtables that Clinton and Gore held to get business to cooperate with sustainable development, among other things.
Public/private partnerships are boasted by the white house still today. They are a form of fascism and should not be allowed by the American people, but most Americans don't know this corruption exists, or if they do, they are getting paid in some form by the government to carry out the government's agenda. This is NOT freedom.
Example:
The Empowerment Zones/Enterprise Communities (EZ/EC) Program represents a new way of doing business for the Federal government.
http://www.ezec.gov/Invest/pwguide.html
These kinds of deals are responsible for the trend for local governments to condemn property through eminent domain (another program that is easy to abuse) to give to private developmers. Then the developments are funded again by the government because they are usually developments the free market won't support.