In the United States, a majority of the means of production and services are owned either by the public or by private interests.
Who owns which and by what percentage have been determined by trial and error during the history of the U. S. In fact, our economic and political history has been an attempt to fine tune a system of government made up of a compromise between capitalism and socialism.
That is in essence what Democratic Progressive Capitalism is.
Most areas of endeavor in the U. S. may be at least in part under either capitalism or socialism. Some areas more under socialism at any of the three levels of government (national, state or local) include education, postal service, utilities, military, forests, parks and infrastructure (that is, roads, dams, bridges, etc.).
In general in the governmental compromise developed in the U. S. over more than two centuries, the Federalist Whig-Republican party group has wanted the government to be more friendly to the private property and affluent parts of society.
In contrast, the anti-federalist Democratic-Republican, Democratic party grouping has had a greater desire to create a government more favorable to human rights and the less affluent.
To be more specific, the party now known as the Republican has wanted in its compromise role to provide less services and/or safety net to those in need, to subsidize the business sector more and to regulate and tax the wealthy less.
In comparison, the party now known as the Democratic has desired in its vision of progressive capitalism to build a stronger safety net for those in need, to create a leveler economic playing field for the poorer group, to have more government regulation to keep operations competitive in the market system and to have more progressive taxation.
This series of compromises between the U. S. political parties through history have generally been carried on under the auspices of the pragmatic theory that something is good if it works.
Since this seems to be in the eye of the beholder as to what works best, it appears the U. S. will continue to develop a variety of democratic progressive capitalism on the basis of thesis, antithesis, and synthesis with the synthesis being the new thesis to keep the changes in democratic government continuing.
It is certainly to be hoped that our democracy can continue to promote a system which will provide a government that is indivisible with a maximum of liberty and justice for all.