I think the Chinese model of layered state ownership is the best applicable model for the US to build from. Having every Wal-Mart for example, owned by the national federal government, would be less impactful on working people then if every local community, city, county, and state, held sway over relavent fields of interest which collectively builds up to a majority share. Not to mention the workers of the enterprise and local minority groups in the area effected by a store’s decisions.