But what better link to productivity is there than 1) Individual performance compensated (ie work harder get paid more) and 2) Equity share in the business (ie a share of the profits).
In an ideal world that might be true; but we live in a world in which people are not always paid more for working harder, or are unable to attain equity shares. The truth is that there are systematic, and stubbornly persistent, differences in bargaining power between workers and employers.
