A different metric

I am often confused by names of political/economic systems like fascism or oligarchy. This happened again at a recent Truthout post. My proposal:

Thanks for the historical perspective. But there is another metric which is rarely, if ever, used to define the spectrum of socioeconomic systems, one of power concentration.
democracy = power is determined by voters

capitalism = power concentrates in owners; owners game the system to determine who has the opportunity to own
slave capitalism = power of owner extends to owning workers/laborers
feudal capitalism = power concentrates in owners to extent they control many work/labor conditions including wages and residency
communism = power concentrates in members of single state party committee
oligarchic capitalism = power concentrates in small number of owners
monopoly = power concentrates in one corporation and their owners
fascism = power concentrates in one political party

The point is that the concentration of economic power has parallels in the concentration of political power. The terms/names used to describe each system often overlap in meaning and thus, can be confusing. It would be better to use a sliding scale to represent power concentration; something along the lines of the Kinsey sexuality scale. On a scale of 0-10 (low to high) how is political power distributed? How is economic power distributed? Based on Gillens and Page, political power score is roughly 7.6 in favor of the economic elites <http: www.vox.com="" 2014="" 4="" 18="" 5624310="" martin-gilens-testing-theories-of-american-politics-explained="">. Based on stock ownership, the economic power scale is about 6.6 - top 5% owns about 2/3 of stocks <https: www.salon.com="" 2013="" 09="" 19="" stock_ownership_who_benefits_partner=""/>. The latter is not the best metric of economic power; actual score is likely significantly higher. This type of granular information is more useful in accurately describing power relationships than misleading names/titles/terms.