Alternatives to Capitalism and Communism Are there any remarkable economists who have envisioned alternative economic system to the ones previously tried? I'm looking for realistic economic system models and their authors.
Arguably, Henry George described such an alternative in his 1874 work Progress and Poverty.  His system eventually became known as Georgism.

George saw his system as different than either Capitalism or Communism, as both of those systems equated Land with Capital and called for either the private ownership of both, or the communal ownership of both.  Georgism calls for the private ownership of Capital but public ownership (of a sort) for Land.