Answer:
Jean-Jacques Rousseau
Step-by-step explanation:
The theory of participatory democracy was developed by Jean-Jacques Rousseau; a genevan philosopher, writer and composer, known for his text titled "The Social Contract".
This theory was later promoted by J.S. Mill and G. D. H. Cole, who argued that political participation is a requisite for the realization of a just and balanced society.
Participatory democracy itself, is a term, that describes the tendency, to ca for more involvement of citizen participation, and greater political representation in the affairs of government activities than traditional representative democracy.