Keynesian economists believe: the economy ought to be left to market forces. government policies do not affect economic activity. most government policies would probably make things worse. government can implement policy proposals that can positively impact the economy.

Keynesian economists believe: government can implement policy proposals that can positively impact the economy

Keynesian economist generally believed that the Economic situation in a country is a direct result from both private and public sector activities simultaneously, so both positive and negative things could derive from both sectors