A republic is any government that doesn't have a supreme leader. Many people confer with each other and make decisions.
They affect the economy a few ways one way is that they well hire them instead of a u.s citician and they get put on welfare and and intrude on our land
They minimize business cycles by promoting growth during the contractionary phase of the business cycle. The government can promote growth through fiscal policy or monetary policy.
Hope this helps
Something Involves of Nuclear,Communism,RUSSIA and Intervention of USA(As Always),The world Justifies Whatever America Said(As Always), And A LoadS AND LoadS Of Yada Yada and Black GUY.Resulting Funny Spanish.