Presidential and Parliamentary systems have been adopted across the globe as a result of theBritish imperialistic policies and the admiration of the American ideal democracy based on afederalist system. This essay will outline strengths and weakness of both Presidential andParliamentary systems respectively. Furthermore, this essay will also examine a differentsystem which is a fusion of both Presidential and Parliamentary systems, that is, the Semi- presidentialism which has been adopted by some countries such as France, South Africa andBotswana. Finally a conclusion summarizing all the governmental systems and how theyhave been widely adopted by different states, whether they have influenced autocracy or democracy and if needs be a short analysis of which system is widely accepted and why it isthat in that way.A presidential system constitutes of a one person, non-collegial executive kind of government(Cheibub: 2007). In this system, the presidential candidate is voted for by the people, in thissense, he/she is voted for directly by the people hence this system is more of a directdemocracy. It also characterizes proportional representation, and federalism or devolution isemployed and unlike a parliamentary system, this system has a codified constitution and a bill of rights (Heywood: 2007). Some presidential systems also have with them coalitiongovernments, where by the majority government shares power and decision making andhands over some institutions of government to the opposition party.Presidential systems are also characterized by the presence of an effective bicameral system(Heywood: 2007), which also has its own strengths and weaknesses. The system also investsa lot of power in one individual seen as the president can be in power for a fixed term andcannot be removed by the legislature, and the president is also not accountable to thelegislature. Presidential systems are based on a separation of powers that is, that is, theexecutive, the legislature as...