The following are the differences between the Parliamentary and Presidential executives : 

1. In a Parliamentary executive, double executives are found: 

• Nominal executive 
• Real executive. While in a Presidential executive, there is only one executive and that is the real executive. 

2. Members of the Parliamentary executive are selected from among the members of the ‘Parliament’ and are responsible to Presidential the popular house of the parliament. While the members of the Presidential executive, as in U.S.A, are not chosen from the legislature, but are appointed by the president. Here, the executive is not responsible to the legislature. 

3. In Parliamentary administration, the tenure of the executive council of ministers is not definite, while in Presidential executive, it is definite as defined by the constitution. It is difficult to remove the executive before the prescribed period. 

4. In Parliamentary administration there is always a close relationship between the legislature and the executive, while in presidential executive, the principle of separation of powers is adhered to rigidly. So the executive and the legislature are completely independent of each other.