Merits:
1. It is a stable government in which the tenures of the executive and legislature are fixed.
2. It is a strong government because of the fact that the executive is independent of day to day interferences by the Legislature and because the President has the power to take all decisions.
3. There is continuity in governmental policies because the tenure of the executive is definite and fixed.
4. It makes possible a government involving professionals and experts because the cabinet is constituted by the President strictly on merit.
5. It keeps contained the party politics to the Legislative sphere.
6. Because of being a strong executive, it is more conducive to the preservation of unity and integrity of the nation.
Demerits:
1. It depends upon the qualities of the single person who becomes the President.
2. The President can behave arbitrarily because he wields a large amount of power both as the head of state as well as of the Government.
3. Executive is not responsible before the Legislature.
4. Due to separation of powers, there are frequent deadlocks between the legislature and executive.
5. These are a source of inefficiency and mutual mud-slinging.
6. Fixed tenure makes the executive rigid and irresponsible in approach.
7. It is not free from evils of party system.
