There is too much emphasis on party politics, which keeps many important matters other than party interest from receiving adequate attention.
This system undermines the principle of separation of powers as both the executive and the legislature are intertwined.
The cabinet system of government is generally unstable as a defeat of the cabinet in parliament is a defeat of the government. For example, the National Assembly of France defeated twenty-one governments during the Fourth Republic (1946 1958). Similarly, the average life span of Italian governments between 1946 and 1975 was nine months.