Kuwait named Amir's son as prime minister on Sunday, replacing caretaker premier Shaikh Sabah Al Khalid who faced a combative parliament amid a feud between the government and elected assembly that has hindered fiscal reform.
Crown Prince Shaikh Meshal Al Ahmad Al Sabah, who took over most of the ruling Amir's duties late last year, named Shaikh Ahmad Nawaf Al Sabah to the post in a decree and asked him to propose a new cabinet for approval.
Last month the crown prince said he was dissolving parliament and would issue a decree for early elections, a move welcomed by opposition lawmakers who had staged a sit-in to press the prince to name a new prime minister.
Political stability in Kuwait, a US-allied OPEC oil producer, has traditionally hinged on co-operation between the government and parliament.
Shaikh Ahmad was deputy prime minister and interior minister in the outgoing government, which had submitted its resignation in April ahead of a non-co-operation motion in parliament against Shaikh Sabah, who had been premier since late 2019.
Shaikh Ahmad, in his late 60s, began his career with the police force and then entered the interior ministry. After his father Amir Shaikh Nawaf Al Ahmad took power in 2020 he was appointed deputy head of the National Guard.
He was named interior minister, and a deputy prime minister, in March after his predecessor resigned, along with the then-defence minister, in protest over "arbitrary" questioning of ministers by the elected parliament.
Kuwait's legislature has the power to pass and block laws, question ministers and submit no-confidence motions against senior government officials.
The deadlock between government and parliament in Kuwait, which bans political parties, has often led to cabinet reshuffles and dissolutions of the legislature over the decades, hampering investment and reforms.