Thus, term limits impede professionalization, automatically locking out experienced (and effective) legislators and diminishing MPs’ motivation and need to develop expertise on specific issues. To the extent that prohibiting the re-election of parliamentarians involves the risk that the legislative branch of power be dominated by inexperienced politicians, this may lead to increase the imbalance in favour of the executive, even if the head of state and possibly ministers are not re-eligible, since the executive is assisted by a permanent public service.