this form of government is exercised by a head of government elected by popular vote, whose duration in office is four years and with the possibility of consecutive re-election for a single period. along with the head of government there is also the figure of the deputy head of government, who is also elected by popular vote with the same periods as the head of government and whose function is to temporarily assume command of the executive power in case of absence, or definitively in case of acephaly.