https://www.confiduss.com/en/jurisdictions/aruba/politics/ - Politics of Aruba

In Aruba, the form of government is a unitary parliamentary representative democracy under constitutional monarchy. In Aruba, legislative power rests with the Aruba Estates. The head of government is Willem-Alexander. A country's governmental structure determines the way laws are written, passed and interpreted. The type of government determines the way elections are held as well as the country's system of policing its citizens. The term of office of the head of state in Aruba lasts until the next succession to the throne. The length of a head of state's tenure has a direct bearing on the power and influence of the leadership position. A longer term gives the head of state more authority.

Government
Willem-Alexander is Prime Minister in Aruba. Aruba's system of government is a unitary parliamentary representative democracy under constitutional monarchy. In Aruba, legislative power rests with the Aruba Estates; This is a unicameral legislature and therefore a unicameral state of Aruba. According to the World Bank Group, Aruba's Government Effectiveness Index is 0.86. This shows that the Aruba government is effective. Citizens benefit from well-organized public and civil services and government efficiency is high. Although some services may be lacking in some areas, the overall environment encouraged by state legislation is favorable.