Public corporations are set up by an Act of Parliament. This means that the legislative arm of government is responsible for creating the legal framework for the establishment, structure, and operation of public corporations. The Act provides the guidelines and objectives for the corporation, including its powers and limitations. The government may also appoint a board of directors to oversee the operations of the corporation, but the ultimate authority and responsibility lie with the Parliament that established it. The establishment of public corporations aims to provide essential services or perform specific functions on behalf of the government or society as a whole.