The government in a parliamentary (or semi-presidential) democracy refers to the prime minister and the other cabinet ministers, whereas the government in a presidential democracy refers to the president's cabinet. The members of the government cabinet determine national policy and arguably hold the most important political positions in their country. Most governments comprise two or more parties, which means that the government formation process requires coalition-building. During this process, party elites bargain over who gets which ministerial position and over policy; they can reach an agreement quickly and take office, or the bargaining can break down and take months to resolve. This essay discusses the different types of governments that can form as well as how they form in parliamentary, semi-presidential, and presidential regimes. Recent research on government formation and cabinets has introduced new theoretical arguments, and the implications of these arguments are being tested with new data and new statistical methods. For example, analyses of European democracies now include the post-communist Eastern countries (not only the Western ones), and more scholars are studying coalition governments in Latin America. Future research might include more work on cabinets in developing democracies in regions such as Africa and Asia, as well as analyses of the political and economic consequences of bargaining delays and the partisan composition of the government.