As a unitary state, a state is referred to, in which the state power is usually exercised over the whole country from the capital centralist. A distinction is this, the decentralized unitary state, which has decentralized organs of self-government such as districts or departments, but are overseen centrally.
Unit States, possibly structured by division into administrative districts in independent self-governing bodies, but not in self- government member states such as in the state ( federalism ).
In use today is increasingly the term central government.
As examples of democratic states, political scientist Martin Sebaldt about Costa Rica, Finland, Iceland or Israel called for centralized unitary states. Denmark, France, Great Britain, Ireland, Japan and Luxembourg, and New Zealand, Netherlands, Norway and Sweden, however, are decentralized unitary states.
A " pronounced regionalization" were to be found in Italy and India, which he describes as a regional entity States. For example, Italy has gradually developed through state reforms to a regionalized unitary state, have in the first five regions with special status on self-government, which were extended modified in other regions and under constitutional law. India was merely a " formal union" as their states due to lack of constitutions do not have a state. In addition, the central government could restructure under Articles 3 and 358 of the Federal Constitution, this new, dissolve and take over their government. Moreover, their governors are appointed by the President, and whose tasks may include regulated by the state constitution. As a special case considered Sebaldt Belgium, which although not " legalistic ", but de facto transformed himself from a decentralized unitary state by several state reforms to a confederal state.