The answer on this question depends heavily on the system of governance chosen.
The power of attorney terminates on the death of the principle. At that point the family makes decisions.
If there is a problem with the constitutionally of a law the Supreme Court makes the decision. The president has no power.
1) Each individual person makes his/her own healthcare decisions.2) Parents make the healthcare decisions for their children.3) Whoever has been given 'power of attorney' makes the healthcare decisions for the person they have 'power of attorney' for. They would carry out the persons wishes when 'power of attorney' was handed to someone. (For example: My wife has 'power of attorney' for me in case I am incapacitated in a comma. My basic wishes are stated in the document. My wife knows my feelings, and is under obligation to decide in accordance with my previously expressed and written wishes.)
who makes australia's economic decisions
The British Parliament began as a voice of the people in a monarchical power structure. Today, the monarch has no power and the Parliament makes the decisions.
The front part of the brain makes decisions.
the government makes all the decisions, he is a dictator
who runs the government and makes most decisions
the government makes all the decisions, he is a dictator
When a state has sovereignty, that means it makes its own decisions without consent from a higher power.
Nations have the power to control mostly everything and make most of the decisions. Cities can only control the property the city is in and makes only the decisions of the cities.
In a jury trial, the jury makes decisions of fact, and the judge makes decisions on the law. Neither has any input on the others' decisions.