The federal funds rate is the interest rate paid when

Are only tangible goods are scarce ?

What is the role of judicial review in american government? it provides the executive and legislative branches with another check on the powers of the judicial branch. it allows the federal courts to review proposed legislation and possible executive actions for potential issues. it invalidates the election of any federal or state official who cannot demonstrate acceptable knowledge of the constitution. it interprets the vague language of the constitution, which allows the document to survive changes in society.

Why is economics called a study of scarcity and choice?