The symptoms of amphetamine-induced psychiatric disorders can be differentiated from those of related primary psychiatric disorders by time. If symptoms do not resolve within 2 weeks after the amphetamines are discontinued, a primary psychiatric disorder should be suspected.
Monetary policy is the process by which the monetary authority of a country controls the supply of money, often targeting an inflation rate or interest rate to ensure price stability and general trust in the currency.
1 Tax policy: The taxes used to collect government income. 2  Government spending on just about any area of government. 3  Monetary policy controls the value of currency by lowering the supply of money to control inflation and raising it to stimulate economic growth.