The correct answer is:
During Recession Periods.
Fiscal Policy means influencing the economy by using the spending levels and tax rates. Unlike monetary policy which is the one that deals with the bank's influence over a nation's money supply. John Maynard Keynes, an English economist created the Keynesian Theory, meaning economic instability should be corrected with government intervention.
"Keynes recommended that, during periods of recession, the government should increase spending in order to “prime the pump” of the economy. At the same time, he recommended, it should decrease taxes in order to give households more disposable income with which they can buy more products. "