The section titled "Policymakers Must Use Fiscal Stimulus in a Recession" points to empirical

evidence indicating that in recessions discretionary fiscal policy can be effective at stimulating

aggregate demand if the interest rate is low and the central bank does not counter the fiscal expansion

by monetary tightening. Why is fiscal policy more effective in such a situation compared to other

conditions? Please use the IS-LM framework to explain your answer.

here is the link for the article

https://www.cbpp.org/research/economy/fiscal-stimulus-needed-to-fight-recessions