In the context of Keynesian economics, how does discretionary fiscal policy, specifically through taxation adjustments, aim to alleviate the effects of a recession?

In Keynesian economics, discretionary fiscal policy involves the government actively changing its spending and tax policies to influence the economy. During a recession, when people have less money to spend, the government can lower taxes to give individuals and businesses more disposable income. This extra money encourages people to spend, which can help boost demand for goods and services, leading to more jobs and economic activity. For example, if the government reduces income tax, families may have more cash to buy things like groceries or cars, which can help businesses recover. By increasing overall spending in this way, the government aims to reduce the severity of the recession and promote a quicker economic recovery.