An increase in autonomous government purchases by 2 billion will increase output by 2 billion i

step 1 If government spending increases and autonomous tightening occurs, what will happen to the aggre

An increase in autonomous government purchases by 2 billion...

Key Concepts

Simple Keynesian Model

The Simple Keynesian Model focuses on the determination of output (income) in the economy through aggregate demand. In this framework, factors such as consumption, investment, and government spending play key roles in influencing overall economic activity. The model assumes price rigidity, meaning that prices do not clear markets immediately, so changes in spending directly affect output levels.

Autonomous Spending

Autonomous spending refers to expenditures that occur irrespective of the current level of income. In the context of government consumption, these are decisions on spending that are made independently of the economic conditions. This component of aggregate demand is vital because changes in autonomous spending trigger reactions throughout the economy without being offset by changes in income.

Multiplier Effect

The multiplier effect is the process by which an initial change in autonomous spending, such as an increase in government purchases, leads to a larger overall increase in output. This arises because the initial spending injection increases incomes, which in turn increases further consumption, thereby magnifying the initial impact through successive rounds of spending.

Marginal Propensity to Consume (MPC)

The Marginal Propensity to Consume (MPC) represents the proportion of additional income that households are likely to spend rather than save. It is a key determinant of the size of the multiplier in the Simple Keynesian Model. A higher MPC implies that a larger fraction of additional income is spent, thus amplifying the multiplier effect and leading to a greater overall increase in output for any change in autonomous spending.

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