Equilibrium expenditure is the level of aggregate expenditure at which
A) aggregate production equals real GDP.
B) aggregate actual expenditure equals real GDP.
C) aggregate planned expenditure equals real GDP.
D) aggregate private expenditure equals real GDP.
E) planned inventory investment equals zero.
The correct answer and explanation is :
The correct answer is:
C) aggregate planned expenditure equals real GDP.
Explanation:
Equilibrium expenditure refers to the level of economic activity where total spending in the economy, or aggregate expenditure, aligns with the economy’s total output, or real GDP. In simpler terms, it’s the point where the amount of goods and services being produced equals the amount of goods and services being purchased.
Let’s break down the components of the answer options:
- Option A: “aggregate production equals real GDP” – While this might sound similar, this is not the definition of equilibrium expenditure. Aggregate production refers to the total output in the economy, but real GDP is the value of all final goods and services produced. In equilibrium, the total output is not merely equal to real GDP but rather to aggregate expenditure (planned spending).
- Option B: “aggregate actual expenditure equals real GDP” – Actual expenditure refers to the amount of spending that has actually occurred in the economy, including both planned and unplanned (e.g., changes in inventory). However, equilibrium expenditure focuses on planned expenditure, not actual expenditure.
- Option C: “aggregate planned expenditure equals real GDP” – This is the correct definition of equilibrium expenditure. It occurs when total planned spending (consumer spending, investment, government expenditure, and net exports) equals the economy’s output, or real GDP. At this point, there is no unplanned inventory buildup or reduction, and the economy is in balance.
- Option D: “aggregate private expenditure equals real GDP” – Aggregate private expenditure represents the spending by households and businesses but ignores the government and foreign sectors. Equilibrium expenditure involves all sectors of the economy, not just private spending.
- Option E: “planned inventory investment equals zero” – This option is related but not directly the definition of equilibrium expenditure. In equilibrium, firms plan to produce exactly what consumers, the government, and other sectors are planning to purchase, meaning there’s no unplanned inventory accumulation or reduction. While this condition holds true in equilibrium, it’s a consequence of planned expenditure matching real GDP rather than the definition itself.
Thus, C is the correct choice because equilibrium expenditure occurs when planned spending aligns exactly with the economy’s output, ensuring that all goods produced are purchased and there is no unintended inventory buildup or reduction.