The following provides data for an economy in a certain year. Consumption expenditures $50 Imports $40 Government purchases of goods and services $20 Construction of new homes and apartments $30 Sales of existing homes and apartments $40 Exports $50 Government payments to retirees $10 Household purchases of durable goods $20 Beginning-of-year inventory $10 End-of-year inventory $20 Business fixed investment $30 Given the data, compute the value of GDP.

$150

Explanation:

The formula to compute the GDP is as follows

GDP = Consumption + Investment + Government purchase + Net exports

where,

Consumption = Consumption of expenditure = $50

Investment = Business fixed investment + change in inventory + construction of new homes & apartments

= $30 + $10 + $30

= $70

The change in inventory is

= Ending inventory - beginning inventory

= $20 - $10

= $10

Government purchase = Government purchases of goods and services = $20

Net exports

= Exports - imports

= $50 - $40

= $10

So the value of GDP is

= $50 + $70 + $20 + $10

= $150

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