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GDP (Y) is the sum of consumption (C), investment (I), government expenditures (G) and net exports (X − M). Y = C + I + G + (X − M) Here is a description of each GDP component: C (consumption) is normally the largest GDP component in the economy, consisting of private expenditures in the economy (household final consumption expenditure).
GDP (Y) is the sum of consumption (C), investment (I), government spending (G) and net exports (X – M). Y = C + I + G + (X − M) [7] Here is a description of each GDP component: C (consumption) [8] is normally the largest GDP component in the economy, consisting of private (household final consumption expenditure) in the economy.
where Y represents national income or GDP, C is consumption, I is investment, G is government spending and X–M stands for net exports. This represents GDP because all the production in an economy (the left hand side of the equation) is used as consumption ( C ), investment ( I ), government spending ( G ), and goods that are exported in ...
The net exports is the part of GDP which is not consumed by domestic demand: N X = Y − ( C + I + G ) = Y − Domestic demand {\displaystyle NX=Y-(C+I+G)=Y-{\text{Domestic demand}}} If we transform the identity for net exports by subtracting consumption, investment and government spending we get the national accounts identity:
A variety of measures of national income and output are used in economics to estimate total economic activity in a country or region, including gross domestic product (GDP), Gross national income (GNI), net national income (NNI), and adjusted national income (NNI adjusted for natural resource depletion – also called as NNI at factor cost).
For example, if an increase in German government spending by €100, with no change in tax rates, causes German GDP to increase by €150, then the spending multiplier is 1.5. Other types of fiscal multipliers can also be calculated, like multipliers that describe the effects of changing taxes (such as lump-sum taxes or proportional taxes ).
where Y is GDP (production; equivalently, income), C is consumption spending, I is private investment spending, G is government spending on goods and services, X is exports and M is imports (so X – M is net exports). Another perspective on the national income accounting is to note that households can allocate total income (Y) to the following ...
Conversely, if the debt level is 300% of GDP and 1% of loans are not repaid, this impacts GDP by 1% of 300% = 3% of GDP, which is significant: a change of this magnitude will generally cause a recession. Similarly, changes in the repayment rate (debtors paying down their debts) impact aggregate demand in proportion to the level of debt.