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Here, we define S as National savings (= savings of private sector + savings of government) and rewrite the identity as following: = This identity implies that the difference of national savings and national investment is equal to current account. [2] [3] [4]
Discretionary income is disposable income (after-tax income), minus all payments that are necessary to meet current bills. It is total personal income after subtracting taxes and minimal survival expenses (such as food, medicine, rent or mortgage, utilities, insurance, transportation, property maintenance, child support, etc.) to maintain a certain standard of living. [7]
In the general equilibrium model savings must equal investment for the economy to clear. [2] The economy grows as division of labor increases productivity of laborers. This increased productivity in laborers creates a surplus that will be split between capitalists’ expenditure on goods for themselves and investment in other capital. [5]
The IS curve also represents the equilibria where total private investment equals total saving, with saving equal to consumer saving plus government saving (the budget surplus) plus foreign saving (the trade surplus). The level of real GDP (Y) is determined along this line for each interest rate. Every level of the real interest rate will ...
Savings accounts can help you to set aside money for short and long-term financial goals. One of the biggest questions you might have when deciding where to save centers on how much interest you ...
(Y − T + TR) is disposable income whereas (Y − T + TR − C) is private saving. Public saving, also known as the budget surplus, is the term (T − G − TR), which is government revenue through taxes, minus government expenditures on goods and services, minus transfers. Thus we have that private plus public saving equals investment.
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The end result is a magnified, multiplied change in aggregate production initially triggered by the change in investment, but amplified by the change in consumption i.e. the initial investment multiplied by the consumption coefficient (Marginal Propensity to consume).