標題:
Why GDP=y?
發問:
I am studying macroecon. now, but I just don't why GDP = y? ("y" is income) I understand GDP=C + I + G + X - IM but just don't get why GDP = y? By the way, actually, I don't really understand what does GDP mean, and what it measures? can anyone help me?
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最佳解答:
GDP=C + I + G + X - IM 是 expenditure approach，計出黎是GDP at market price即各「單位」 (個人、政府…) 的消費，是在「市場」錄得的，故曰「market price」 national income (Y) = wage + rent+ profit+ interest是income approach, 即各「生產因素」的回報。理論上，計出黎是GDP at factor cost，即從生產「因素」方向入手 但是市場售價已包括稅和津貼，所以 GDP at factor cost不等於 GDP at market price GDP at market price - tax + subsidy = GDP at factor cost 當GDP at factor cost時，它就等於national income (Y)，但你不可說GDP=C + I + G + X - IM = Y
其他解答:
just assume gdp=y|||||GDP is the total market value of all final goods and services produced in an economy in a one-year period. It can be calculated mainly in two ways: the expenditure method and the income method. This is because of the national income accounting identity. In summary, GDP measures production. One of the most important insights about the aggregate economy is that it is a circular flow in which output and input are interrelated. Households' expenditures (consumption and saving) are firms' income; firms' expenditures (wages, rent, interest, profits) are households' income.
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