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4­Ó components of final spending §Y¬O¡GC ( consumption expenditure, ®ø¶O), I(private domestic investment, §ë¸ê), G ( government purchases of goods and services, ¬F©²¤ä¥X) »P NX ( net exports, ²b¥X¤f)¡C°ÑŪ½Ò¥» Section 4 ( pp. 32-35 ) ¤Î p. 36 ¤U­±³Ì«á¤@¬q¡C

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(1)  ¦b E = C + I + G + NX ¤½¦¡¤¤ªº I ¬O§ë¸ê¤òÃB ( gross investment )¡C°Ñ¦Ò½Ò¥» pp. 32-33 ªº»¡©ú¡G

           I = Fixed investment + Inventory investment

             = ( Net fixed investment + Depreciation ) + Inventory change

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