Tón tắt kiến thức kinh tế lượng

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Q ?Ư?ã"Ư?ôũ?ếƯ??\?ÔẩÊM?jừ?ãở?ũ?ử?ấ'Ê?2 ấẫÊ?ã\?Ư*\?ôẩ?M bếƯ?QY?wĂô?oL\ãĂ?Go\H?] ?Ưấ\?Ư?Ưẫ?$?ếƯ??g O M?oL\ãĂ?[ ?ếƯ ?g O M L?sầã?Ưãố?e v?Ơ?ằÂ?Ơ?MMM?Z?Â?] )1kn,1k( f H bếƯ?PY?ỵ? ?? ?Ư?ã"Ư?ôũ?ếƯ??\?ÔẩÊM?jừ?ãở ũ?ử?ấ'Ê?2 ấẫÊ?ã\?Ư*\?ôẩ?M bếƯ?QY?wĂô?oL\ãĂM L?lẩ??2?ấẫÊ?ã\?ởƯ?PY t ?Ơ Mt LP ?J G`qPH j?ừ?ấ'Ê lg S Y?ử?!?2?ấẫÊ?ã\ )U(Var.)U(Var )U,U(Cov 1tt 1tt )U(Var )U,U(Cov t 1tt L?lẩ??2?ấẫÊ?ã\?ởƯ?Q t ?Ơ P Mt LP ?J Q Mt LQ J G`qPH L?sầã?Ưãố?cãLv\ w?ôẩ??`qP 2 i 1tt e ee ?ƠP ?ôẩ??Ư?ử?ấ'Ê?2?ấẫÊ?ã\?ề?ể?ấẫÊ ?P ?? ?O ?Ư ử?ấ'Ê?ấẫÊ?ã\?ấẫÊM ?Ơ LP ?ôẩ??Ư?ử?ấ'Ê?2?ấẫÊ?ã\?ề?ể?ô L P ?? S ?Ư ử?ấ'Ê?ấẫÊ?ã\ ôM ?Ơ?O ?ôẩ? ÔẩÊ Ư?ử?ấ'Ê?2?ấẫÊ?ã\ O ?? Q ÔẩÊ Ư ử?ấ'Ê?ấẫÊ?ã\M ÔF?Ơ?Ô L?P ??\?ểÊ? ?ề? ã M GOK? HY?s2?ấẫÊ?ã\?ấẫÊY G K? ã H?ồƯ?G ã K? 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ĂN?w P K?w Q K?MMM?K?w ÔLP K 2 Y K 3 Y KMMMK m Y Ă ?Ơ O ??J P w P ?J?MMM P w ÔLP K ?J Q 2 i Y J R 3 i Y ?J?MMM ô m i Y Jt ?GQH g O Y?Glẩ??P?ậ,ÊH g P Y?Glẩ??P?\H nkr?GQH 2 2 R v?Ơ?ằ Q ?Ơ?M 2 2 R ?Z Q ?] )1m( 2 H J?sầã?Ưãố?e GxNw P K?w Q K?MMM?K?w ÔLP K 2 Y H Y j?ừ?ấ'Ê lg U x ?Ơ O ??J P w P ?J?MMM P w ÔLP K ?J Ô 2 i Y Jt GRH g O Y?Glẩ??Ê!Ư?ậ,ÊH g P Y?Glẩ??Ê!Ư?\H v ?Ơ?ằ )1kn,1( 2 3 2 1 2 3 ff; )1kn( )R1( 1 )RR( f bM?júô?ậ?ỵ?Ưãố?Ư*\?\?!?Êộã?ầ?Gt ??!?ƯãốH g O Y?Gt ??!?ƯãốH g P Y?Gt ?ÔẩÊ??!?ƯãốH L?sầã?Ưãố Q v?Ơ?ằ Q ?Ơ?MMM?Z Q ?] )2( 2 H nkr?GÊ!ƯH ?ĂM?sỵ?r L?ử?!?ậ!?1Ê?Ư*\?ĂK?j L?ử?!??Ư*\?Ă v?Ơ?ằ Q ?Ơ?sa?Ơ?s\ãĂ?aĂ\?Ơ 24 )3k( 6 S n 22 ?Z Q ?] )1( 2 H cM?júô?ậ?ấẫÊ?\?\?!?\?ậM g O Y?Glẩ??Ư?ấẫÊ?\?\?!?ÔẩÊ?ậH g P Y?Glẩ??Ư?ấẫÊ?\?\?!?\?ậH r/?-Ê ầã?Ưãố Q K?Â?GoL\ãĂ?Ư*\ Q K?ÂH?ậú?Ôúô?ậM \M?júô?ậ?o\Ô u\Gt H?Ơ b ji 2 i X.a r/?-Ê 2 i e \?Ư 2 i vib ji 2 i e.X.ae iji 2 i VXln.balneln Ơ O ?J P M?w ?J?u ???????????GoH g O Y?Glẩ??Ư?ấẫÊ?\?\?!?ÔẩÊ?ậH ?Glẩ??o?ÔẩÊ?Ư?6?Êý\H g P Y?Glẩ??Ư?ấẫÊ?\?\?!?\?ậH ?Glẩ??o?Ư?6?Êý\H M?júô?ậ?fĂĂ Ă ?Ơ O ?J P M w ?J?u i ji 10i V X 1 .e iji10i VX.e i ji 10i V X 1 .e júô?ậ?vĂ i 2 i25 2 i14i2i13i22i110 2 i VXXXXXXe GvH nkr?GvH 2 w R v?Ơ?ằ Q ?Ơ?M 2 w R ?Z Q ?] )1k( 2 w H j?ừ?ấ'Ê lg V júô?ậ?ô-Ư?c 2 i e Ơ O ?J P M 2 i Y ??J?u GcH nkrGcH 2 D R K 1 K?rĂG 1 H L?sầã?Ưãố Q v?Ơ?ằ Q ?Ơ?M 2 D R Z Q ?] )1( 2 H L?sầã?Ưãố?e v?Ơ?ằ )2n,1(ff; (Se f 2 )1 1 bếƯ?Ư0\Y L?ễ?ừ 2 i M?b\?ôẩ??Ê!Ư?Ư 2 i M L?bấ\?ừ 2 i Y J?u\Gt H?Ơ 2 i ?Ơ ji 2 X. 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