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http://blog.westca.com/htsrv/trackback.php/132710

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ÆÀÂÛÔ´×Ô: º£Ó° · http://www.mmmca.com/blog_u4930/index.html
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08-06-30 @ 11:55
ÆÀÂÛÔ´×Ô: Stagflation · http:///htsrv/comment_post.php
congratulation!

08-06-30 @ 13:24
ÆÀÂÛÔ´×Ô: ¼ÓÖÝÓð · http://blog.westca.com/blog_u12986/index.html
Nice Job! Congratulation! Enjoy your holiday!
08-06-30 @ 14:30
ÆÀÂÛÔ´×Ô: ²©¿Í¹ÜÀíÔ± · http://www.mmmca.com/blog_admin/index.html
лл·ÖÏí
08-07-01 @ 01:07
ÆÀÂÛÔ´×Ô: Michael · http:///htsrv/comment_post.php
congratulations! this is a great achievement!

one question: how do you calculate the "risk management" portion of added value? the same as "sector weight"?
08-07-01 @ 12:30
ÆÀÂÛÔ´×Ô: º£Ó° · http://www.mmmca.com/blog_u4930/index.html
risk managementÓ¦¸Ã³ÆÎªrisk exposure management,ÊÇ¿¼ÂÇÔÚÿÌìµÄ¾»·çÏÕ±©Â¶Ë®Æ½ÉÏ£¬¼ÙÉèͶ×Ê×éºÏÓëÊг¡²¨¶¯·ù¶ÈÏ൱£¬¼ÆËãËùµÃµÄÒµ¼¨Óëʵ¼ÊÒµ¼¨Ö®²î£¬¼´Îª¸ö¹ÉÑ¡Ôñ´øÀ´µÄadded value£»È«²¿³¬¶î±íÏÖÓë¸ö¹ÉÑ¡ÔñµÄadded valueÖ®²î£¬¼´Îª·çÏÕ¹ÜÀí´øÀ´µÄadded value¡£

ÕâÊÇÒòΪ£¬Èç¹û¸ö¹ÉÑ¡Ôñ²»´øÀ´added value£¬Í¶×Ê×éºÏ²¨¶¯·ù¶ÈÓ¦¸ÃÓëÊг¡·ù¶ÈÏ൱¡£
08-07-02 @ 14:34
ÆÀÂÛÔ´×Ô: Michael · http:///htsrv/comment_post.php
risk management=(beta-1)*market return? so it evaluate how well your bet on market move. if market goes up, you should take more exposure (beta >1) to get positive added value. if market goes down, you should reduce exposure(beta). Am I correct?
08-07-02 @ 17:13
ÆÀÂÛÔ´×Ô: º£Ó° · http://www.mmmca.com/blog_u4930/index.html
²»Êǵġ£

·ÖΪÁ½²½¡£µÚÒ»²½£¬¼ÙÉè³ÖÓеÄͶ×Ê×éºÏûÓвúÉúadded value£¬¶à¿Õ×éºÏµÄÕǵø·ù¶ÈÓëÊг¡ÍêÈ«Ïàͬ£¬ÄÇô£¬Ã¿ÌìµÄ²¨¶¯ÓÉnet risk exposureÓëÊг¡²¨¶¯Ëù¾ö¶¨¡£Áînet exposure=X, market performance=Y, ÄÇô£¬Í¶×Ê×éºÏµÄÀíÂÛ±íÏÖ=X¡ÁY¡£Èç¹ûʵ¼Ê±íÏÖÓëÀíÂÛ±íÏÖ²»Ò»Ö£¬ÔòÊǸö¹ÉÑ¡ÔñËùÖ¡£Òò´Ë£¬¸ö¹ÉÑ¡Ôñ=×éºÏʵ¼Ê±íÏÖ-X¡ÁY¡£

µÚ¶þ²½£¬²»Äܱ»¸ö¹ÉÑ¡Ôñ½âÊ͵Äadded value¹éÒòÓÚnet risk exposure¡£ÀýÈ磬Èç¹ûÎÒ±£³Ö70%µÄ·çÏÕ±©Â¶£¬´óÅÌϵø1%£¬ÎÒµÄͶ×Ê×éºÏϵø0.5%£»ÄÇô£¬¸ö¹ÉÑ¡Ôñ=0.7¡Á1%-0.5%=0.2%£»·çÏÕ¹ÜÀí=(1%-0.5%)-0.2%=0.3%¡£Ï൱ÓÚ˵£¬ÔÚ´óÅÌϵøÊ±£¬ÎÒ±£³Ö½ÏµÍµÄ·çÏÕ±©Â¶£¨70%£©£¬¿ÉÒÔÁîÎÒµÄËðʧ¼õÉÙµ½0.7%£»¶ø¼®Óɸö¹ÉÑ¡Ôñ£¬Ëðʧ½øÒ»²½¼õСµ½0.5%¡£
08-07-02 @ 17:23
ÆÀÂÛÔ´×Ô: Michael · http:///htsrv/comment_post.php
Ed, I think we are talking about the same thing:


Beta=0.7, risk portion=(0.7-1)*(-1%)=0.3%, if real added value=0.5%, then stock selection(alpha)=0.5%-0.3%=0.2%

(0.7-1)=net risk exposure
08-07-02 @ 19:52
ÆÀÂÛÔ´×Ô: zHuang · http:///htsrv/comment_post.php
·çÏÕ¹ÜÀí= 1 - 70% = 0.3
08-07-03 @ 11:11
ÆÀÂÛÔ´×Ô: º£Ó° · http://www.mmmca.com/blog_u4930/index.html
ÓÐЩ΢ÃîµÄÇø±ð¡£betaÊǼÆËãµÄ²¨¶¯ÂÊÏà¹Ø²ÎÊý£¬net exposureÊÇÒ»¸öÖ±½ÓµÄ¿ØÖƱäÁ¿¡£betaÖµ¿ÉÄÜÒ»¶Îʱ¼ä¶¼ÊÇÎȶ¨µÄ£¬Ò²²»ÊÇÎÒ¿ÉÒÔÖ±½Ó¿ØÖƵ컵«net exposureÊÇÎÒÖ±½Ó¿ØÖƵġ£

ÔÚÒÔÉϵÄÊý×ÖÀý×ÓÖУ¬½á¹ûÏàͬ£»µ«ÓÐЩʱºò£¬ÎÒµÄnet exposure¿ÉÒÔµÍÖÁ0.2£¬¶ø×ÜÌå¶øÑÔµÄbetaÖµ¿ÉÄÜÈÔÈ»±£³ÖÔÚ0.7×óÓÒ¡£

×ÜÖ®£¬ÊÇ񻂿·Ö²Öλ¿ØÖÆÓë¸ö¹ÉÑ¡Ôñ¸÷×ԵűÏ×ÂÊ¡£
08-07-03 @ 12:51
ÆÀÂÛÔ´×Ô: Michael · http:///htsrv/comment_post.php
Thanks for your explanation.
08-07-03 @ 13:27
×£ºØ×£ºØ°¡£¬ÐÜÊÐÀï²ÅÄÜ¿´³öÕæÕýµÄͶ×ʹ¦·ò°¡¡£
08-07-04 @ 18:22

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