?? ????5?????????????? 200???
????:1???????????:???????
2?????????
3?????????
4????????
5??????????
??????????12?????????21????????????????????? ???????:???????20??????????????????21?????,????????????5??????????,200?????????????
????-?????????????,?????24??????,?????,???,????????????
???????-??????????????????,???,???????????????,?????????,????????
??,??????????????21????,????2?5??,??200??????????,?21????????????????,???????????40????
??????,?????50???????????????????,????Taleb A.,????????,2006???????????????
??????????????,????????????????,?????????????????20???,???????????????????
21????,??????,?????????(?) ????????????:???????