?? p??te d???µe?? t?? Porter

?ata???ste t?? ??s?a t?? p??te d???µe?? t?? ???te? se µ???? 50 ?ept? µe a?t? t? p?a?t??? ?a? s???pt??? ß?ß???. ?? p??te d???µe?? t?? Porter e??a? ??a µ??t??? p?? e?et??e? t? d?ap?a?µate?t??? d??aµ? t?? pe?at??, t? d?ap?a?µate?t??? d??aµ? t?? p??µ??e?t??, t?? ape??? t?? ?p??at?stat??, t?? ape??? t?? ?e?e?se???µe??? ?a? t?? e?d???ad??? a?ta????sµ?, µe st??? ?a d?se? t? d??at?t?ta st??? ???ste? ?a p??ß?????? t?? t?se?? t?? ???d?? ?a? t?? a??a??? st? a?ta????st??? pe??ß????? p?? µp??e? ?a ap?te??s??? ape??? ?, a?t??eta, ??a e??a???a ??a t?? ep??e???s? t???. ?? ß?ß??? a?t? sa? pa???e? µ?a e????st? e?sa???? sta s?stat??? st???e?a t?? p??te d???µe?? t?? Porter ?a? e???e? p?? ?a ???s?µ?p???sete t? µ??t??? ??a ?a e?t?p?sete ?a? ?a a???????sete t??? a?ta????st?? sa?, ?ste ?a a?apt??ete t?? p?? ap?te?esµat??? st?at????? ?a? ?a µe??st?p???sete t? a?ta????st??? sa? p?e????t?µa. ?e???aµß??e? ep?s?? µ?a p?a?t??? µe??t? pe??pt?s??, p?a?t???? s?µß????? ??a t? ???s? a?t?? t?? a????s?? ?a? µ?a ep??tas? t?? µ??t???? ?ste ?a s?µpe????ße? ??ße???t????? ???a??sµ???. S?et??? µe t?? p??te d???µe?? t?? Porter : ?? ???te ????µe?? t?? Porter, p?? a?apt?????a? t? 1979 ap? t?? ?a????t? t?? ???ßa??t Michael E. Porter, e??a? ??a p???t?µ? e??a?e?? ??a t?? ?ata???s? t?? a?ta????st???? d?µ?? e??? s???e???µ???? ???d??. ?as??eta? st?? pa?at???s? ?t?, ?a??? ??e? ?? ep??e???se?? a?apt?ss??ta? se ??a a?ta????st??? pe??ß?????, ? d?af???p???s? e??a? apa?a?t?t? e?? ?? ep??e???se?? ?????? ?a p??se???s??? ?a? ?a d?at???s??? pe??te? ?a? ?a ap?f????? t?? ap??e?a µe??d??? a?????. Se a?t? t? ß?ß???, ?a a?a?a???ete p?? ?? p??te d???µe?? t?? Porter µp????? ?a ß????s??? t?? ep??e???s? sa?, ?a e?t?p?sete t?? µetaß??t?? p?? ep??e????? t?? ???d? sa? ?a? ?a ???s?µ?p???sete ta e???µat? sa? ??a ?a a?apt??ete ?a? ?a d?at???sete t? a?ta????st??? sa? p?e????t?µa. ??a saf?? e????s? t?? p?e??e?t?µ?t?? ?a? t?? p??a??? µe???e?t?µ?t?? t?? µe??d??, µ?a s???t?s? µ?a? p?a?t???? µe??t?? pe??pt?s?? ?a? µ?a e?sa???? se s??af? µ??t??a sa? d????? ta e??a?e?a p?? ??e???este ??a ?a p??sa?µ?sete t?? p??s????s? sa? st?? pe??pt?s? sa?.