ä»äºãåŸãæ©äŒã¯ããé ã瀟äŒçã€ãªããããã©ãã ãæã£ãŠãããããéµãšãªããšèšãããŠããŸãã
ãŸãã瀟äŒçµæžçãªè±ããã¯ãã©ãã ãå€æ§ãªäººã ãšé£çµ¡ããšã£ãŠããããšããããšãšçžé¢ããŠãããšããç 究ææãçºè¡šãããŠããŸãã
以åããéæã¡ã«ãªãç¹åŸŽã«ã€ããŠè§£èª¬ãããããŸããã
ããã§ã¯ããéæã¡ã®ç¹åŸŽãšããŠã
ç¹åŸŽ1ïŒãéæã¡ã¯ãéã奜ãïŒ
ç¹åŸŽ2ïŒãéæã¡ã¯ãªã¹ã¯ãæãããªãïŒ
ç¹åŸŽ3ïŒãéæã¡ã¯éèã«è©³ããïŒ
ãšçŽ¹ä»ããŠããŸãã
ãããã瀟äŒçµæžçãªæå³ã§ã®å¹žçŠã¯ãä»äºã«å±ãã ããè¯ã倧åŠã«è¡ãããšããããã©ãã ãå€æ§ãªäººã ã®é£çµ¡å ãç¥ã£ãŠãããã§æ±ºãŸããšãèšãããŠããŸãã
ã€ãŸãã幞çŠã«ãªãã«ã¯ã人éé¢ä¿ã¯äžçªéèŠãšããããšã§ãã
ãScienceãèªã«çºè¡šãããè«æã«ãããšãå€æ§ãªäººã ãšé¢ä¿ãç¯ãããšããééçæåãããããå°ãªããšã1ã€ã®èŠå ã«ãªã£ãŠããå¯èœæ§ãããã¿ããã§ãã
ãã®ç 究ã¯ãã€ã®ãªã¹ã®é信網ããåéããããŒã¿ãšãçµæžçè±ããã®ææšãçµã¿åãããŠåæãããã®ã§ãã
LTVãç解ããããšã¯ãå¹æçãªããŒã±ãã£ã³ã°æŠç¥ãç«ãŠãäžã§éèŠã§ãããã®èšäºã§ã¯ãLTVã®åºæ¬çãªæŠå¿µãåå¿è åãã«è§£èª¬ããŸãã
é ã瀟äŒçãªç¹ããããä»äºãåŸã
1969幎ã«å€§åŠé¢çã®Mark Granovetteræ°ãè¡ã£ãã人ã ãããŸä»äºãã©ããã£ãŠåŸãããã«ã€ããŠã®ç 究ã«ãããšãä»äºã¯è¿ããå人ã®çŽ¹ä»ã§ã¯ãªããç¥äººãå人ã®å人ãšãã£ããé ã瀟äŒçã€ãªãããããåŸããã®ã ã£ããé ã瀟äŒçã€ãªããã¯ãæ°ããæ å ±ãç°å¢ã«çµã³ã€ããŠããããšããæå³ã§ãä»äºãèŠã€ããã®ã«æåã®ããã ã
ãããããã®ç€ºåã«ã¯åé¡ç¹ãããã
ããã¯ãé«åå ¥ã®ä»äºã人éã®äº€æµç¯å²ãåºããã®ãããããã¯é«åå ¥ã®äººéã®ã»ããåçŽã«å人ãäœããããã®ããå æé¢ä¿ã確å®ããããšã¯ãŸãäžå¯èœãšããç¹ã ã
ã©ã¡ãã«ãããç°å¢ã«æµãŸãã人éã®æ¹ãããã¯ããéæã¡ã«ã¯ãªããããã
å€æ§ãªãããã¯ãŒã¯ãæ§ç¯ããæ¹æ³ïœãéæã¡ãšäººè
å€ãã®äººã®ãã£ãªã¢ã«ãšã£ãŠãããã¯ãŒã¯ã¯éèŠã§ãã
ããããã©ã®ãããã®é »åºŠã§ãããã¯ãŒã¯ãåæãããããã¯ãé©åãªåéãè·æ¥ã®é©åãªäººã ãšã©ã®ããã«ããŠãããã¯ãŒã¯ãæ°ã¥ãã°è¯ãã®ã§ããããïŒ
ãã€ããŒã·ãã£ãšã€ã³ã¯ã«ãŒãžã§ã³ã®ããžãã¹ã±ãŒã¹ã¯ãå€æ§æ§ããšã¯ã€ãã£ãã€ã³ã¯ã«ãŒãžã§ã³ãéèŠããçµç¹ã«ãšã£ãŠãããå€ãã®ã€ãããŒã·ã§ã³ãšç«¶äºäžã®åªäœæ§ãããããããšã蚌æãããŠããŸãã
æ£çŽãæã
ã®ã»ãšãã©ã¯ããããã¯ãŒã¯ã®æ§ç¯ã«é¢ããŠã¯ããŸãæŠç¥çã§ã¯ãããŸããã
å€ãã®å Žåããããã¯ãŒã¯ã¯å¶ç¶çºçããŸãããã®çµæããã£ãªã¢ã®ã©ã€ããµã€ã¯ã«å
šäœã§åœ¹ç«ã€å¯èœæ§ã®ããã€ãªãããèŠéããŠããå¯èœæ§ããããŸãã
ãŸãã次äžä»£ã®ãªãŒããŒãæ¯æŽãã責任ãæã ã«ã¯ãããŸãã次äžä»£ã®ãªãŒããŒã¯ãæã®äººã ã®ããã«ç»äžããããã人ã§ã¯ãªããªã£ãŠããŠããŸããã€ãŸããå€æ§ã§å æ¬çãªå°é家ãããã¯ãŒã¯ãæã€ããšãããããŸã§ä»¥äžã«éèŠã«ãªã£ãŠããã®ã§ãã
æå³ãéèŠïœäººèãäœãæ¹æ³
å€ãã®äººã¯ãæåã®å°éçãªä»äºã«å°±ãåã«ããããã¯ãŒã¯ãæ§ç¯ããããšããŸãã
åŠæ ¡ã以åã®ä»äºãªã©ã§ãã§ã«ç¥ã£ãŠãã人ã«åºã¥ããŠããããã¯ãŒã¯ãåçŽã«æ§ç¯ããæ¹ãç°¡åã«èŠããŸããããã
ããããããã¯æŠç¥çã§ã¯ãªãäžã«ãæµ
ããããã¯ãŒã¯ã«ãããªããªããšããçœ ã«ããã£ãŠããŸãã®ã§ããã®ã¢ãããŒãã¯é¿ããŠãã ããã
ããæŠç¥çã«ãããã¯ãŒã¯ãæ§ç¯ããããã«ã¯ããªãã€ãªããããã®ãããããŠèª°ãšã€ãªããã誰ãšæ°ããé¢ä¿ãç¯ããã«ã€ããŠæå³çã§ãªããã°ãªããŸããã
ãã®å Žãã®ãã®ãããã¯ãŒã¯ãæ§ç¯ãããšã瀟äŒçµæžçå°äœãæ§å¥ã人皮ãæåãæè²ã®ç¹ã§ç§ãã¡ãšåããããªäººã ã§æ§æããããããã¯ãŒã¯ã«ãªã£ãŠããŸãããšããããããŸãã
ãããã¯ãŒã¯ã®æ§ç¯ãæå³çã«è¡ãå Žåã¯ãããã¯ã°ã©ãŠã³ãã«é¢ä¿ãªããæçã§ããããšã蚌æããããããªè²Žéãªã¹ãã«ãæŽå¯ããŸãã¯ææãæã£ãŠãã人ãæ¢ããŸãã
æè¿ã§ã¯ãWeb ãæ¶ãæ©ãšããŠäœ¿çšããããšã§ã人ãç¹ããããšãéåžžã«ç°¡åã«ãªããŸãããããã«ãããå¿ãåãããã仲éãååãè¶ ããŠåºããæ°ããæ¥ç¶ãäœæããããšãã§ããŸãã
èªåã®ãããã¯ãŒã¯ãç£æ»ãã
ãã°ãã瀟äŒäººããã£ãŠããã°ãèªç¶ã«ãããã¯ãŒã¯ã確ç«ããŠããã§ãããã
ããããã©ã®ãããã®é »åºŠã§ãããã¯ãŒã¯ãããã®è©³çŽ°ãªç£æ»ãè¡ãã®ã§ããããïŒ
å®éã«èªåã®ãããã¯ãŒã¯ã客芳çã«èª¿ã¹ãŠãèªåãšåãããã«äžçãèŠãŠããããèªåãšåãããã«èããããäœãã§ããå Žæã«äœãã§ãã人ãäœäººããããç¹å®ãã人ã¯ã©ããããããã§ããããïŒ
ãããã¯ãŒã¯ã®ç£æ»ã«ããã»ã©æéããããå¿ èŠã¯ãããŸãããç§ãã¡ã®ãããã¯ãŒã¯ã«èª°ãå«ãŸããŠãããã«ã€ããŠæ±ºå®çãªã¢ã€ãã¢ãåŸãããããç§ãã¡ã®ãã£ãªã¢ç®æšãšäžèŽããç¥èãã¹ãã«ãæã€å€æ§ãªäººã ãæ¢ãåºãããšã§ãæŠç¥çã«ããã匷åããããšãå¯èœã§ãã
ããŸããŸãªã³ãã¥ããã£ã«æ¥ç¶ãã
ç¹ã«å åçãªäººã«ãšã£ãŠããããã¯ãŒãã³ã°ã¯éªšã®æããäœæ¥ã«ãªãå¯èœæ§ããããŸãããææ°æ å ±ãææ¡ããææ°ã®ç¶æ ãç¶æããããã«ã¯ããããã¯ãŒãã³ã°ãè¡ãå¿ èŠããããŸãã
ããããå¿ ãããçãã³ãã¥ããã£ã«ãšã©ãŸãå¿ èŠã¯ãããŸããã ãããã¯ãŒã¯ãå€§å¹ ã«æ¡å€§ããæ段ãšããŠãããŸããŸãªã³ãã¥ããã£ã«æ¥ç¶ãããšããããšã¯æå¹ãªæ段ã§ãã
ä»ã®åéã®å°éç¥èãæã€äººã
ãæ¢ããŠã¿ãããšã§ãèªåèªèº«ã®èŠéãåºãã£ãŠããããšã§ããããæœåšçãªæ°ããã€ãªããã暡玢ãããšãã¯ãæŠç¥çã«èãããããã¯ãŒã¯ãå¯èœãªéãå€æ§åããããšãæå³çã«è¡ãå¿
èŠããããŸãã
ç¡çãããå¿
èŠã¯ãããŸãããå®æçã«ããåãããæ©äŒããªã人ãæ¢ãã ãã§ããã®ã§ãã
ãŸãšã ãã£ãªã¢ç®æšã«åºã¥ãèšèš
ãããã¯ãŒã¯ãæ§ç¯ãããšãã¯ããã£ãªã¢ã®ç®æšãèæ ®ããŸãããã
ãããã¯ãŒã¯ã¯ãæçµçã«ãªãããå Žæã«å°éã§ããããã«èšèšããå¿ èŠããããŸããæã ã®å°é家ãããã¯ãŒã¯ã匷åãå å®ãããæ¹æ³ã¯ä»ã«ããããããããŸãããä»åã®èšäºã¯ãã®ãã³ãã®äžã€ã«ãªãã°å¹žãã§ãã
ãã1ã€ãã³ããããããšããã°ããããã¯ãŒãã³ã°ã®æéãã¹ã±ãžã¥ãŒã«ããŠããã£ãªã¢ãã©ã³ãšãããã®äžéšã«ããããšã§ããäŸãã°ãé±ã« 1 æéããŸãã¯æã« 1 æéãªã©ããããã¯ãŒãã³ã°ã«è²»ãããã¿ãããªæãã§ãã
ãã²ãè©Šããã ããïŒ
ããã蚌åžäŒç€Ÿæ倧æã®SBI蚌åžã¯ãææ°æã®å®ããšéèååã®è±å¯ãã«å®è©ããããåœå æ ªåŒå人ååŒã·ã§ã¢No.1ã®å®çžŸããããŸãã
ãã®æ©äŒã«ãã²SBI蚌åžå ¬åŒãµã€ãããã§ãã¯ããŠã¿ãŠãã ããã
 æ ªåŒååŒã·ã§ã¢No.1ïŒ ïŒ