1 ããã¥ãªããªã¼ã ã®æ³¢ã«ä¹ãGoogleã¨Facebookãåºç¨¿å ã¨ãã¦ç¢ºå®ã«æ¼ããã Chapter 1ãæºåã¨è¨ç»ãç°å¢ãç¥ããæåãå®ç¾©ãã æ¤ç´¢ãµã¼ãã¹ã¨SNSã®éã§ããGoogleã¨Facebookã¯ããããåºåã«ããã¦ãæ¯é çãªå°ä½ã«ããã¾ããç±³å½ã«ãããè¿å¹´ã®ãããåºåå¸å ´ãããéç¨ã«ããã£ã¦ã®åæãèãã¾ãã ãããåºåå¸å ´ã®æé·ã®ã»ã¨ãã©ã2社ãæ ãããã¥ãªããªã¼ãï¼Duopolyï¼ããåãã§ããï¼ãæåãªãã¼ãã²ã¼ã ãã¢ãããªã¼ãï¼Monopolyï¼ã¯ãç¬å ããæå³ãã¾ãããããããã¥ãªï¼2ã¤ã«ãããè¤å ããæå³ããè¨èã§ãã 2015å¹´ãããããç±³å½ã®ãããåºåå¸å ´ã¯Googleã¨Facebookã®2社ã«ããäºå®ä¸ã®è¤å ç¶æ ã«ããã¾ãã2015å¹´ãã2016å¹´ã«ããã売ä¸é«æ¨ç§»ã«æ³¨ç®ããã¨ãå¸å ´å ¨ä½ã®ç´å¢é¡ã§ãã129åãã«ã®ãã¡ã®89%ãå®ã«9å²å¼±ãGoogle
{{#tags}}- {{label}}
{{/tags}}