A1P21165 1
BtoC EC CDDVD 2003 Amazon.com 2
3
BtoC EC 2003 PC EC EC SEMSEO CPC BtoC EC 4 4240 EC 7800 EC 17.6% 1 EC 1700 2002 2 4994 6 3048 8 2001 6 2395 27 ECOMNTT 2001 (BtoC) 80 1.5 1 (8.1) 4
() ) 1999 2001 3 5 DVD ( AV ) PC 2001 2006 13.8 20 5
4 1 / DM 9 44.2 6
6 3 32.3 70.7% 9 7
/ CDDVD 8
9
http://www.ecom.or.jp/ 10
3 99 12 cocodes.co.jp 4000 400 10 20 11
20 24 365 34 1 12
1 2000 2600 15 5 160 5 13
1993 3 1997 5 3 10 2 14
4 2000 15
https://www.askul.co.jp 16
Amazon.com Amazon.com mazon.com 1995 7 1999 4 Amazon.com 1995 16.4 160 1700 1040% Amazon.com 6 17
Amazon.com Amazon.com Discussions E 1 3 1 Amazon.com 1 1 90 1 37 UPS 2 Amazon.com 18
Amazon.com Amazon.com Amazon.com 40 YahooExcite AOLMSN Amazon.com 1998 19
5 Amazon 20
MM MM 2002.5 2020ATM PHP 2001.2 2001.4 ebay 2001.7 2003.2 http://www.ecom.or.jp/ https://www.askul.co.jp http://www.cocodes.co.jp/ http://www.amazon.co.jp 21