Comment on Ask HN: How much difference does it make today by pricing $*.99parentComments−schrodingersCat13yThis is apparently a subject of debate (see: http://skeptics.stackexchange.com/questions/2359/the-origin-...)Most sources agree that its origins are in psychology, though your theory may explain its widespread adoption by retailers:http://www.helium.com/items/705308-the-history-of-odd-retail...http://www.eurekalert.org/pub_releases/2011-09/ru-9pm090611....
Comments
This is apparently a subject of debate (see: http://skeptics.stackexchange.com/questions/2359/the-origin-...)
Most sources agree that its origins are in psychology, though your theory may explain its widespread adoption by retailers:
http://www.helium.com/items/705308-the-history-of-odd-retail...
http://www.eurekalert.org/pub_releases/2011-09/ru-9pm090611....