Professor Erik Brynjolfsson of the Massachusetts Institute of Technology has shown that the reason is not predominantly lower prices. Rather it is the variety of books that Amazon sells,

Ari Brynjolfsson has written:

'Some aspects of the interactions of fast charged particles with matter' -- subject(s): Collisions (Nuclear physics)

'Energy and food irradiation' -- subject(s): Food, Irradiated foods, Preservation

Erik Segerstedt goes by Snygg-Erik, and Idol-Erik.

Erik Bartik's birth name is Erik Alexander Bartik.

Erik