Nomura continues to express concern (previously) over Amazon's (AMZN -0.2%) low margins, and...

Nomura continues to express concern (previously) over Amazon's (AMZN -0.2%) low margins, and notes the company's inventory turnover has "fallen to new historical troughs." Moreover, the firm expects Amazon's growing dependence on Electronics & General Merchandise (EGM) sales, which it expects to account for 83% of revenue in 2016 (up from 62% in 2011), to lead to continuing margin pressure. Can Kiva's robots help prove skeptics wrong?