Amazon's 34 private label brands could add a billion dollar boost to its business (AMZN)

Amazon's nascent effort to sell products that carry its own brands could give its business a huge windfall. The e-commerce giant offers everything from burgers to beauty products under its collection of 34 private-label brands. Combined, sales of those products could add $1 billion to its gross profit by 2019, Morgan Stanley analyst Brian Nowak said in a research note issued Tuesday. Gross profit is the difference between the retail price a company charges customers for its products...