Amazon.com Inc. (AMZN) shares dropped 2.9 percent on Friday after the company reported an ugly earnings miss and disappointing guidance. Amazon reported third-quarter adjusted earnings per share (EPS) of $6.12 on revenue of $110.8 billion. Both numbers missed consensus analyst estimates of $8.92 and $111.6 billion, respectively. Revenue was up 15 percent from a year ago. Amazon reported online sales were up 3 percent to $49.9 billion, while physical store revenue increased 13 percent to $4.27 billion. Amazon Web Services (AWS) revenue was up 39 percent to $16.11 billion, beating analyst estimates of $15.48 billion. Looking ahead, Amazon guided for fourth-quarter revenue of between $130 billion and $140 billion, again missing consensus analyst estimates of $142.1 billion. The company said it expects to take a $4 billion hit from labor costs, inflation and warehouse productivity headwinds. Margin Pressures Morgan Stanley analyst Brian Nowak said labor costs, inefficiencies, and content spending …