Answer to Question 1
Virtual merchants are single-channel e-commerce firms that generate almost all their revenue from online sales. They face a number of challenges. They must build a business and brand name from scratch quickly, and face many virtual merchant competitors. They also face large costs in building and maintaining an e-commerce presence, building an order fulfillment infrastructure, and developing a brand name. Customer acquisition costs are high, and the learning curve is steep. Facing low margins, virtual merchants must achieve highly efficient operations to preserve a profit, while building a brand name quickly to attract sufficient customers to cover their costs of operations. Most merchants in this category adopt low-cost and convenience strategies, coupled with extremely effective and efficient fulfillment processes to ensure customers receive what they ordered as quickly as possible.
Answer to Question 2
In 2016, Amazon finally began to show investors and analysts sustainable profitability. Following up on its 596 million profit for 2015, the company reported a landmark 879 million profit in the second quarter of 2016, up from just a 92 million profit over the same period in 2015. The profitability of its AWS unit is also a major positive for Amazon, with that segment showing continued rapid growth. Amazon Prime is also a key component of the company's strong performance. While the company continues to spend heavily on future products and services, Amazon at last appears to have turned the corner to profitability.
Eye Model
Model for cleavage and polyadenylation of pre-mRNAs in mammalian cells
Power in the United States: The Model Proposed by C. Wright Mills
The Weather Business: A Brief Overview
Ethical Decision-Making Model
Generalized model of semiconservative replication of DNA