Costco Wholesale Corporationin discussion

Please respond to the below questions. 

1. What external threats and opportunities have a potential impact on Costco?

2. Describe the business model of Costco. What distinctive competencies does it employ to obtain competitive advantage?

3. What does Costco do at the business level to execute its strategy?

4. How does Costco’s HR strategy fit into the picture?

5. How does this Costco distinguish itself from rivals?

6. How secure is Costco’s competitive position?