Please answer 3 and 6 only

3. Describe the three phases of the evolution of the supply chain concept? 10 4. A number of authors have observed that traditional, hierarchical organisations have changed in the current global economy. How have organisations changed? Why have they changed? What are the impacts of those changes likely to be? 5 5. What is meant by the current description of the global economy that time and distance have been compressed? Do you agree? What has been the impact of this compression? 10 6. Why is customer service and its related strategy so important for companies operating global supply chains? Do you think that customer service is more important than lower cost to the customers? 10