You have recently been appointed as the executive director responsible for the purchasing function at Pick'n'Pay, which is one of the leading supermarkets in South Africa and other African countries. You notice that there are no documents that outline the roles and responsibilities of the buyer as well as the criteria that is used to select suppliers.

Describe the below roles and responsibilities of the buyer. Include the use of examples to support your write up.

1.Doing price /cost analysis

2. Doing market Research

3.Maintaining and improving Quality

4. Developing contracts and negotiating with suppliers

5.Improving the organisation's competitive position