Discuss and explain these General Factors Determining Pay Levels:

1. The external value of the job (external relativities): market rates for jobs as influenced by economic factors operating within external labour market

2. The internal value of the job (internal relativities) the comparative value of jobs in the internal labour market as assessed by formal or informal job evaluation processes

3. The value of the person, as assessed by formal or informal appraisal or performance management processes

4. The contribution of the individual or team

5. Pay negotiations with trade unions