Cumberlands Self Efficacy Theory and Reinforcement Theory Paper

In the Discussion Forum type a 600-word (minimum) paper about the Chapter 7. What is your understanding of the material covered? Also address in your own words:

Describe the three key elements of motivation
Demonstrate the differences among self-efficacy theory, reinforcement theory, equity theory, and expectancy theory.
Identify the implications of employee job engagement for managers
Describe hoe the contemporary theories of motivation complement one another

Please cover the questions above in the discussion. Need to write the discussion in APA format, references need to be added and citation needs to add.