Final answer:
The variable in the job performance equation P = M A E that reflects an employee's desire to do the job well is M (Motivation). Aside from motivation, factors like work content, autonomy, and self-efficacy play significant roles in job satisfaction and performance.
Step-by-step explanation:
In the job performance equation P = M A E, the variable that reflects the employee's desire to do the job well is M (Motivation). Motivation affects how much effort an employee is willing to put into their work, which directly influences their performance. While Ability reflects an individual's competence in performing a job and Environment encompasses the external factors such as workplace culture and resources that can affect job performance, it is Motivation that captures the personal drive and desire to achieve and excel at the job.
When it comes to overall job satisfaction, research has indicated that elements like work content and autonomy can be more strongly predictive factors than just financial rewards. Furthermore, an individual's confidence in their abilities, known as self-efficacy, is also crucial for job performance as it influences how effectively they approach tasks and overcome challenges. Therefore, motivation, along with these other factors, constitutes a complex interplay that determines an employee's job satisfaction and performance.