How does the information in the listening passage add to the information in the reading passage?

The equity Theory
the equity theory of employee satisfaction in business focuses on comparision between employwws; the basis of this theory is that workers in organization evaluate their treatment by the organization by comparing their treatment to the treatment of the other workers in the organization. according to this theory, workers evaluate their return for contribution, what they contribute to the company and what they receive in return for it, and compare their return for contribution to what other employees contribute and receive in return. a worker who receives a return of contribution that is equal to or greater than the return for contribution of other employees will be content, while a worker whose return for contribution is less will not be content.