Answer:
reducing his efforts on future projects
Explanation:
Since Matt's efforts are not being recognized, he didn't get a bonus or a recognition, then why should he continue to perform well. If the corporation is going to treat him bad, then he has no reason to perform well, only good enough to keep his current job.
The equity theory states that a balance must exist between an employees efforts and the organization's reward system. If the relationship between an employee and the organization is not balanced, then the relationship will deteriorate and eventually a balance will be reached. Either the employee will not continue to do a good job (Matt's case) or the organization will end up firing the employee (if the employee fails to perform properly).