This excerpt taken from the EQR DEF 14A filed Apr 17, 2006.
Base Salary. The Companys overall salary structure is reviewed annually, using compensation surveys of the real estate industry in general and public real estate companies in particular, as well as other public companies of similar size to the Company, to ensure that it remains competitive. Positions are classified on the basis of assigned responsibilities and on an evaluation of the latest survey information available, as to appropriate compensation levels. Individual base salaries are reviewed at least annually. Salary increases may be granted based on each executives performance as well as such executives position in the applicable salary range.