of Internal Revenue Code Section 162(m). Subject to the Section 162(m) limitation, the bonuses are funded from a pool based on the achievement of three financial metrics, including adjusted diluted earnings per share, which is derived from Adjusted income. Beginning in 2011, this metric accounts for 40% of the bonus pool made available to ELT members and other members of senior management and will constitute a factor in determining each of these individual’s bonus.

Despite the importance of this measure to management in goal setting and performance measurement, we stress that Adjusted income is a non-GAAP financial measure that has no standardized meaning prescribed by U.S. GAAP and, therefore, has limits in its usefulness to investors. Because of its non-standardized definition, Adjusted income (unlike U.S. GAAP net income) may not be comparable to the calculation of similar measures of other companies. Adjusted income is presented solely to permit investors to more fully understand how management assesses performance.

We also recognize that, as an internal measure of performance, the Adjusted income measure has limitations, and we do not restrict our performance-management process solely to this metric. A limitation of the Adjusted income measure is that it provides a view of our operations without including all events during a period, such as the effects of an acquisition or amortization of purchased intangibles, and does not provide a comparable view of our performance to other companies in the biopharmaceutical industry. We also use other specifically tailored tools designed to achieve the highest levels of performance. For example, our R&D organization has productivity targets, upon which its effectiveness is measured. In addition, the earn-out of Performance Share Award grants is determined based on a formula that measures our performance using relative total shareholder return.

Purchase Accounting Adjustments

Adjusted income is calculated prior to considering certain significant purchase accounting impacts resulting from business combinations and net asset acquisitions. These impacts can include the incremental charge to cost of sales from the sale of acquired inventory that was written up to fair value, amortization related to the increase in fair value of the acquired finite-lived intangible assets acquired from Pharmacia, Wyeth and King, depreciation related to the increase/decrease in fair value of the acquired fixed assets, amortization related to the increase in fair value of acquired debt, charges for purchased IPR&D and the fair value changes associated with contingent consideration. Therefore, the Adjusted income measure includes the revenues earned upon the sale of the acquired products without considering the aforementioned significant charges.

Certain of the purchase accounting adjustments associated with a business combination, such as the amortization of intangibles acquired as part of our acquisition of King in 2011, Wyeth in 2009 and Pharmacia in 2003, can occur through 20 or more years, but this presentation provides an alternative view of our performance that is used by management to internally assess business