Our most important liquidity policy is to pre-fund what we estimate will be our likely cash needs during a liquidity crisis and hold such excess liquidity in the form of unencumbered, highly liquid securities that may be sold or pledged to provide same-day liquidity. This “Global Core Excess” liquidity is intended to allow us to meet immediate obligations without needing to sell other assets or depend on additional funding from credit-sensitive markets. We believe that this pool of excess liquidity provides us with a resilient source of funds and gives us significant flexibility in managing through a difficult funding environment. Our Global Core Excess reflects the following principles:
The size of our Global Core Excess is based on an internal liquidity model together with a qualitative assessment of the condition of the financial markets and of Goldman Sachs. Our liquidity model identifies and estimates cash and collateral outflows over a short-term horizon in a liquidity crisis, including, but not limited to:
1 The Global Core Excess excludes liquid assets of $5.13 billion held separately by William Street Funding Corporation. See “— Contractual Obligations and Commitments” above for a further discussion of the William Street credit extension program.
The following table sets forth the average loan value (the estimated amount of cash that would be advanced by counterparties against these securities) of our Global Core Excess:

The U.S. dollar-denominated excess is comprised of only unencumbered U.S. government securities, U.S. agency securities and highly liquid U.S. agency mortgage-backed securities, all of which are Federal Reserve repo-eligible, as well as overnight cash deposits. Our non-U.S. dollar denominated excess is comprised of only unencumbered French, German, United Kingdom and Japanese government bonds and euro, British pound and Japanese yen overnight cash deposits. We strictly limit our Global Core Excess to this narrowly defined list of securities and cash because we believe they are highly liquid, even in a difficult funding environment. We do not believe other potential sources of excess liquidity, such as lower-quality unencumbered securities or committed credit facilities, are as reliable in a liquidity crisis.
The majority of our Global Core Excess is structured such that it is available to meet the liquidity requirements of our parent company, Group Inc., and all of its subsidiaries. The remainder is held in our principal non-U.S. operating entities, primarily to better match the currency and timing requirements for those entities’ potential liquidity obligations.
In addition to our Global Core Excess, we have a significant amount of other unencumbered securities as a result of our business activities. These assets, which are located in the United States, Europe and Asia, include other government bonds, high-grade money market securities, corporate bonds and marginable equities. We do not include these securities in our Global Core Excess.
We maintain our Global Core Excess and other unencumbered assets in an amount that, if pledged or sold, would provide the funds necessary to replace at least 110% of our unsecured obligations that are scheduled to mature (or where holders have the option to redeem) within the next 12 months. We assume conservative loan values that are based on stress-scenario borrowing capacity and we regularly review these assumptions asset class by asset class. The estimated aggregate loan value of our Global Core Excess and our other unencumbered assets averaged $169.27 billion and $156.74 billion for the three months ended May 2008 and year ended November 2007, respectively.