Liability-driven investment strategy

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Liability-driven investment policies and asset management decisions are those largely determined by the sum of current and future liabilities attached to the investor, be it a household or an institution. As it purports to associate constantly both sides of the balance sheet in the investment process, it has been called a "holistic" investment methodology.

In essence, the liability-driven investment strategy (LDI) is an investment strategy of a company or individual based on the cash flows needed to fund future liabilities. It is sometimes referred to as a "dedicated portfolio" strategy. It differs from a “benchmark-driven” strategy, which is based on achieving better returns than an external index such as the S&P 500 or a combination of indices that invest in the same types of asset classes. LDI is designed for situations where future liabilities can be predicted with some degree of accuracy. For individuals, the classic example would be the stream of withdrawals from a retirement portfolio that a retiree will make to pay living expenses from the date of retirement to the date of death. For companies, the classic example would be a pension fund that must make future payouts to pensioners over their expected lifetimes (see below).