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        <link:definition>06113 - Schedule - Expense Example {Transposed}</link:definition>
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        <link:definition>06116 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>06129 - Schedule - Expense Example {Transposed}</link:definition>
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        <link:definition>06132 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>06137 - Schedule - Expense Example {Transposed}</link:definition>
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        <link:definition>06139 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>06146 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>06148 - Document - Risk/Return Summary {Unlabeled} (PACE Municipal Fixed Income Investments)</link:definition>
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        <link:definition>06151 - Schedule - Expense Example {Transposed}</link:definition>
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        <link:definition>06153 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>06158 - Schedule - Expense Example {Transposed}</link:definition>
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        <link:definition>06160 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>06161 - Disclosure - Risk/Return Detail Data {Elements} (PACE International Fixed Income Investments - Class P)</link:definition>
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        <link:definition>06162 - Document - Risk/Return Summary {Unlabeled} (PACE High Yield Investments - Class P)</link:definition>
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        <link:definition>06163 - Schedule - Shareholder Fees</link:definition>
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      <link:roleType roleURI="http://www.ubs.com/role/ExpenseExample_S000006015Member2" id="ExpenseExample_S000006015Member2">
        <link:definition>06165 - Schedule - Expense Example {Transposed}</link:definition>
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        <link:definition>06167 - Schedule - Average Annual Total Returns {Transposed}</link:definition>
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        <link:definition>06168 - Disclosure - Risk/Return Detail Data {Elements} (PACE High Yield Investments - Class P)</link:definition>
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