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Evaluation and Combination of Conditional Quantile Forecasts

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  • Raffaella Giacomini

    ()
    (Boston College)

  • Ivana Komunjer

    ()
    (California Institute of Technology)

Abstract

This paper proposes a method for comparing and combining conditional quantile forecasts in an out-of-sample framework. We construct a Conditional Quantile Forecast Encompassing (CQFE) test as a Wald-type test of superior predictive ability. Rejection of CQFE provides a basis for combination of conditional quantile forecasts. Two central features of our implementation of the principle of encompassing are, first, the use of the 'tick' loss function and, second, a conditional, rather than unconditional approach to out-of-sample evaluation. Some of the advantages of the conditional approach are that it allows the forecasts to be generated by using general estimation procedures and that it is applicable when the forecasts are based on both nested and non-nested models. The test is also relatively easy to implement using standard GMM techniques. An empirical application to Value-at-Risk evaluation illustrates the usefulness of our method.

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Bibliographic Info

Paper provided by Boston College Department of Economics in its series Boston College Working Papers in Economics with number 571.

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Length: 43 pages
Date of creation: 01 Jun 2003
Date of revision:
Handle: RePEc:boc:bocoec:571

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Keywords: Encompassing; Loss Function; GMM; Value at Risk;

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