Testing Shifts in Financial Models with Conditional Heteroskedasticity: An Empirical Distribution Function Approach

Shinn-Juh Lin and Jian Yang
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Shinn-Juh Lin: University of Technology - Sydney
Jian Yang: University of Western Ontario

No 63, Econometric Society World Congress 2000 Contributed Papers from Econometric Society

Abstract: This paper proposes a class of test procedures for a structural change with an unknown change point. In particular, we consider a general financial time series model with conditional heteroskedasticity. The test statistics are constructed via the empirical distribution approach and are aiming for detecting a change that may occur beyond the second moment. We derive the asymptotic null distributions of the test statistics and tabulate the critical values. Studies of the local power show that our test statistics have non-trivial local power. Finite sample performances of the proposed tests are studied via Monte Carlo methods. The test procedures are applied to test change point in the S&P 500 daily index.

Date: 2000-08-01
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