Proposes a correlation-robust test statistic for coefficient randomness in local-to-unity AR models plus a nuisance-parameter-free variant that shows better power than prior tests.
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Testing for Coefficient Randomness in Local-to-Unity Autoregressions
Proposes a correlation-robust test statistic for coefficient randomness in local-to-unity AR models plus a nuisance-parameter-free variant that shows better power than prior tests.