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Long memory and nonlinearity are two key features of some macroeconomic time series which are characterized by persistent shocks that seem to rise faster during recession than it falls during expansion. A variant of nonlinear time series model together with long memory are used to examine these...
Persistent link: https://www.econbiz.de/10011477601
good size and power properties to distinguish between stationary long memory and ESTAR. Moreover, the second approach is … shown to have more power. …
Persistent link: https://www.econbiz.de/10010270049
good size and power properties to distinguish between stationary long memory and ESTAR. Moreover, the second approach is … shown to have more power. -- directed-Wald test ; ESTAR ; long memory …
Persistent link: https://www.econbiz.de/10003877585
This paper provides an up-to-date survey of the main theoretical developments in ACD modeling and empirical studies using financial data. First, we discuss the properties of the standard ACD specification and its extensions, existing diagnostic tests, and joint models for the arrival times of...
Persistent link: https://www.econbiz.de/10012732848
tests have very respectable power in comparison to the optimal tests for Markov-switching parameters of Carrasco et al …
Persistent link: https://www.econbiz.de/10012923738
We propose extensions of the Box-Pierce (1970) portmanteau autocorrelation test to allow for two generalisations: (i …) time series that exhibit unconditional heteroskedasticity and (ii) to test for the presence of autocorrelation only after a … autocorrelation consistent (HAC)-type estimator. While we show this modified test is robust to unconditional heteroskedasticity, the …
Persistent link: https://www.econbiz.de/10013079429
tests have very respectable power in comparison to the optimal tests for Markov-switching parameters of Carrasco …
Persistent link: https://www.econbiz.de/10012966691
This paper proposes a test for linearity against exponential smooth transition models with endogenous right-hand-side variables: to the very best of our knowledge, this class of models is new to the literature. By Monte Carlo analysis the test is shown to have good finite sample properties
Persistent link: https://www.econbiz.de/10014176554
Interest in the interface of nonstationarity and nonlinearity has been increasing in the econometric literature. This paper provides a formal method of testing for nonstationary long memory against the alternative of particular forms of nonlinerarity. The nonlinear models we consider are ESTAR...
Persistent link: https://www.econbiz.de/10014076075
(potentially) stationary series. This paper analytically investigates the size and power properties of such tests when the series …
Persistent link: https://www.econbiz.de/10014091328