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We develop a score-driven time-varying parameter model where no particular parametric error distribution needs to be specified. The proposed method relies on a versatile spline-based density, which produces a score function that follows a natural cubic spline. This flexible approach nests the...
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examines the consistency, persistency, and severity (degree) of volatility in exchange rate of Nigerian currency (naira) vis … was used to analyze the long-run consistency of the naira exchange rate while the time series properties of the data was …
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