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This chapter evaluates the most important theoretical developments in ARCH type modeling of time-varying conditional variances. The coverage include the specification of univariate parametric ARCH models, general inference procedures, conditions for stationarity and ergodicity, continuous time...
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types of seasonality. Restrictions such as cointegration and common cycles are here applied also to examine multivariate …
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This paper aims to bridge the gap between processes where shocks are permanent and those with transitory shocks by formulating a process in which the long run impact of each innovation is time varying and stochastic. Frequent transitory shocks are supplemented by occasional permanent shifts. The...
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This paper tests for cointegration between regional output of an industry and national output of the same industry. An … equilibrium economic theory is presented to argue for the plausibility of cointegration, however, regional economic forecasting … using the shift and share framework often acts as if cointegration does not exist. Data analysis on broad industrial sectors …
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