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Purpose: Given the severity and the length of the crisis caused by the COVID-19 pandemic, information on the financial impact of the pandemic becomes useful to enterprises who wish to arm themselves with strategies and policies, designed to combat the effects of similar crises. Such information...
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A crucial aspect of empirical research is the stationarity properties of a time series. In this short chapter, we examine the effects of temporal aggregation on the power properties of the Augmented Dickey Fuller (ADF) stationarity test developed by Dickey, D.A. and W.A. Fuller, Journal of the...
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