In this study, we first discuss the issues of treatment of seasonal items in consumer price indices (CPI), strong seasonality and unpredictable volatility. Later we examine the effect of selected seasonal treatment methods on the volatility of Laspeyres-type CPI for the first time using a unique...

This paper analyzes the common factor that drives the cyclical movements in the corporate event waves. We show that this common corporate factor is closely linked to the economic business cycles. We, first, document the statistical and the time-series properties of the corporate event waves to...