One of the key assumptions of the ordinary regression model is that the errors have the same variance throughout the sample. This is also called the homoscedasticity ...

In this paper we extend the conditional autoregressive range (CARR) model to the asymmetric CARR mixed data sampling (ACARR-MIDAS) model, which takes into consideration volatility asymmetry as well as ...

The AUTOREG procedure provides regression analysis and forecasting of linear models with autocorrelated or heteroscedastic errors. The AUTOREG procedure includes the following features: estimation and ...

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...

This study examines empirically the volatility comovement between crude oil prices and key agricultural commodities for a series of shocks faced by the global economy. Using both a multivariate ...