His research programme has addressed behavioural aspects of forecasting and forecast process improvement in business and supply chain. He is also interested in research involving big data as well as how information can be extracted from time series. Fotios is also a frequent contributor to the practitioner-oriented journal Foresight: The International Journal of Applied Forecasting, where he also serves as the editor for forecasting support systems. He is co-founder of the Forecasting Society, which promotes and disseminates judgmental forecasting research and its applications.