Estelle Bee Dagum

Estela (Estelle) Bee Dagum is an Argentine and Canadian economist and statistician who was a professor "chiara fama" of statistical sciences at the University of Bologna. She is known for her research on time series analysis, and in particular for developing the X-11-ARIMA method of seasonal adjustment, which became widely used and is a predecessor to X-12-ARIMA and later methods.

Dagum is the author of the books Benchmarking, Temporal Distribution, and Reconciliation Methods for Time Series (with Pierre A. Cholette, Springer, 2006) and Seasonal Adjustment Methods and Real Time Trend-Cycle Estimation (with Silvia Bianconcini, Springer, 2016).