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.
[2] Dagum is the author of the books Benchmarking, Temporal Distribution, and Reconciliation Methods for Time Series (with Pierre A. Cholette, Springer, 2006)[3] and Seasonal Adjustment Methods and Real Time Trend-Cycle Estimation (with Silvia Bianconcini, Springer, 2016).
Finally in 1972 she began working at Statistics Canada, where she would stay for many years, taking Canadian citizenship[1] and changing her first name to Estelle (but continuing to use "Estela" for her publications).
She was given the award "for her outstanding achievement in economic statistics, particularly for widely recognized contributions in time series analysis and for extending Julius Shiskin's pioneering work in seasonal adjustment by combining the X-11 seasonal adjustment program with the Box-Jenkins ARIMA models and especially the development of the X-11-ARIMA method".
[1] Her book Seasonal Adjustment Methods and Real Time Trend-Cycle Estimation won the 2016 Eric Ziegel Award of Technometrics.