My research focuses on modeling consumers' shopping behavior and their responses to retailer and manufacturer decisions and characteristics, such as stockouts, shelf layout, price (promotions), branding, and assortment decisions.

·Full Professor in Marketing (Gewoon Hoogleraar) UFSIA (since 1-10-1998)

·Professor in Marketing, (Hoogleraar) UFSIA (since 1-10-1993)

·Part Time Assistant Professor, Catholic University of MONS (Deeltijds Docent FUCAM), (since 1-9-1989)

·Full time Assistant Professor in Applied Economic Sciences (Voltijds Hoofddocent TEW), UFSIA (from 1-10-1986 to 1-10-1993)

·Lector Catholic University of Leuven, Department of Applied Economic Sciences (from 1-10-1985 to 1-10-1986)

·Assistant in Quantitative Decision Methods, UFSIA, Faculty of Applied Economic Sciences, (from 1-1-1984 to 1-10-1985)

·Research Fellow of the National Foundation for Scientific Research (Aspirant NFWO), UFSIA (from 1-10-1980 to 1-1-1984)

PhD supervisor of Marc Logman (UFSIA, co-promotor A . Bultez), Katia Campo (UFSIA), Bram Foubert (UFSIA), Els Breugelmans (UFSIA, co-promotor with Katia Campo), Patricia Nisol (FUCAM-UFSIA, co-promotor with Alain Bultez), Maciej Szymanowski (UvT), Jia Liu (UvT), Hans Haans (UvT), Carlos Lourenco (UvT), Mark Vroegrijk (UvT, co-promotor with Katia Campo), Arjen van Lin (UvT).