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In her dissertation 'Competition in the Retail Market of Consumer Packaged Goods’, Wei Li investigated competition in the retail market of consumer packaged goods from different angles. The study on brand competitive reactions has found that the reaction is influenced by brands’ relative market shares. The study on retail chain competition has found that private label positioning has an impact on chain shares’ price sensitivities. The study on sales forecasting compared different methods of including competition information.

In his dissertation 'New models and applications for railway timetabling’, Gert-Jaap Polinder developed methods that can support the design of an optimal railway timetable such that the timetable is as good as possible. Using this ideal timetable, one can make clear whether regular departure patterns are useful or not, and how this is related with the expected travel time of passengers.