One of the most important problems in the petroleum industry is the well-known petrol station replenishment problem with time windows, which calls for the determination of optimal routes by using a fleet of tank trucks to serve a set of petrol stations over a given planning horizon. In this...

Intensive competition in the market place has forced companies to respond more quickly to customer needs through faster product development and shorter delivery time. Increasing customer awareness and preferences have led to an unprecedented explosion in product variety. End customers give...

Goal theory research has made an important contribution to understanding managers’ behaviour within organisations but most of this research has focused on single goal settings. Given the recent popularity of implementing balanced scorecards in organisations, generalising this research to...