Problem de finition: The inventory control problem associated with the distribution of essential medicines in Zambia involves seasonality and uncertainty in both demand and lead-times, heterogeneous delivery locations, and lost sales. Beyond the traditional performance metrics of system service...

Despite substantial financial aid from international donors for procurement of health products, stockouts of life-saving drugs related to prevalent infectious diseases are still widespread in Africa. Addressing the lack of research on why these stockouts occur, we study the relationship between...