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Information Sharing in Supply Chains: An Empirical and Theoretical Valuation, Management Science


We provide an empirical and theoretical assessment of the value of information sharing in a two-stage supply chain. The value of downstream sales information to the upstream firm stems from improving upstream order fulfillment forecast accuracy. Such an improvement can lead to lower safety stock and better service. Based on the data collected from a CPG company, we empirically show that, if the company includes the downstream sales data to forecast orders, the improvement in the mean squared forecast error ranges from 7.1% to 81.1% across all studied products. Theoretical models in the literature, however, suggest that the value of information sharing should be zero for over half of our studied products. To reconcile the gap between the literature and the empirical observations, we develop a new theoretical model. While the literature assumes that the decision maker strictly adheres to a given inventory policy, our model allows him to deviate, accounting for private information held by the decision maker, yet unobservable to the econometrician. This turns out to reconcile our empirical findings with the literature. These "decision deviations" lead to information losses in the order process, resulting in a strictly positive value of downstream information sharing. Furthermore, we empirically quantify and show the significance of the value of operations knowledge - the value of knowing the downstream replenishment policy.




Gad Allon, Achal Bassamboo, Jan A. Van Mieghem, R. Cui

Date Published



Allon, Gad, Achal Bassamboo, Jan A. Van Mieghem, and R. Cui. 2015. Information Sharing in Supply Chains: An Empirical and Theoretical Valuation. Management Science.(11): 2803-2824.


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