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161.
This article analyzes a capacity/inventory planning problem with a one‐time uncertain demand. There is a long procurement leadtime, but as some partial demand information is revealed, the firm is allowed to cancel some of the original capacity reservation at a certain fee or sell off some inventory at a lower price. The problem can be viewed as a generalization of the classic newsvendor problem and can be found in many applications. One key observation of the analysis is that the dynamic programming formulation of the problem is closely related to a recursion that arises in the study of a far more complex system, a series inventory system with stochastic demand over an infinite horizon. Using this equivalence, we characterize the optimal policy and assess the value of the additional demand information. We also extend the analysis to a richer model of information. Here, demand is driven by an underlying Markov process, representing economic conditions, weather, market competition, and other environmental factors. Interestingly, under this more general model, the connection to the series inventory system is different. © 2012 Wiley Periodicals, Inc. Naval Research Logistics 2012 相似文献
162.
Paul B. Rich 《Defense & Security Analysis》2019,35(4):430-446
ABSTRACTThis article reviews the book by Ofer Fridman and seeks to situate the strategic debate on hybrid war in the context of debate on the US involvement in Iraq. It points to intellectuals from the Marine Corps having a significant role in the initial development of the hybrid warfare concept at a time of some reservation in US military circles over COIN strategy as this was set out in the field manual FM3-24. Thereafter, the hybrid war concept rapidly spread and became a conceptual device used to explain Russian strategic intentions in the aftermath of the invasion of Ukraine in 2014. 相似文献
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Paul B. Rich 《Small Wars & Insurgencies》2019,30(4-5):1070-1076
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Paul D. Williams 《战略研究杂志》2020,43(3):366-391
ABSTRACTOver a decade of security force assistance (SFA) initiatives to build an effective Somali National Army (SNA) failed because of the interrelated effects of political, contextual and operational challenges. The key political challenges were interest asymmetry between international actors and Somali elites, insufficient focus on institution-building and a lack of donor coordination. The principal contextual challenges in Somalia were the legacies of two decades of state collapse and the negative effects of clan dynamics. The main operational challenges were building an army while simultaneously fighting a war, the complexities of military integration, and the severe capability gaps afflicting the SNA. 相似文献
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