منابع مشابه
Optimal Supply Diversification Under General Supply Risks
We analyze a planning model for a firm or public organization that needs to cover uncertain demand for a given item by procuring supplies from multiple sources. The necessity to employ multiple suppliers arises from the fact that when an order is placed with any of the suppliers, only a random fraction of the order size is usable. The model considers a single demand season with a given demand d...
متن کاملBid-Taker Power and Supply Base Diversification
We study a buyer who periodically auctions off short-term supply contracts among her supply base. To mitigate significant cost shocks to procurement the buyer can diversify her supply base by selecting suppliers from different regions. We find that the buyer’s decision to diversify depends on her bid-taker power, that is, her ability to choose the auction mechanism. At one extreme, when the buy...
متن کاملHow does resource supply affect evolutionary diversification?
The availability of different resources in the environment can affect the outcomes of evolutionary diversification. A unimodal distribution of diversity with resource supply has been widely observed and explained previously in the context of selection acting in a spatially heterogeneous environment. Here, we propose an alternative mechanism to explain the relationship between resource supply an...
متن کاملBargaining power and supply base diversification
We examine a supply base diversification problem faced by a buyer who periodically holds auctions to award short term supply contracts among a cohort of suppliers (i.e., the supply base). To mitigate significant cost shocks to procurement, the buyer can diversify her supply base by selecting suppliers from different regions. We find that the optimal degree of supply base diversification depends...
متن کاملCompetition and Diversification Effects in Supply Chains with Credit Risk∗†
We study the effects of credit risk in a supply chain where one retailer deals with competing risky suppliers who may default during their production lead-times. The suppliers, who compete for business with the retailer by establishing wholesale prices, are leaders in a Stackelberg game with the retailer. The retailer, facing uncertain future demand, chooses order quantities while weighing the ...
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ژورنال
عنوان ژورنال: Journal of Nuclear Medicine
سال: 2014
ISSN: 0161-5505,2159-662X
DOI: 10.2967/jnumed.114.138008