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 کاملHead-Driven Simulation of Water Supply Networks
Up to now most of the existing water supply network analyses have been based on demand-driven simulation models. These models assume that nodal outflows are fixed and are always available. However, this method of simulation neglects the pressure-dependent nature of demand that is characterized by changes in actual nodal outflows particularly during critical events like major mechanical or hydra...
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ژورنال
عنوان ژورنال: E3S Web of Conferences
سال: 2018
ISSN: 2267-1242
DOI: 10.1051/e3sconf/20185900006