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作者：Plambeck, Erica; Wang, Qiong
作者单位：Stanford University; AT&T; Alcatel-Lucent
摘要：This paper investigates the impact of e-waste regulation on new product introduction in a stylized model of the electronics industry. Manufacturers choose the development time and expenditure for each new version of a durable product, which together determine its quality. Consumers purchase the new product and dispose of the last-generation product, which becomes e-waste. The price of a new product strictly increases with its quality and consumers' rational expectation about the time until the...
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作者：Basak, Gopal K.; Jagannathan, Ravi; Ma, Tongshu
作者单位：Indian Statistical Institute; Indian Statistical Institute Kolkata; Northwestern University; National Bureau of Economic Research; State University of New York (SUNY) System; Binghamton University, SUNY
摘要：We develop a jackknife estimator for the conditional variance of a minimum tracking error variance portfolio constructed using estimated covariances. We empirically evaluate the performance of our estimator using an optimal portfolio of 200 stocks that has the lowest tracking error with respect to the S&P 500 benchmark when three years of daily return data are used for estimating covariances. We find that our jackknife estimator provides more precise estimates and suffers less from in-sample o...
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作者：Tawarmalani, Mohit; Kannan, Karthik; De, Prabuddha
作者单位：Purdue University System; Purdue University
摘要：We analyze the allocation of objects in a network of caches that collaborate to service requests from customers. A thorough analysis of this problem in centralized and decentralized setups, both of which occur in practice, is essential for understanding the benefits of collaboration. A key insight offered by this paper is that an efficient implementation of cooperative cache management is possible because, in the centralized scenario, the object allocation resulting in the best social welfare ...
