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作者：Brynjolfsson, Erik; Hu, Yu (Jeffrey); Rahman, Mohammad S.
作者单位：Massachusetts Institute of Technology (MIT); Purdue University System; Purdue University; University of Calgary
摘要：A key question for Internet commerce is the nature of competition with traditional brick-and-mortar retailers. Although traditional retailers vastly outsell Internet retailers in most product categories, research on Internet retailing has largely neglected this fundamental dimension of competition. Is cross-channel competition significant, and if so, how and where can Internet retailers win this battle? This paper attempts to answer these questions using a unique combination of data sets. We c...
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作者：Novak, Sharon; Stern, Scott
作者单位：Massachusetts Institute of Technology (MIT); Northwestern University
摘要：This paper examines complementarity among vertical integration decisions in automobile product development. Though most research assumes that contracting choices are independent of each other, contracting complementarity arises when the returns to a single vertical integration decision are increasing in the level of vertical integration associated with other contracting choices. First, effective coordination may depend on the level of (noncontractible) effort on the part of each agent; contrac...
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作者：Villas-Boas, J. Miguel
作者单位：University of California System; University of California Berkeley
摘要：One important decision firms must make is to select the product line ( characteristics and number of products) to offer consumers. This paper explores the effect of the interaction between consumer evaluation costs and pricing on the optimal product line length to offer consumers. Before deciding to buy a product among all products offered, a consumer learns the product line length. Given the product line length, a consumer decides whether to evaluate the products available and their prices. T...
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作者：Federgruen, Awi; Yang, Nan
作者单位：Columbia University; Cornell University
摘要：We characterize the equilibrium behavior in a broad class of competition models in which the competing firms' market shares are given by an attraction model, and the aggregate sales in the industry depend on the aggregate attraction value according to a general function. Each firm's revenues and costs are proportional with its expected sales volume, with a cost rate that depends on the firm's chosen attraction value according to an arbitrary increasing function. Whereas most existing competiti...
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作者：Koijen, Ralph S. J.; Rodriguez, Juan Carlos; Sbuelz, Alessandro
作者单位：University of Chicago; Tilburg University; Catholic University of the Sacred Heart
摘要：We study a dynamic asset allocation problem in which stock returns exhibit short-run momentum and long-run mean reversion. We develop a tractable continuous-time model that captures these two predictability features and derive the optimal investment strategy in closed form. The model predicts negative hedging demands for medium-term investors, and an allocation to stocks that is nonmonotonic in the investor's horizon. Momentum substantially increases the economic value of hedging time variatio...
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作者：Tebbens, Radboud J. Duintjer; Thompson, Kimberly M.
作者单位：Harvard University; Harvard T.H. Chan School of Public Health; Delft University of Technology
摘要：Public health budget constraints force policy makers to prioritize resources toward those interventions that yield the highest perceived benefits. Intuitively, it appears optimal to focus resources on affordable interventions against prevalent diseases. However, due to the dynamics of infectious disease eradication, policies focusing on a static perception of priorities may lead to economically suboptimal outcomes. Using a hypothetical two-disease dynamic transmission model, we explore several...
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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 ...
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作者：Rahmandad, Hazhir
作者单位：Virginia Polytechnic Institute & State University
摘要：We examine how delays between actions and their consequent payoffs affect the process of organizational adaptation. Formal conceptions of organizational learning typically include the assumption that payoffs immediately follow their antecedent actions, making the search for better strategies relatively straightforward. However, previous actions influence current organizational performance through their effects on organizational resources and capabilities. These resources and capabilities canno...
