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61.
62.
Dominic DetzenPankaj K. Jain Tanakorn LikitapiwatRose M. Rubin 《Journal of Air Transport Management》2012,18(1):59-63
We conduct event studies and statistical analysis to explore the impact of low cost carriers’ entry on legacy airline stock prices. Oligopoly structures, entry barriers, and high fixed costs make the airline industry highly susceptible to competitive and network expansion impact of low cost airlines’ entry. Positive stock returns are observed, which we interpret as the spillover effects of network expansion. Thus, rising passenger traffic and improved connectivity increase the revenues of legacy airlines to sufficiently offset the low cost carriers’ competitive threats. 相似文献
63.
This paper analyzes oligopolistic markets with network externalities. Exploiting a minimal complementarity structure on the model primitives that allows for pure network goods, we prove existence of non-trivial fulfilled-expectations equilibrium. We formalize the concept of industry viability, investigate its determinants, and show that it improves with more firms in the market and/or by technological progress. These results enlighten some well-known conclusions from case studies in the management strategy literature. We also characterize the effects of market structure on industry performance, which depart substantially from ordinary markets. The approach relies on lattice-theoretic methods, supplemented with basic insights from nonsmooth analysis. 相似文献
64.
Ronny Manos Israel Drori Amir Shoham Barak S. Aharonson 《International Review of Applied Economics》2015,29(4):455-481
We study the effect of national culture on economic decisions, focusing on GLOBE cultural dimensions of uncertainty avoidance and future orientation. Specifically, we study the effect of divergence between cultural values and practices (societal aspirations), on the aggregate savings decision. Using the life-cycle model of savings as our basic model, we find that societal aspirations are important in explaining national savings behavior. In particular, we show that societal aspirations relating to future orientation and uncertainty avoidance have a positive effect on the rate of savings. We interpret our findings to indicate that such societal aspirations lead to mistrust in the societal arrangements and institutions, and induce savings as a means of securing the future and reducing uncertainty. To substantiate this interpretation, we utilize the microfinance industry; showing that high societal aspirations are associated with preference for savings through member-owned microfinance institutions (MFIs) over savings through non-member-owned MFIs. 相似文献
65.
Rabah Amir 《Southern economic journal》2005,71(3):636-660
The literature on supermodular optimization and games is surveyed from the perspective of potential users in economics. This methodology provides a new approach for comparative statics based only on critical assumptions, and allows a general analysis of games with strategic complementarities. The results are presented in a simplified yet rigourous manner, without reference to lattice theory, for the special case of one-dimensional parameter and actions sets, with the emphasis being on wide accessibility. Detailed applications are presented for well-known models of consumer behavior, monopoly pass-through, Bertrand and Cournot competition, strategic R&D, search, and matching. Wherever appropriate, useful tricks for applications and comparative comments are inserted. 相似文献
66.
With one-way spillovers, the standard symmetric two-period R&D model leads to an asymmetric equilibrium only, with endogeneous innovator and imitator roles. We show how R&D decisions and measures of firm heterogeneity—market shares, R&D shares, and profits—depend on spillovers and on R&D costs. While a joint lab always improves on consumer welfare, it yields higher profits, cost reductions, and social welfare only under extra assumptions, beyond those required with multidirectional spillovers. Finally, the novel issue of optimal R&D cartels is addressed. We show an optimal R&D cartel may seek to minimize R&D spillovers between its members. 相似文献
67.
Amir Ahmadi Javid Nader Azad 《Transportation Research Part E: Logistics and Transportation Review》2010,46(5):582-597
This paper for the first time presents a novel model to simultaneously optimize location, allocation, capacity, inventory, and routing decisions in a stochastic supply chain system. Each customer’s demand is uncertain and follows a normal distribution, and each distribution center maintains a certain amount of safety stock. To solve the model, first we present an exact solution method by casting the problem as a mixed integer convex program, and then we establish a heuristic method based on a hybridization of Tabu Search and Simulated Annealing. The results show that the proposed heuristic is considerably efficient and effective for a broad range of problem sizes. 相似文献
68.
Rubin P 《Hospital materiel management quarterly》1994,16(1):62-66
Taking care of the customer while running an efficient manufacturing operation is a challenge. This article describes the success one contract manufacturer had in developing a customer service department to manage a growing and diverse customer base. Balancing customer and plant requirements during a period of organizational change is discussed. 相似文献
69.
70.
Synopsis This paper considers the well-known Levhari-Mirman discrete-time model of resource extraction, and investigates the effects of the information structure of the dynamic game – open-loop, Markovian or history-dependent – on the equilibrium consumption path and the overall utility of the agents. Due to the special structure of the model, the open-loop regime yields a Pareto-optimal outcome. The Markovian regime leads to the most pronounced version of the tragedy of the commons. History-dependent behavior yields an outcome set that is intermediate between the other two cases, and that may include the Pareto-optimal outcome in some cases. The level of efficiency of equilibrium behaviour is thus U-shaped as a function of the level of information the agents’ extraction strategies are based on. The analysis suggests that in environments characterized by a dynamic (and no market) externality, forcing agents to commit to open-loop behavior would constitute welfare-improving regulation. 相似文献