英文标题:
《Competition and Efficiency of Coalitions in Cournot Games with
Uncertainty》
---
作者:
Baosen Zhang and Ramesh Johari and Ram Rajagopal
---
最新提交年份:
2017
---
英文摘要:
We investigate the impact of coalition formation on the efficiency of Cournot games where producers face uncertainties. In particular, we study a market model where firms must determine their output before an uncertain production capacity is realized. In contrast to standard Cournot models, we show that the game is not efficient when there are many small firms. Instead, producers tend to act conservatively to hedge against their risks. We show that in the presence of uncertainty, the game becomes efficient when firms are allowed to take advantage of diversity to form groups of certain sizes. We characterize the tradeoff between market power and uncertainty reduction as a function of group size. In particular, we compare the welfare and output obtained with coalitional competition, with the same benchmarks when output is controlled by a single system operator. We show when there are $N$ firms present, competition between groups of size $\\Omega(\\sqrt{N})$ results in equilibria that are socially optimal in terms of welfare and groups of size $\\Omega(N^{2/3})$ are socially optimal in terms of production. We also extend our results to the case of uncertain demand by establishing an equivalency between Cournot oligopoly and Cournot Oligopsony. We demonstrate our results with real data from electricity markets with significant wind power penetration.
---
中文摘要:
我们研究了联盟形成对生产者面临不确定性的古诺博弈效率的影响。特别是,我们研究了一个市场模型,其中企业必须在不确定的生产能力实现之前确定其产量。与标准的古诺模型相比,我们证明了当存在许多小公司时,博弈是无效的。相反,生产商往往采取保守的行动来对冲风险。我们表明,在不确定性存在的情况下,当允许企业利用多样性形成一定规模的群体时,博弈变得有效。我们将市场力量和减少不确定性之间的权衡描述为集团规模的函数。特别是,我们比较了通过联盟竞争获得的福利和产出,以及当产出由单个系统运营商控制时的相同基准。我们表明,当存在$N$公司时,规模为$\\Omega(\\sqrt{N})$的群体之间的竞争会导致均衡,在福利方面是社会最优的,而规模为$\\Omega(N^{2/3})$的群体在生产方面是社会最优的。我们还通过建立古诺寡头垄断和古诺寡头垄断之间的等价关系,将我们的结果推广到需求不确定的情况。我们用来自风力发电市场的真实数据展示了我们的结果。
---
分类信息:
一级分类:Computer Science 计算机科学
二级分类:Computer Science and Game Theory 计算机科学与博弈论
分类描述:Covers all theoretical and applied aspects at the intersection of computer science and game theory, including work in mechanism design, learning in games (which may overlap with Learning), foundations of agent modeling in games (which may overlap with Multiagent systems), coordination, specification and formal methods for non-cooperative computational environments. The area also deals with applications of game theory to areas such as electronic commerce.
涵盖计算机科学和博弈论交叉的所有理论和应用方面,包括机制设计的工作,游戏中的学习(可能与学习重叠),游戏中的agent建模的基础(可能与多agent系统重叠),非合作计算环境的协调、规范和形式化方法。该领域还涉及博弈论在电子商务等领域的应用。
--
一级分类:Computer Science 计算机科学
二级分类:Systems and Control 系统与控制
分类描述:cs.SY is an alias for eess.SY. This section includes theoretical and experimental research covering all facets of automatic control systems. The section is focused on methods of control system analysis and design using tools of modeling, simulation and optimization. Specific areas of research include nonlinear, distributed, adaptive, stochastic and robust control in addition to hybrid and discrete event systems. Application areas include automotive and aerospace control systems, network control, biological systems, multiagent and cooperative control, robotics, reinforcement learning, sensor networks, control of cyber-physical and energy-related systems, and control of computing systems.
cs.sy是eess.sy的别名。本部分包括理论和实验研究,涵盖了自动控制系统的各个方面。本节主要介绍利用建模、仿真和优化工具进行控制系统分析和设计的方法。具体研究领域包括非线性、分布式、自适应、随机和鲁棒控制,以及混合和离散事件系统。应用领域包括汽车和航空航天控制系统、网络控制、生物系统、多智能体和协作控制、机器人学、强化学习、传感器网络、信息物理和能源相关系统的控制以及计算系统的控制。
--
一级分类:Mathematics 数学
二级分类:Optimization and Control 优化与控制
分类描述:Operations research, linear programming, control theory, systems theory, optimal control, game theory
运筹学,线性规划,控制论,系统论,最优控制,博弈论
--
一级分类:Quantitative Finance 数量金融学
二级分类:Economics 经济学
分类描述:q-fin.EC is an alias for econ.GN. Economics, including micro and macro economics, international economics, theory of the firm, labor economics, and other economic topics outside finance
q-fin.ec是econ.gn的别名。经济学,包括微观和宏观经济学、国际经济学、企业理论、劳动经济学和其他金融以外的经济专题
--
---
PDF下载:
-->