Networks and Spatial Economics最新文献_第2页

On Approximating Solutions to Non-monotone Variational Inequality Problems: An Approach Through the Modified Projection and Contraction Method 论非单调变分不等式问题的近似解：通过修正投影和收缩法的一种方法

Networks and Spatial Economics Pub Date : 2024-07-25 DOI: 10.1007/s11067-024-09638-y

Duong Viet Thong, Vu Tien Dung, Pham Thi Huong Huyen, Hoang Thi Thanh Tam

引用次数: 0

Facility Layout and Spatial Configuration Efficiency Assessment 设施布局和空间配置效率评估

Networks and Spatial Economics Pub Date : 2024-07-23 DOI: 10.1007/s11067-024-09637-z

Enbo Zhou, Alan T. Murray

{"title":"Facility Layout and Spatial Configuration Efficiency Assessment","authors":"Enbo Zhou, Alan T. Murray","doi":"10.1007/s11067-024-09637-z","DOIUrl":"https://doi.org/10.1007/s11067-024-09637-z","url":null,"abstract":"With rapid regional development and urbanization, many public and private facilities and infrastructures (e.g., sirens, cellphone base stations, bike sharing stations, wind turbines, etc.) require regular renovation or supplementation. Evaluating existing facility efficiency and expanding to new facility locations are of broad interest among stakeholders, including businesses, urban planners, government agencies, and the public more generally. Such evaluation can be used to improve overall social accessibility, equity and efficiency by reconfiguring or adding new facilities in the best way possible. A regularly distributed lattice is often viewed as an optimal configuration given important observed properties and characteristics. In this paper, we formulate a spatial optimization model to evaluate spatial coverage efficiency. Specifically, given two sets of points, the model seeks the optimal location and orientation of an idealized lattice to align with an existing facility configuration. The distance between existing facilities and the ideally configured lattice under the optimal alignment represents efficiency. An iterative heuristic based on gradient descent and spatial indexing is developed to solve this problem. Extensive computational experience demonstrates the importance of this problem and the effectiveness of the derived solution approach, as well as highlights assistance provided to decision makers in identifying inefficiencies as well as improving existing infrastructure service systems.","PeriodicalId":501141,"journal":{"name":"Networks and Spatial Economics","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141774126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Regional Resilience and the Asymmetric Effects of the 2008 Crisis in Brazil: A Survival Model Analysis 巴西的地区复原力和 2008 年危机的不对称影响：生存模型分析

Networks and Spatial Economics Pub Date : 2024-07-17 DOI: 10.1007/s11067-024-09640-4

Paulo Henrique de Cezaro Eberhardt, Adelar Fochezatto

引用次数: 0

Structural Dynamics of Inter-city Innovation Networks in China: A Perspective From TERGM 中国城市间创新网络的结构动态：来自 TERGM 的视角

Networks and Spatial Economics Pub Date : 2024-06-26 DOI: 10.1007/s11067-024-09634-2

Antonio Zinilli, Yujie Gao, Thomas Scherngell

{"title":"Structural Dynamics of Inter-city Innovation Networks in China: A Perspective From TERGM","authors":"Antonio Zinilli, Yujie Gao, Thomas Scherngell","doi":"10.1007/s11067-024-09634-2","DOIUrl":"https://doi.org/10.1007/s11067-024-09634-2","url":null,"abstract":"Innovation networks play a key role in advancing knowledge transfer, collaboration, and technological progress across sectors and regions. Central to the understanding of the mechanisms driving such networks is their dynamic evolution and structure. Much of the literature explores spatial and socio-economic drivers of innovation networks, focusing on geographic, institutional, and cultural influences. However, many of these studies tend to overlook the intricate properties that govern the behavior and dynamics of these networks. This study seeks to address this research gap, delving deeper by investigating Chinese intercity innovation networks between 2007 and 2018. Specifically, we examine: (i) the preferential attachment dynamics within intercity innovation networks, (ii) transitivity effects that underscore the interconnectedness of these networks, and (iii) the persistence and recurrence of connections. We find that cities show indeed a remarkable tendency to form ties with others that already have numerous connections. Such transitivity effects are important in highlighting the formation of innovation clusters. Moreover, the influence of link memory suggests that past collaborations significantly determine future partnerships, similar to the persistent nature of relationships in agglomeration theories.","PeriodicalId":501141,"journal":{"name":"Networks and Spatial Economics","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Location and Price Competition on a Uniform Path with Different Pricing Policies 不同定价政策下统一路径上的位置和价格竞争

Networks and Spatial Economics Pub Date : 2024-06-26 DOI: 10.1007/s11067-024-09631-5

Joyendu Bhadury, H. A. Eiselt

{"title":"Location and Price Competition on a Uniform Path with Different Pricing Policies","authors":"Joyendu Bhadury, H. A. Eiselt","doi":"10.1007/s11067-024-09631-5","DOIUrl":"https://doi.org/10.1007/s11067-024-09631-5","url":null,"abstract":"This paper models duopolistic competition between an online retailer and a physical store retailer with the online retailer modelled as a firm with uniform delivered pricing policy and the physical store as a firm with a mill pricing policy. Both firms seek to maximize their respective profits through an appropriate choice of location and price. The market is assumed to be given by a “uniform path” - a tree whose node weights and arc lengths are equal. Modelling reality, we consider two alternate types of transportation costs faced by the online retailer: either dependent on the relative location of the firm and a customer or independent of it. Beginning with the framework of a Stackelberg, i.e., sequential game, optimal location and price strategies are analytically derived for both sequences of market entry by the two competitors. Cases in which the leader faces the first entry paradox or can become a monopolist by strategically deterring entry by the follower are delineated. Thereafter, Nash Equilibrium solutions to the simultaneous game are identified. Salient insights from the results include: (a) the competitive pressure faced by the physical store in the presence of online competition (b) the inability of an online retailer to compete in “large” markets under the first type of transportation cost and (c) the advantage to the physical retailer of being a market leader.","PeriodicalId":501141,"journal":{"name":"Networks and Spatial Economics","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141502776","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Proximal Point Algorithms with Inertial Extrapolation for Quasi-convex Pseudo-monotone Equilibrium Problems 准凸伪单调均衡问题的惯性外推法近端点算法

Networks and Spatial Economics Pub Date : 2024-06-20 DOI: 10.1007/s11067-024-09632-4

Chinedu Izuchukwu, Grace N. Ogwo, Yekini Shehu

引用次数: 0

The Classical p-median Problem as a Surrogate Model in Hub Location 作为枢纽定位替代模型的经典 p-median 问题

Networks and Spatial Economics Pub Date : 2024-06-13 DOI: 10.1007/s11067-024-09633-3

J. Brimberg, Raca Todosijević, Dragan Uros̈ević

引用次数: 0

Cooperative Location for Competing Firms under Delivered Pricing and Demand Linear in Price 交货定价和需求线性价格条件下竞争企业的合作定位

Networks and Spatial Economics Pub Date : 2024-06-13 DOI: 10.1007/s11067-024-09629-z

B. Pelegrín, Pascual Fernández, María Dolores García

引用次数: 0

Association of Vehicle Count Data Obtained Via Image Processing Techniques Compared with Microsimulation Program Analysis Results 通过图像处理技术获得的车辆计数数据与微观模拟程序分析结果的关联性比较

Networks and Spatial Economics Pub Date : 2024-06-11 DOI: 10.1007/s11067-024-09630-6

Seyitali İlyas, Bahadır Ersoy Ulusoy, S. Köfteci, Yalçın Albayrak

引用次数: 0

An Agent-based Approach to Study Spatial Structure Effects on Estimated Distance Deterrence in Commuting 基于代理的方法研究空间结构对通勤中估计距离威慑力的影响

Networks and Spatial Economics Pub Date : 2024-06-10 DOI: 10.1007/s11067-024-09628-0

Azam Azad Gholami, I. Thorsen, J. Ubøe

引用次数: 0