WORKING PAPERS
Dec.31, 2024

  • Yuki Oyama, Takashi Akamatsu (2024),
    “A Market-based Efficient Matching Mechanism for
     Crowdsourced Delivery Systems with Demand/Supply Elasticities    ,”
      arXiv: 2412.20395v1  [PDF].

  • Takashi Akamatsu, Tomoya Mori, Minoru Osawa and Yuki Takayama (2024),
    “Spatial Scale of Agglomeration and Dispersion:
     Number, Spacing, and the Spatial Extent of Cities    ,”
      arXiv: 1912.05113v6  [PDF].

  • Takashi Akamatsu, Yuki Oyama (2023),
    “A Fluid-Particle Decomposition Approach to Matching Market Design for Crowdsourced Delivery Systems,”
      arXiv: 2312.01641v1  [PDF].

  • Takara Sakai, Takashi Akamatsu, and Koki Satsukawa (2023),
    “A Paradox of Remote and Flexible Working in the Bottleneck Model,”
      arXiv: 2309.08352v1  [PDF].

  • Takashi Akamatsu, Koki Satsukawa, and Yuki Oyama (2023),
    “Global Stability of Day-to-Day Dynamics for Schedule-based Markovian Transit Assignment with Boarding Queues,”
      arXiv: 2304.02194v1  [PDF].

  • Masanao Wakui, Takara Sakai, and Takashi Akamatsu (2022),
    “An Effcient Algorithm for Solving Dynamic User Equiibrium Traffic Assignment in Large-scale Networks,”
      Jxiv: 214  [PDF].

  • Takara Sakai, Masanao Wakui, and Takashi Akamatsu (2022),
    “A Fast Algorithm for Solving Fujita-Ogawa Model in Discrete Two-dimensional Space,”
      Jxiv: 187  [PDF].

  • Takara Sakai, Takashi Akamatsu, and Koki Satsukawa (2022),
    “Queue Replacement Principle for Corridor Problems with Heterogeneous Commuters,”
      arXiv: 2210.03357v1  [PDF].

  • Tomoya Mori, Takashi Akamatsu, Yuki Takayama, and Minoru Osawa (2022,2024),
    “Origin of Power Laws and Their Spatial Fractal Structure for City-Size Distributions,”
      arXiv: 2207.05346v5  [PDF].

  • Takara Sakai, Koki Satsukawa, Takashi Akamatsu (2022),
    “Non-existence of Queues for System Optimal Departure Patterns in Tree Networks,”
      arXiv: 2205.06015  [PDF].

  • Haoran Fu, Takashi Akamatsu, Koki Satsukawa, Kentaro Wada (2021),
    “Dynamic Traffic Assignment in a Corridor Network: Optimum versus Equilibrium,”
      arXiv: 2102.01899v2  [PDF].

  • Takashi Akamatsu, Tomoya Mori, Minoru Osawa, Yuki Takayama (2021, 2022),
    “Multimodal Agglomeration in Economic Geography,”
      arXiv: 1912.05113v4  [PDF].

  • Minoru Osawa, Takashi Akamatsu, Yosuke Kogure, (2020, 2022),
    “Stochastic Stability of Agglomeration Patterns in an Urban Retail Model,”
      arXiv: 2011.06778v1  [PDF].

  • Yuki Oyama, Yusuke Hara, Takashi Akamatsu (2020, 2021),
    “Markovian Traffic Equilibrium Assignment based on Network Generalized Extreme Value Model,”
      arXiv: 2009.02033v3  [PDF].

  • Takashi Akamatsu, Kentaro Wada, Takamasa Iryo, Shunsuke Hayashi (2020),
    “A New Look at Departure Time Choice Equilibrium Models with Heterogeneous Users,”
      arXiv: 2009.11037v2  [PDF].

  • Takashi Akamatsu, Kentaro Wada, Takamasa Iryo, Shunsuke Hayashi (2018),
    “Departure Time Choice Equilibrium and Optimal Transport Problems,”
      MPRA paper 90361  [PDF].

  • Takashi Akamatsu, Takeshi Nagae, Minoru Osawa, Koki Satsukawa, Takara Sakai, Daijiro Mizutani (2020),
    “Can a Herd Immunity Strategy become a Viable Option against COVID-19? A Model-based Analysis on Social Acceptability and Feasibility,”
      medRxiv 2020.05.19.20107524  [PDF].

  • Minoru Osawa, Takashi Akamatsu (2019),
    “Emergence of Urban Landscapes: Equilibrium Selection in a Model of Internal Structure of the Cities,”
      MPRA paper 92395  [PDF].

  • Takashi Akamatsu, Tomoya Mori, Minoru Osawa, Yuki Takayama (2017, 2019, 2020),
    “Endogenous Agglomeration in a Many-Region World,”
      MPRA paper 97496  [PDF].   arXiv: 1912.05113v2  [PDF].

  • Takashi Akamatsu, Tomoya Mori, Minoru Osawa, Yuki Takayama (2017),
    “Spatial Scale of Agglomeration and Dispersion: Theoretical Foundations and Empirical Implications,”
      MPRA paper 83142  [PDF].

  • Minoru Osawa, Takashi Akamatsu, Yuki Takayama (2015, 2016),
    “ Harris and Wilson (1978) Model Revisited: The Spatial Period-Doubling Cascade in an Urban Retail Model,”
      MPRA paper 70969  [PDF].

  • Takashi Akamatsu, Shota Fujishima, Yuki Takayama (2015),
    “Discrete-Space Social Interaction Models: Stability and Continuous Limit,”
      MPRA paper 65225  [PDF].

  • Takashi Akamatsu, Shota Fujishima, Yuki Takayama (2014),
    “On Stable Equilibria in Discrete-Space Social Interaction Models,”
      MPRA paper 55938  [PDF].

  • Takashi Akamatsu, Yuki Takayama (2013, 2015),
    “Agglomerations in a Multi-Region Economy: Poly-Centric versus Mono-Centric Patterns,”
      KIER DP929  [PDF].

  • Takashi Akamatsu, Yuki Takayama (2009),
    “ A Simplified Approach to Analyzing Multi-Regional Core-Periphery Models,”
      MPRA paper 21739  [PDF].

  • Takashi Akamatsu, Yuki Takayama, Kiyohiro Ikeda (2009),
    “Spatial Discounting, Fourier, and Racetrack Economy: A Recipe for the Analysis of Spatial Agglomeration Models,”
      MPRA paper 21738  [PDF].

  • Kiyohiro Ikeda, Takashi Akamatsu, Tatsuhito Kono (2009),
    “Spatial Period-Doubling Agglomeration of a Core-Periphery Model with a System of Cities,”
      MPRA paper 25636  [PDF].

  • Toshimori Otazawa and Takashi Akamatsu (2007),
    “Equilibrium Dynamics of Interregional Migration Timing Decision in Agglomeration Economies,”  [PDF].

  • Shintaro Sato and Takashi Akamatsu (2007),
    “A Core-Periphery Model with a Knowledge Transfer Mechanism,”  [PDF].

  • Kiyohiro Ikeda, Tatsuhito Kono, Takashi Akamatsu, Akito Yanagimoto and Syunji Yamaki (2007),
    “Symmetry Breaking Bifurcation of Krugman's Core-Periphery Model with Many Regions: Group Theoretic Approach,”  [PDF].

  • Takashi Akamatsu (2007),
    “Tradeable Network Permits: A New Scheme for the Most Efficient Use of Network Capacity,”  [PDF].

  • Takashi Akamatsu (2007),
    “A System of Tradable Bottleneck Permits for Transportation Networks,”  [PDF].

  • Takeshi Nagae and Takashi Akamatsu (2007),
    “Catastrophe Averse Strategies for Routing and Siting in the Disposal of Hazardous Materials,”  [PDF].

  • Takeshi Nagae and Takashi Akamatsu (2006, revised 2007),
    “Dynamic System Optimal Traffic Control based on Realtime Observation of Stochastic Travel Time,”  [PDF].

  • Takashi Akamatsu and Takeshi Nagae (2006, revised 2007),
    “Dynamic Ramp Metering Strategies for Risk Averse System Optimal Assignment,”  [PDF].

  • Takashi Akamatsu and Takeshi Nagae (2005),
    “Graph Options: Evaluating Complex Interdependent Decisions under Uncertainty,”   [PDF].

  • Takeshi Nagae and Takashi Akamatsu (2004, revised 2007),
    “A Generalized Complementarity Approach to Solving Real Option Problems,”  [PDF].

  • Takashi Akamatsu and Yasushi Oba (2004),
    “Global Firms' Location and Regional Economic Risks,”(in Japanese)  [PDF].

  • Takashi Akamatsu and Yuki Takayama (2004, revised 2006),
    “Irreducibility of Dynamic Traffic Conditions in a Model of Residential Location and Departure Time Choice Equilibrium with Bottleneck Congestion,”  [PDF].

  • Takashi Akamatsu and Benjamin Heydecker (2003),
    “Detecting Capacity Paradoxes in Dynamic Traffic Assignment: Analysis of Nonsaturated Networks,”  [PDF].

  • Takashi Akamatsu, Shintaro Sato and Nguyen Xuan Long (2005, revised 2006),
    “Tradable Time-of-Day Bottleneck Permits for Morning Commuters,”  [PDF].

  • Takashi Akamatsu and Takeshi Nagae (2005, revised 2006),
    “A Financial Engineering Approach to Managing Infrastructure Project Risks,”  [PDF].

  • Takeshi Nagae and Takashi Akamatsu (2005, revised 2006),
    “Dynamic Revenue Management of a Toll Road Project under Transportation Demand Uncertainty,”  [PDF].

  • Takeshi Nagae and Takashi Akamatsu (2004),
    “A Stochastic Control Model of Project Decisions Represented as a Graph Structure,”  [PDF].

  • Takashi Akamatsu and Takeshi Nagae (2003),
    “Variational Ineauqlity Approach  to Infrastructure Investment/Management Problems under Uncertainty,”  [PDF].

  • Takashi Akamatsu and Takeshi Nagae (2003),
    “Dynamic Pricing and Hedging of Projects with Stochastic Cash Flow Streams: an Entropic Projection Approach,”  [PDF].

  • Takeshi Nagae and Takashi Akamatsu (2003),
    “Pricing of Real Options in an Incomplete Market,”  [PDF].

  • Takashi Akamatsu and Benjamin Heydecker (2002),
    “Detecting Capacity Paradoxes in Dynamic Traffic Assignment in Saturated Networks,”  [PDF].

  • Takashi Akamatsu (2003),
    “The Cell Transmission Model, Newell's Cumulative Curves and Min-Plus Algebra,”  [PDF].

  • Takashi Akamatsu and Masao Kuwahara (1996),
    “Dynamic Network Equilibrium Model of Simultaneous Route / Departure Time Choice for a Many-to-One OD Pattern,”  [PDF].

  • Takashi Akamatsu (1996),
    “Stochastic Traffic Assignment with Geometric Attributes of Paths,”  [PDF].

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