Now showing items 21-40 of 40

    • Mobile commerce and device specific perceived risk 

      Cozzarin, Brian Paul; Dimitrov, Stanko (Springer, 2016)
      This study examines the role of perceived risk and access device type on consumers’ on-line purchase decisions. We use a two-step hurdle approach to estimate consumer behavior. In the first step, the decision of whether ...
    • Modeling congestion and service time in hub location problems 

      Alumur, Sibel A.; Nickel, Stefan; Rohrbeck, Brita; Saldanha-da-Gama, Francisco (Elsevier, 2018-03-01)
      In this paper, we present a modeling framework for hub location problems with a service time limit considering congestion at hubs. Service time is modeled taking the traveling time on the hub network as well as the handling ...
    • Multi-period hub network design problems with modular capacities 

      Alumur, Sibel A.; Nickel, Stefan; Saldanha-da-Gama, Francisco; Secerdin, Yusuf (Springer, 2016-11-01)
      In this paper, a modeling framework is proposed for multi-period hub location. The problems to be studied are extensions of classical hub location problems to the situation in which the hub network can be progressively ...
    • Nature vs. Stress: Investigating the Use of Biophilia in Non-Violent Exploration Games to Reduce Stress 

      Reetz, Adrian; Valtchanov, Deltcho; Barnett-Cowan, Michael; Hancock, Mark; Wallace, James R (ACM, 2021)
      Games hold the potential to help many address health-related issues such as chronic stress. We investigated the use of biophilia, an affective response to nature grounded in the psychology literature, as indirect physiological ...
    • On the Road to Making Science of “Art”: Risk Bias in Market Scoring Rules 

      Karimi, Majid; Dimitrov, Stanko (The Institute for Operations Research and the Management Sciences, 2018-06)
      We study market scoring rule (MSR) prediction markets in the presence of risk-averse or risk-seeking agents that have unknown yet bounded risk preferences. It is well known that if agents can be prescreened, then MSRs can ...
    • Open Shortest Path First Routing Under Random Early Detection 

      Liu, Jiaxin; Dimitrov, Stanko (Wiley, 2018-03-01)
      In this article, we consider a variant of Open Shortest Path First (OSPF) routing that accounts for Random Early Detection (RED), an Active Queue Management method for backbone networks. In the version of OSPF we consider ...
    • Optimal inventory decisions for a risk-averse retailer when offering layaway 

      Wang, Daao; Dimitrov, Stanko; Jian, Lirong (Elsevier, 2020-07-01)
      Layaway allows economically disadvantaged budget-constrained consumers to purchase expensive items through amortized payments and nominal program fees, as opposed to using high-interest financing options such as credit ...
    • Optimal inventory decisions when offering layaway 

      Dimitrov, Stanko; Ceryan, Oben (Taylor & Francis, 2019)
      This paper presents an inventory management policy for a retailer offering a layaway programme. Layaway is a service provided by retailers that allows budget constrained consumers who have sufficiently high valuations to ...

      Cozzarin, Brian Paul; Dimitrov, Stanko; Koo, Bonwoo (World Scientific, 2019-08-05)
      This study investigates whether organisational innovation has positive impacts on small and medium enterprises, using three waves of the South Korean innovation survey. While correcting for endogeneity, we find that the ...
    • P2P Marketplaces and Retailing in the Presence of Consumers' Valuation Uncertainty 

      Jiang, Lifei; Dimitrov, Stanko; Mantin, Benny (Wiley, 2017-03)
      Can peer‐to‐peer (P2P) marketplaces benefit traditional supply chains when consumers may experience valuation risk? P2P marketplaces can mitigate consumers' risk by allowing them to trade mismatched goods; yet, they also ...
    • Pricing, greening, and transparency decisions considering the impact of government subsidies and CSR behavior in supply chain decisions 

      Khosroshahi, Hossein; Dimitrov, Stanko; Hejazi, Seyed Reza (Elsevier, 2021-05-01)
      In this paper, we analytically model different government subsidy strategies in a supply chain manufacturing and selling a green product. We model the interaction between greening degree and transparency level set by a ...
    • Profit Maximizing Hub Location Problems 

      Taherkhani, Gita; Alumur, Sibel A. (Elsevier, 2019-07-01)
      In this paper, we study profit maximizing hub location problems. We formulate mathematical models determining the location of hubs, designing the hub networks, and routing the demand in order to maximize profit. The profit ...
    • Promoting Resiliency in Emergency Communication Networks: A Network Interdiction Stylized Initial Case Study Model of a Miami-Dade County Network 

      Bartolacci, Michael R.; Dimitrov, Stanko (IGI Global, 2017)
      Police, fire, and emergency personnel rely on wireless networks to serve the public. Whether it is during a natural disaster, or just an ordinary calendar day, wireless nodes of varying types form the infrastructure that ...
    • Robust inverse optimization 

      Ghobadi, Kimia; Lee, Taewoo; Mahmoudzadeh, Houra; Terekhov, Daria (Elsevier, 2018-05-01)
      Given an observation of a decision-maker’s uncertain behavior, we develop a robust inverse optimization model for imputing an objective function that is robust against mis-specifications of the behavior. We characterize ...
    • Shipment consolidation with two demand classes: Rationing the dispatch capacity 

      Satir, Benhur; Erenay, Fatih S.; Bookbinder, James H. (Elsevier, 2018-10-01)
      We analyze the problem faced by a logistics provider that dispatches shipment orders (parcels or larger packages) of two order classes, viz. expedited and regular. Shipment orders arrive according to a compound Poisson ...
    • Simulation-Optimization Framework for Synthesis and Design of Natural Gas Downstream Utilization Networks 

      Al-Sobhi, Saad A.; Elkamel, Ali; Erenay, Fatih S.; Shaik, Munawar A. (MDPI, 2018-02-01)
      Many potential diversification and conversion options are available for utilization of natural gas resources, and several design configurations and technology choices exist for conversion of natural gas to value-added ...
    • Spatial Analysis of Single Allocation Hub Location Problems 

      Peker, Meltem; Kara, Bahar Y.; Campbell, James F.; Alumur, Sibel A. (Springer, 2016-12-01)
      Hubs are special facilities that serve as switching, transshipment and sorting nodes in many-to-many distribution systems. Flow is consolidated at hubs to exploit economies of scale and to reduce transportation costs between ...
    • Towards a Trait Model of Video Game Preferences 

      Fortes Tondello, Gustavo; Valtchanov, Deltcho; Reetz, Adrian; Wehbe, Rina Renee; Orji, Rita; Nacke, Lennart (Taylor & Francis, 2018-04-19)
      Typologies for understanding players’ preferences toward different gameplay styles have gained popularity in research. However, attempts to model players’ preferences are based on type models instead of trait models, ...
    • User-Defined Gestures with Physical Props in Virtual Reality 

      Moran Ledesma, Marco Aurelio; Schneider, Oliver; Hancock, Mark (ACM, 2021-11-05)
      When interacting with virtual reality (VR) applications like CAD and open-world games, people may want to use gestures as a means of leveraging their knowledge from the physical world. However, people may prefer physical ...
    • When does eco-efficiency rebound or backfire? An analytical model 

      Chenavaz, Régis Y.; Dimitrov, Stanko; Figge, Frank (Elsevier, 2021-04-16)
      It is known that an eco-efficiency strategy, which saves resources in the production process, may be offset by a rebound effect; it may even backfire. Less known are the exact conditions under which eco-efficiency rebounds ...


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