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Overview 2010 of ARL Program on Network Science for Human Decision Making

Bruce J. West
2011 Frontiers in Physiology  
PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) OVERVIEW 2010 OF ARL PROGRAM ON NETWORK SCIENCE FOR HUMAN DECISION MAKING BRUCE J.  ...  This approach is not directed at the totality of developing a Network Science, but has the more modest goal of understanding the deeply interdependent human networks of crucial importance to society as  ... 
doi:10.3389/fphys.2011.00076 pmid:22110441 pmcid:PMC3218377 fatcat:ey5egcszmfg5lhxtwnvk5nuwoy

Arbitrage Networks

Jean-Pierre Zigrand, Rohit Rahi
2010 Social Science Research Network  
This results in an equilibrium network of arbitrageurs. The optimal network for arbitrageurs is of the hub-spoke kind.  ...  The reason is that equilibrium networks suffer from a Prisoner's Dilemma problem that prevents network externalities from being internalized.  ...  We show that network externalities give rise to networks that are suboptimal for arbitrageurs. Controlling for depth, an optimal network is a hub-spoke network.  ... 
doi:10.2139/ssrn.1430560 fatcat:psakvtlvxzgernfco4xqyqrohq

Spillovers and Network Neutrality

Christiaan Hogendorn
2010 Social Science Research Network  
Since the Internet is a network of networks, and since many of the applications that run on the Internet are themselves networks, the total number of networks is huge.  ...  The reverse of a network effect can be called a nonuser negative network effect, so that when a user either leaves or does not join a network, there is a loss of what would otherwise be the positive network  ... 
doi:10.2139/ssrn.1632491 fatcat:rndbarpk6bdhjoo2f6teegaayy

Network Competition: Workhorse Resurrection

Thomas Tangerås
2010 Social Science Research Network  
They charge a higher price for calls outside (o¤-net) than inside (on-net) the network. This vindicates the use of (a perturbation of) the workhorse model of network competition.  ...  In the standard case of di¤erentiated networks, weak income e¤ects are enough to deliver results in line with stylized facts: The networks have an incentive to agree on high mobile termination rates to  ...  Most recently, Hurkens and López (2010) analyze the importance of consumer expectations.  ... 
doi:10.2139/ssrn.1694388 fatcat:znryeiupp5fmjpmkos6megbo4q

Strategic Random Networks

Benjamin Golub, Yair Livne
2010 Social Science Research Network  
When the value of friends of friends is low, equilibrium networks can be either sparse or thick.  ...  This paper combines game-theoretic and statistical approaches to network formation in order to develop such a model. Agents spend costly resources to socialize.  ...  Hundreds of millions of people now use these networks regularly, spending, on average, hours a day on the sites (Boyd and Ellison, (2007); "Facebook: Statistics" (2010)).  ... 
doi:10.2139/ssrn.1694310 fatcat:wg2lmgcewfhwzh3vq6lcqpinw4

Combining Energy Networks

Jan Abrell, Hannes Weigt
2010 Social Science Research Network  
In this paper we analyze the interaction of the natural gas network with the electricity network applying a partial equilibrium approach.  ...  However, the network character of both markets leads to further effects that are not obvious on first sight.  ...  Natural gas and electricity demand are taken from Eurostat (2010) .  ... 
doi:10.2139/ssrn.1550712 fatcat:pnkc4v73gjbxppmvxtmqref2r4

Contagion in Financial Networks

Prasanna Gai, Sujit Kapadia
2010 Social Science Research Network  
This paper develops a general model of contagion in ...nancial networks, identifying both its probability and potential impact.  ...  We explore how contagion risk is in ‡uenced by aggregate and idiosyncratic shocks, changes in network structure, and asset market liquidity.  ...  , A simple model of global cascades on random networks, Proceedings of the National Academy of Sciences, 99, 5766-5771.  ... 
doi:10.2139/ssrn.1577043 fatcat:woek4bqxlvekzolnmagptcrgh4

Network Industries and Regulatory Jurisdiction

Francesc Trillas
2010 Social Science Research Network  
This article presents new developments in the economics of federalism to analyze the determinants of speci...c investments in network industries and the interaction between structural and behavioral regulation  ...  Consumer surplus is a¤ected by a network externality.  ...  Decentralized powers are under signi…cant pressure to intervene in regulated network industries, at least for three reasons (see Troesken, 1996) : (i) the physical deployment of networks depends on the  ... 
doi:10.2139/ssrn.1618252 fatcat:r4767xxmhrde5a7zs6it5fpk4q

Interactive Contracting in Social Networks

Mark Chen
2010 Social Science Research Network  
L. 359, 392 (2010) (discussing network and disk encryption, and further subdividing disk encryption into two categories). 84 85 86 87 88 89 90 See HARRIS, supra note 78, at 153-56; see  ...  , 11:05 AM), http://venturebeat.com/2010/02/10/54-of-usinternet-users-on-facebook-27-on-myspace/.  ...  The same technology that social networks employ to create settings-based contracts can be modified to create interactive contracts.  ... 
doi:10.2139/ssrn.1962048 fatcat:vpizyxy3p5aqld5ebxkp6b3ehq

Power and Core-Periphery Networks

Dotan Persitz
2010 Social Science Research Network  
Moreover, in many cases these networks are the unique pairwise stable networks and in all cases they are the unique strongly efficient networks.  ...  The set of efficient networks often differs from the set of pairwise stable networks, hence a discussion on this issue is developed.  ...  in the social sciences literature.  ... 
doi:10.2139/ssrn.1579634 fatcat:y5phqbbmrjfmhiesoljr4b3bxy

Remanufacturing

Sophie Bernard
2010 Social Science Research Network  
This paper presents a theoretical model of remanufacturing where a duopoly of original manufacturers produces a component of a ...nal good. The speci...c component that needs to be replaced during the lifetime of the ...nal good creates a secondary market where independent remanufacturers enter the competition. An environmental regulation imposing a minimum level of remanufacturability is also introduced. The main results establish that, while collusion of the ...rms on the level of
more » ... ability increases both pro...t and consumer surplus, a social planner could use collusion as a substitute for an environmental regulation. However, if an environmental regulation is to be implemented, collusion should be repressed since competition supports the public intervention better. Under certain circumstances, the environmental regulation can increase both pro...t and consumer surplus. Part of this result supports the Porter Hypothesis, which stipulates that industries respecting environmental regulations can see their pro...ts increase.
doi:10.2139/ssrn.1571095 fatcat:ecsydm4larenjln2c423kpdj5y

Beatlestrap

Alessandro Palandri
2010 Social Science Research Network  
The bootstrap of test statistics requires the re-estimation of the model's parameters for each bootstrap sample. When parameter estimates are not available in closed form, this procedure becomes computationally demanding as each replication requires the numerical optimization of an objective function. This paper investigates the feasibility of the Beatlestrap, an optimization-free approach to bootstrap. It is shown that, ex-post M-estimators may be expressed in terms of simple arithmetic
more » ... s therefore reducing the bootstrap of Wald statistics to the bootstrap of averages. Similarly, it is shown how the Lagrange Multiplier and the Likelihood Ratio statistics may be bootstrapped bypassing the objective function's multiple optimizations. The proposed approach is extended to simulation based Indirect Estimators. Size and power of Beatlestrapped tests are evaluated by Monte Carlo simulations.
doi:10.2139/ssrn.1711400 fatcat:vmgg6jnhs5ccpmde7wei6b2cr4

Modeling Minneapolis Skyway Network

Arthur Huang, David Matthew Levinson
2010 Social Science Research Network  
The skyway network in equilibrium generated from the agent model displays similarity to the actual skyway system.  ...  Our results disclose that the accessibilitybased agent model can provide unique insights for the dynamics of the skyway network growth.  ...  While the simulated network consists of more links than the actual network, all segments in the actual network are predicted.  ... 
doi:10.2139/ssrn.1736211 fatcat:dzhis5u7z5e5jat2hyl6wliwua

Network science: a review focused on tourism [article]

R. Baggio, N. Scott, C. Cooper
2010 arXiv   pre-print
This paper presents a review of the methods of the science of networks with an application to the field of tourism studies.  ...  A static structural characterization of the network formed by destination stakeholders is derived from stakeholder interviews and website link analysis.  ...  Network science utilizes a range of tools and techniques to examine how the topological or structural properties of a network affect its behavior or evolution.  ... 
arXiv:1002.4766v2 fatcat:ikf3kx2kx5fdnoaxypmfz4ews4

Interdependence in Multinational Production Networks

Maggie Xiaoyang Chen
2010 Social Science Research Network  
The majority of multinational ...rms today operate a multilateral production network.  ...  This paper examines the e¤ect of existing production network on multinationals' entry decision.  ...  in explaining the network attributes.  ... 
doi:10.2139/ssrn.1630454 fatcat:ujekir4turfbhdynkw4shtdmem
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