Changes between Version 7 and Version 8 of Hawk_Dove


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Timestamp:
08/30/11 18:04:46 (21 months ago)
Author:
developer
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  • Hawk_Dove

    v7 v8  
    11 
    22= Hawk-Dove = 
    3 2x2 Matrix - Pure & Mixed Strategies - Heat-Map - Group Size & Population Matching.   
     3Here we consider a 2x2 Matrix game - Pure & Mixed Strategies - Heat-Map - Group Size & Population Matching.  ''The following experiment example builds off [http://scholar.google.com/scholar?cluster=11401569606482103304 "Separating the Hawks from the Doves: Evidence from Continuous Time Laboratory Games" by Dan Friedman, Keith Henwood & Ryan Oprea (JET 2011)]'' 
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    56[[PageOutline(1-3)]] 
    67 
    7 The following experiment example builds off [http://scholar.google.com/scholar?cluster=11401569606482103304 "Separating the Hawks from the Doves: Evidence from Continuous Time Laboratory Games" by Dan Friedman, Keith Henwood & Ryan Oprea (JET 2011)] 
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    9 An excerpt from Henwood et. al (2010) “Hawk-Dove has two different asymmetric Nash equilibria in pure strategies as well as one symmetric Nash equilibrium in mixed strategies. Evolutionary game theory predicts that (a) the mixed NE will be selected within a single population (each player interacts with all other players), but (b) one of the pure NE will be selected when row players and column players belong to two disjoint populations…. Recently developed laboratory techniques enable us to conduct a direct and stringent test of (a) and (b) and related hypotheses.” 
     9An excerpt from Henwood et. al (2010) “Hawk-Dove has two different asymmetric Nash equilibria in pure strategies as well as one symmetric Nash equilibrium in mixed strategies. Evolutionary game theory predicts that (a) the mixed NE will be selected within a single population (each player interacts with all other players), but (b) one of the pure NE will be selected when row players and column players belong to two disjoint populations.... Recently developed laboratory techniques enable us to conduct a direct and stringent test of (a) and (b) and related hypotheses.” 
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    12 n players. 12-to-10 depending on the session.  
     12Grouping - Players are independently and randomly assigned an initial strategy setting, and are free to change their strategy whenever and as often as they like.  
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    14 Twenty, two-minute periods in each session.  
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    16 Players are independently and randomly assigned an initial strategy setting, and are free to change their strategy whenever and as often as they like.  
     14[[Image(paramerterized-hawkdove-game.PNG,600)]] 
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    19 == Population assignment == ''(linked to tuple discussion below)''  
     17Thus with our demo experiment we'll need to explore mixed strategy settings (the "[wiki:heatmap2d heatmap]" selector) and  [wiki:Grouping Grouping] settings. For mixed strategies, subject simply need some way to choose some combination of the their two strategy options. For Grouping, the experimenter needs some way to arrange groups of people in order to test the hypothesis above.  
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    21  - One Population:  
    22  - Two Population:  
    23 Theoretical optimal behavior differs depending on what type of population a user is interacting with... 
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    25 [[Image(paramerterized-hawkdove-game.PNG,600)]] 
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    2720---- 
    2821= Starting the Test Experiment =  
    2922 
    30 First, you need to download the following JAR file [wiki:WikiStart#DownloadCONG here]. This is an executable JAVA file that will load & execute your experiment.  
     23First, you need to download the following ZIP file [wiki:WikiStart#DownloadCONG here]. It contains an executable JAVA file called "Test.JAR" that will load & execute the experiment below.  
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    32 You'll also need to download the configuration CSV file, [raw-attachment:hawk-dove.csv] that will define our various treatments. The various edifying treatments discussed below have each their own row "Period" in the config CSV file.  
     25You'll also need to download the "game definition" configuration file that will define how the experiment works: the game payoffs, how subjects interact with the server & each other, and how information is displayed in the various treatments we consider. This is a CSV file, [raw-attachment:hawk-dove.csv]. The various edifying treatments discussed below each have their own Period row in the config file -- changes in period definition row result in changes in the experiment that period. 
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    3427 1. Double-click on Test.JAR