Confusion about multiple information SetsIs it possible to have a signaling game in which all players are both informed (about themselves) and uniformed (about other players)?Is there a universal type space involving infinite players?Confusion on Strategy Sets in a simultaneous move gameFormal definition of perfect informationHow to visually present a simultaneous game with continuous strategiesTiming of Nature Drawing TypesStrategy sets and SPNEHow to approach such question of two periods and asymmetric information game?The concept of expansion of an information structureConvert a sequential move game into a simultaneous move game

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Confusion about multiple information Sets


Is it possible to have a signaling game in which all players are both informed (about themselves) and uniformed (about other players)?Is there a universal type space involving infinite players?Confusion on Strategy Sets in a simultaneous move gameFormal definition of perfect informationHow to visually present a simultaneous game with continuous strategiesTiming of Nature Drawing TypesStrategy sets and SPNEHow to approach such question of two periods and asymmetric information game?The concept of expansion of an information structureConvert a sequential move game into a simultaneous move game






.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;








1












$begingroup$


I'm confronted with the following situation:



First of all nature decides which of two games is played. Then each of two players make a simultaneous move, but only player I knows which game is played.



How can I display this information in extensive form?



The root will be the nature, which decides whether Game I or Game II is played. Now we have two additional layers for each game. Now I would use an information set to display that the moves are taken simultaneously, but how can I display that only player I knows about which game is played?










share|improve this question









$endgroup$


















    1












    $begingroup$


    I'm confronted with the following situation:



    First of all nature decides which of two games is played. Then each of two players make a simultaneous move, but only player I knows which game is played.



    How can I display this information in extensive form?



    The root will be the nature, which decides whether Game I or Game II is played. Now we have two additional layers for each game. Now I would use an information set to display that the moves are taken simultaneously, but how can I display that only player I knows about which game is played?










    share|improve this question









    $endgroup$














      1












      1








      1





      $begingroup$


      I'm confronted with the following situation:



      First of all nature decides which of two games is played. Then each of two players make a simultaneous move, but only player I knows which game is played.



      How can I display this information in extensive form?



      The root will be the nature, which decides whether Game I or Game II is played. Now we have two additional layers for each game. Now I would use an information set to display that the moves are taken simultaneously, but how can I display that only player I knows about which game is played?










      share|improve this question









      $endgroup$




      I'm confronted with the following situation:



      First of all nature decides which of two games is played. Then each of two players make a simultaneous move, but only player I knows which game is played.



      How can I display this information in extensive form?



      The root will be the nature, which decides whether Game I or Game II is played. Now we have two additional layers for each game. Now I would use an information set to display that the moves are taken simultaneously, but how can I display that only player I knows about which game is played?







      game-theory bayesian-game extensive-games






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 12 hours ago









      user7802048user7802048

      1204 bronze badges




      1204 bronze badges




















          1 Answer
          1






          active

          oldest

          votes


















          3












          $begingroup$

          You could represent the game in extensive form like this:



          enter image description here



          The dashed lines enclose player 2's information set. This encompasses all of player 2's nodes because player 2 observes neither nature's nor player 1's choice. Player 1's information sets are the two singleton nodes because player 1 knows which branch nature has chosen.






          share|improve this answer









          $endgroup$












          • $begingroup$
            Thank you! This is exactly what I was looking for. If Player 2 knows which game is played as well I'd circle the first two branches and last to branches, right? If Player 2 doesn't know which game is played, but which action Player 1 took, I'd connect the first and third branch and the second and forth branch, right?
            $endgroup$
            – user7802048
            12 hours ago











          • $begingroup$
            @user7802048 yes, that's right
            $endgroup$
            – Ubiquitous
            12 hours ago













          Your Answer








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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          3












          $begingroup$

          You could represent the game in extensive form like this:



          enter image description here



          The dashed lines enclose player 2's information set. This encompasses all of player 2's nodes because player 2 observes neither nature's nor player 1's choice. Player 1's information sets are the two singleton nodes because player 1 knows which branch nature has chosen.






          share|improve this answer









          $endgroup$












          • $begingroup$
            Thank you! This is exactly what I was looking for. If Player 2 knows which game is played as well I'd circle the first two branches and last to branches, right? If Player 2 doesn't know which game is played, but which action Player 1 took, I'd connect the first and third branch and the second and forth branch, right?
            $endgroup$
            – user7802048
            12 hours ago











          • $begingroup$
            @user7802048 yes, that's right
            $endgroup$
            – Ubiquitous
            12 hours ago















          3












          $begingroup$

          You could represent the game in extensive form like this:



          enter image description here



          The dashed lines enclose player 2's information set. This encompasses all of player 2's nodes because player 2 observes neither nature's nor player 1's choice. Player 1's information sets are the two singleton nodes because player 1 knows which branch nature has chosen.






          share|improve this answer









          $endgroup$












          • $begingroup$
            Thank you! This is exactly what I was looking for. If Player 2 knows which game is played as well I'd circle the first two branches and last to branches, right? If Player 2 doesn't know which game is played, but which action Player 1 took, I'd connect the first and third branch and the second and forth branch, right?
            $endgroup$
            – user7802048
            12 hours ago











          • $begingroup$
            @user7802048 yes, that's right
            $endgroup$
            – Ubiquitous
            12 hours ago













          3












          3








          3





          $begingroup$

          You could represent the game in extensive form like this:



          enter image description here



          The dashed lines enclose player 2's information set. This encompasses all of player 2's nodes because player 2 observes neither nature's nor player 1's choice. Player 1's information sets are the two singleton nodes because player 1 knows which branch nature has chosen.






          share|improve this answer









          $endgroup$



          You could represent the game in extensive form like this:



          enter image description here



          The dashed lines enclose player 2's information set. This encompasses all of player 2's nodes because player 2 observes neither nature's nor player 1's choice. Player 1's information sets are the two singleton nodes because player 1 knows which branch nature has chosen.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 12 hours ago









          UbiquitousUbiquitous

          14.2k4 gold badges26 silver badges69 bronze badges




          14.2k4 gold badges26 silver badges69 bronze badges











          • $begingroup$
            Thank you! This is exactly what I was looking for. If Player 2 knows which game is played as well I'd circle the first two branches and last to branches, right? If Player 2 doesn't know which game is played, but which action Player 1 took, I'd connect the first and third branch and the second and forth branch, right?
            $endgroup$
            – user7802048
            12 hours ago











          • $begingroup$
            @user7802048 yes, that's right
            $endgroup$
            – Ubiquitous
            12 hours ago
















          • $begingroup$
            Thank you! This is exactly what I was looking for. If Player 2 knows which game is played as well I'd circle the first two branches and last to branches, right? If Player 2 doesn't know which game is played, but which action Player 1 took, I'd connect the first and third branch and the second and forth branch, right?
            $endgroup$
            – user7802048
            12 hours ago











          • $begingroup$
            @user7802048 yes, that's right
            $endgroup$
            – Ubiquitous
            12 hours ago















          $begingroup$
          Thank you! This is exactly what I was looking for. If Player 2 knows which game is played as well I'd circle the first two branches and last to branches, right? If Player 2 doesn't know which game is played, but which action Player 1 took, I'd connect the first and third branch and the second and forth branch, right?
          $endgroup$
          – user7802048
          12 hours ago





          $begingroup$
          Thank you! This is exactly what I was looking for. If Player 2 knows which game is played as well I'd circle the first two branches and last to branches, right? If Player 2 doesn't know which game is played, but which action Player 1 took, I'd connect the first and third branch and the second and forth branch, right?
          $endgroup$
          – user7802048
          12 hours ago













          $begingroup$
          @user7802048 yes, that's right
          $endgroup$
          – Ubiquitous
          12 hours ago




          $begingroup$
          @user7802048 yes, that's right
          $endgroup$
          – Ubiquitous
          12 hours ago

















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