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Topic: Grim trigger

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	History’s Miseries » Blog Archive » Grim Trigger (The Murder of Ellen Robb)
		One trigger strategy is “tit for tat.” This is a strategy used in multi-period game play wherein player X responds to a player Y’s strategy in one period of play by repeating it themselves in the next period of game play.
		… Grim trigger is a severe trigger strategy since a single defection brings about an eternal end to cooperation, in contrast to the much more forgiving tit for tat.
		18 Responses to “Grim Trigger (The Murder of Ellen Robb)”
	huffcrimeblog.com /?p=521 (3374 words)

	Class 1 – Course Introduction
		A player using a trigger strategy continues to choose the same action until some other player takes an action that "triggers" a different action by the first player.
		Grim Strategy: The firm: (1) cooperates in the first period, (2) cooperates in every succeeding period, provided the other firm does likewise, and (3) deviates forever after, if the other firm ever deviates.
		Grim Pricing Strategy: The firm: (1) sets a high price in the first period, (2) sets a high price in every succeeding period, provided the other firm does likewise, and (3) sets low prices forever after, if the other firm ever charges a low price.
	faculty.babson.edu /gwin/ecn3630/classes/class10suppl.htm (970 words)

	Folk theorem (game theory) - Wikipedia, the free encyclopedia
		A grim trigger strategy is a strategy which punishes an opponent for any deviation from some certain behavior.
		Then the players need only adhere to an almost grim trigger strategy under which any deviation from the strategy which will bring about the intended outcome is punished to a degree such that any gains made by the deviator on account of the deviation are exactly cancelled out.
		Thus, there is no advantage to any player for deviating from the course which will bring out the intended, and arbitrary outcome, and the game will proceed in exactly the manner to bring about that outcome.
	en.wikipedia.org /wiki/Folk_theorem_(game_theory) (487 words)

	A Bax/Bak-independent Mitochondrial Death Pathway Triggered by Drosophila Grim GH3 Domain in Mammalian Cells -- ...
		A, amino acid sequences of WT Grim GH3 and neighboring residues and of the mutant proteins synthesized.
		Grim induced apoptosis equally in both WT and DKO MEF (Fig.
		Grim induces rapid cytochrome c release to the cytosol.
	www.jbc.org /cgi/content/full/279/2/1368 (4789 words)

	Medieval Games
		Their adultery, and the negligence of the king in retaliating for the offence, sets in motion a grim trigger.
		Economist Prajit Dutta notes that "The trigger is grim in the sense that once the punishment phase is initiated, it is never revoked" (229).
		Simply put, the grim trigger sets off a downward spiral of reciprocating defections from which none of the knights can extricate the court.
	www.vanderbilt.edu /AnS/english/blakej/medieval/morte.htm (1079 words)

	[No title]
		Grim Trigger Punishment: A trigger strategy in game theory for a repeated game, such as an iterated prisoner's dilemma.
		Initially, a player using Grim Trigger will cooperate, but as soon as the opponent defects (thus satisfying the trigger condition), the player using Grim Trigger will defect(the punishment) for the remainder of the iterated game.
		Since a single defect by the opponent triggers defection forever, Grim Trigger is the most strictly unforgiving of strategies in an iterated game.
	www.xanga.com /ochs/446970183/aydeme.html (684 words)

	Game Theory Self Test: Trigger Strategies
		While the equilibrium results in profits of $5 for each firm, collusion can potentially result in payoffs of $10.
		The firms utilize trigger strategies in order to maintain the collusive outcome.
		Suppose that both firms adopt the grim trigger strategy.
	www2.owen.vanderbilt.edu /mike.shor/courses/game-theory/quiz/quiz3.html (178 words)

	Amsacta moorei Entomopoxvirus Inhibitor of Apoptosis Suppresses Cell Death by Binding Grim and Hid -- Li et al. 79 (6): ...
		Six-Myc-AMV-IAP precipitation was confirmed by Western blotting with rabbit polyclonal anti-Myc (upper panel), and the presence of Hid or Grim was determined by Western blot analysis with rat monoclonal anti-HA (middle panel).
		Plasmid transfection and expression of recombinant Hid or Grim were confirmed by Western blotting of whole cell lysate prior to immunoprecipitation (lower panel).
		Subcellular fractionation and Western blotting with anti-cytochrome c was performed to demonstrate that Hid and Grim trigger the endogenous mitochondrial apoptosis pathway.
	jvi.asm.org /cgi/content/full/79/6/3684 (4756 words)

	Airsoft Canada - Trigger Pull Force (Site not responding. Last check: 2007-10-13)
		You may find that although the trigger is easy to squeeze, semi auto performance may be poor as the spring may sluggishly disengage the trigger when you let go.
		Also, the gloved finger may not feel the trigger before shots are fired.
		If you really want to lighten your trigger pull, either stretch your trigger return spring, or regrind the trigger/sear surfaces so their release is shorter and lighter.
	www.airsoftcanada.com /showthread.php?t=38 (457 words)

	PD Tournament Result
		GRIM GRIM GBM ALLD ALLD TFTT ALLD RANDOM (Strategy used in Cultural Algorithm)
		GRIM ALLD TFTT ALLC RANDOM GRIM GRIM GBM (Strategy used in Cultural Algorithm)
		GRIM TFTT ALLD GRIM GRIM GBM ALLD ALLC (Strategy used in Cultural Algorithm)
	www.prisoners-dilemma.com /results/cec04/ipd_cec04_noise.html (279 words)

	SimulationExamples in DataInTheClassroom (Site not responding. Last check: 2007-10-13)
		Axelrod reached that conclusion through the use of a computer simulation which pitted various simple algorithms like Tit-for-tat or Grim Trigger in a repeated or iterated prisoner's dilemma round robin tournament.
		Using this implementation, one can test the robustness of his findings by comparing various strategies in a head-to-head competition.
		He reached that conclusion through the use of a computer simulation which pitted various simple algorithms like [Tit-for-tat:http://www.gametheory.net/Dictionary/TitforTat.html] or [Grim Trigger:http://www.gametheory.net/Dictionary/GrimTrigger.html] in a repeated or iterated prisoner's dilemma round robin tournament.
	www.sscnet.ucla.edu /soc/classroom/index.pl?diff=SimulationExamples (1179 words)

	[No title]
		(4 points) Now suppose that this game is infinitely repeated and grim trigger punishment strategies are followed.
		Find the range of (for which price high price high is the Nash equilibrium.
		We need to check present value of payoffs from playing price high each period to defecting and pricing low.
	www.bilkent.edu.tr /~cokten/econ433/quiz7ans.doc (299 words)

	Inducing a Self-Fulfilling Prophecy in Public Goods Games
		In the automata treatment it was announced that there might be automata playing a grim trigger strategy.
		That is, most participants actually followed a grim trigger strategy in the automata treatment resulting on an increase on the average contributions to the public good relative to the baseline treatment.
		Keywords: self-fulfilling prophecy, public goods game, grim trigger strategy,cooperation, automata, beliefs.
	ideas.repec.org /p/gra/wpaper/06-01.html (567 words)

	Grim Trigger Strategy - Game Theory .net
		A trigger strategy usually applied to repeated prisoner's dilemmas in which a player begins by cooperating in the first period, and continues to cooperate until a single defection by her opponent, following which, the player defects forever.
		Grim trigger is a severe trigger strategy since a single defection brings about an eternal end to cooperation, in contrast to the much more forgiving tit for tat.
		Play the repeated prisoner's dilemma on the applets page.
	www.gametheory.net /Dictionary/GrimTrigger.html (105 words)

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