scholarly journals Simple Games of Information Transmission

2012 ◽  
Vol 34 (2) ◽  
Author(s):  
Bernd Lahno

AbstractCommunication is an inherently strategic matter. This paper introduces simple game theoretic models of information transmission to identify different forms of uncertainty which may pose a problem of trust in testimony. Strategic analysis suggests discriminating between trust in integrity, trust in competence, trust in (the will to invest) effort and trust in honesty. Whereas uncertainty about the sender's honesty or integrity may directly influence a rational receiver's readiness to rely on sender's statements, neither uncertainty about the competence of a sender nor uncertainty about his willingness to invest effort has any direct impact on rational reliance on its own. In this regard, trust in honesty and trust in integrity appear to be more basic than trust in competence or effort.

2009 ◽  
Vol 10 (1) ◽  
pp. 106-113
Author(s):  
Eric Barnes ◽  

The problem of dirty hands concerns the apparently inevitable need for effective politicians to do what is ethically wrong. This essay discusses a related problem in democratic elections of politicians being unwilling to commit themselves to precise positions on controversial policy issues. Given certain plausible assumptions, I demonstrate using a simple game theoretic model that there is an incentive structure for political candidates that is damaging to the public good. I contrast this problem with the classic prisoner’s dilemma and then go on to discuss some possible strategies for overcoming this problem by an improved system of political debates.


2020 ◽  
pp. 106591292091120
Author(s):  
Muhammet A. Bas ◽  
Elena V. McLean

This study examines the relationship between disaster risks and interstate conflict. We argue that in disaster-prone areas actors’ rational expectations about the likelihood and magnitude of potential future disasters can make conflict more likely. The relationship emerges when future disasters are viewed as shocks that are expected to shift the relative power balance among states. If large enough, such expected shifts can generate commitment problems and cause conflict even before any disasters take place. Our approach represents a shift of focus from previous research, which investigates the effect of actual disasters and ignores rational expectations regarding future events. We use a simple game-theoretic model to highlight the commitment problem caused by disaster risks. We then discuss and apply an empirical strategy enabling us to disentangle effects of disaster proneness from effects of actual disaster events. Our results indicate that greater disaster risks are indeed associated with a higher likelihood of interstate conflict.


2017 ◽  
Vol 51 (8) ◽  
pp. 1042-1073 ◽  
Author(s):  
Tiberiu Dragu ◽  
Yonatan Lupu

How can human rights abuses be prevented or reduced? Using a simple game-theoretic model, we demonstrate that repression can become a coordination game when the potential for abuses is greatest: when dissent against a regime has grown sufficiently powerful. In such scenarios, repression depends on how the leader’s agents coordinate on implementing a repression order. If and to the extent agents believe other agents will not comply with an order to repress, leaders can expect agents to disobey orders and will be less likely to order repression. This logic of expectations constitutes a third mechanism for constraining repression, in addition to sanctioning (i.e., the logic of consequences) and normative mechanisms (i.e., the logic of appropriateness). We formally explore how the logic of expectations can constrain the implementation of repression and also show that the logic of expectations has the greatest potential to constrain repression in middle regimes or “anocracies.” In turn, this has broader implications for the strategies human rights advocates use in such regimes, how leaders structure their security forces, and for the study of why legal rules might be especially effective in such regimes.


2004 ◽  
Vol 9 (1) ◽  
pp. 43-49 ◽  
Author(s):  
Nicolai J. Foss ◽  
Tore Kristensen ◽  
Ricky Wilke

This paper draws on ideas in economics and game theory to develop a new theory of marketing in the emerging network economy. The paper argues that in a network economy, firms and consumers will confront “coordination problems”. With the emerging network economy all this becomes urgent because the availability and cost of information decreases. Also, timing issues become urgent as millions of people get access to the same information simultaneously. That explains why events where masses of viewers simultaneously participate in the same events become so important. The paper introduces a simple game theoretic model and discusses marketing applications and possible strategies. These strategies imply considerable use of communication resources in order to fulfil the common knowledge requirements.


2010 ◽  
Vol 12 (03) ◽  
pp. 211-222
Author(s):  
EVAN SHELLSHEAR

This paper investigates the suitability of new apportionment methods based on the idea of preserving the coalition function of the simple game generated by the populations of the states of some country. The new methods fill a gap in the literature concerning apportionment methods based on winning coalitions. The main results in this paper show that the new apportionment methods do not satisfy desirable properties such as house monotonicity, quota, etc.


2007 ◽  
Vol 44 (4) ◽  
pp. 852-864 ◽  
Author(s):  
Josep Freixas

Owen's multilinear extension (MLE) of a game is a very important tool in game theory and particularly in the field of simple games. Among other applications it serves to efficiently compute several solution concepts. In this paper we provide bounds for the MLE. Apart from its self-contained theoretical interest, the bounds offer the means in voting system studies of approximating the probability that a proposal is approved in a particular simple game having a complex component arrangement. The practical interest of the bounds is that they can be useful for simple games having a tedious MLE to evaluate exactly, but whose minimal winning coalitions and minimal blocking coalitions can be determined by inspection. Such simple games are quite numerous.


2017 ◽  
Vol 18 (4) ◽  
pp. 585-598 ◽  
Author(s):  
Jon REIERSEN

In his book Trust. The Evolutionary Game of Mind and Society, social psychologist Toshio Yamagishi (2011) states that trust can be viewed as a “booster rocket” that provides the necessary push for the take-off from the secure ground of committed relations. This article formalizes this idea with the help of a simple game theoretic model. The article looks at a situation where networks of personalized exchange relationships provide assurance against untrustworthy behaviour but reduce the opportunity to profit from trade in larger markets. Assuming that the anonymous market contains both trustworthy and untrustworthy types, it is demonstrated that mutual trust relations can emerge, even when there is a clear danger of opportunism and the possibility of repeated interaction is ruled out. From a more practical perspective, the model provides an insight into the role trust plays for the decision to transact in networks or markets. It is also demonstrated that networks appear as mixed blessings. Networks reduce the problems arising from incomplete contracts and behavioural risk, but they also restrict individuals’ possibility to reap potential gains produced in larger markets.


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