We investigate the parameterized complexity of strategic behaviors in generalized scoring rules. In particular, we prove that the manipulation, control (all the 22 standard types), and bribery problems are fixed-parameter tractable for most of the generalized scoring rules, with respect to the number of candidates. Our results imply that all these strategic voting problems are fixed-parameter t...

The evolution of computing has lead to networks which are characterized by decentralization and decreasing institutional control over resources. Wireless Grids, mobile ad-hoc resource sharing networks, are challenging environments in which users strategic behaviors are crucial to system performance. We review the mechanisms employed to regulate strategic behavior online—technical, social, legal...

The evolution of computing has lead to networks which are characterized by decentralization and decreasing institutional control over resources. Wireless Grids, mobile ad-hoc resource sharing networks, are challenging environments in which users strategic behaviors are crucial to system performance. We review the mechanisms employed to regulate strategic behavior online—technical, social, legal...

game theory models decision makers' behaviors in strategic situations. since the structures of games are different, behavior and preferences of the players are different in various types of game. this paper reviews various situations of games. here, characteristics of some common games are discussed and compared. specifically, we focus on a group of games called symmetric games including p...

The purpose of this paper is to provide a new approach for investigating the competitive interactions in the large. Another purpose of this paper is to study emergent strategic behaviors and to analyze the effects of bounded rationality and the mimicry strategy in the competitive situations. We show how the society gropes for its way towards equilibrium in an imperfect world where agents are se...

BACKGROUND Shifts in the environment can compel health care organizations to change their strategies. However strategic change frequently fails because individuals do not adopt the behaviors necessary to successfully implement the new strategy. PURPOSE This study explores how three variables-agreement with new strategy, leaders' actions, and groups' general orientation toward change-can influ...

A dynamic game-based model of electronic payment systems is proposed, which is used to analyze formally security property of electronic payment protocols. Compared with previous work, the main contributions are as follows. Firstly, using strategic games to model channels in three kinds of qualities and participants of dishonest behaviors makes it able to analyze cooperative and adversarial beha...

We develop an original game-theoretical explanation of cyclical herd behaviors, where cyclicity occurs as a strategic equilibrium phenomena triggered by saturation effects associated with mass adoption of the same action. In our model, we show that herd behaviors occur almost surely, and so do cycles if saturation effects are present. Moreover, we show that the length of the transition phase be...

Do people know when they are seen as pressing too hard, yielding too readily, or having the right touch? And does awareness matter? We examined these questions in four studies. Study 1 used dyadic negotiations to reveal a modest link between targets’ self-views and counterparts’ views of targets’ assertiveness, showing that those seen as underand overassertive were likely to see themselves as a...