Correlated Equilibria in Competitive Staff Selection Problem

This paper deals with an extension of the concept of correlated strategies to Markov stopping games. The Nash equilibrium approach to solving nonzero-sum stopping games may give multiple solutions. An arbitrator can suggest to each player the decision to be applied at each stage based on a joint distribution over the players' decisions. This is a form of equilibrium selection. Examples of correlated equilibria in nonzero-sum games related to the staff selection competition in the case of two departments are given. Utilitarian, egalitarian, republican and libertarian concepts of correlated equilibria selection are used.Comment: The idea of this paper was presented at Game Theory and Mathematical Economics, International Conference in Memory of Jerzy Los(1920 - 1998), Warsaw, September 200

A Model of Partnership Formation with Friction and Multiple Criteria

We present a model of partnership formation based on two discrete character traits. There are two classes of individual. Each individual observes a sequence of potential partners from the other class. The traits are referred to as attractiveness and character, respectively. All individuals prefer partners of high attractiveness and similar character. Attractiveness can be measured instantly. However, in order to observe the character of an individual, a costly interview (or date) is required. On observing the attractiveness of a prospective partner, an individual must decide whether he/she wishes to proceed to the interview stage. During the interview phase, the prospective pair observe each other's character and then decide whether they wish to form a pair. Mutual acceptance is required for both an interview to occur and a pair to form. An individual stops searching on nding a partner. A set of criteria based on the concept of a subgame perfect Nash equilibrium is used to define an equilibrium of this game. It is argued that under such a general formulation there may be multiple equilibria. For this reason, we define a specific formulation of the game, the so called symmetric version, which has a unique symmetric equilibrium. The form of this equilibrium has some similarities to the block separating equilibrium derived for classical models of two-sided mate choice and job search problems, but is essentially different.mutual mate choice, game theory, common preferences, homotypic preferences, subgame perfect equilibrium

Correlated equilibria in competitive staff selection problem

This paper deals with an extension of the concept of correlated strategies to Markov stopping games. The idea of this paper was presented at Game Theory and Mathematical Economics, International Conference in Memory of Jerzy Łoś (1920 - 1998), Warsaw, September 2004. The Nash equilibrium approach to solving nonzero-sum stopping games may give multiple solutions. An arbitrator can suggest to each player the decision to be applied at each stage based on a joint distribution over the players' decisions. This is a form of equilibrium selection. Examples of correlated equilibria in nonzero-sum games related to the staff selection competition in the case of two departments are given. Utilitarian, egalitarian, republican and libertarian concepts of correlated equilibria selection are used.correlated equilibria, Nash equilibria, non-zero sum game, secretary problem

The Paternalistic Relationship: Authenticity and credibility as a source of healthy relationships

This article explores the how the Paternalistic Leadership model can be viewed as part of a relationship-based paradigm of leadership, and can incorporate concepts such as credibility and authenticity. The review highlights the need to understand paternalistic leadership as an approach to establishing productive relationships within a cultural context, with implications for researchers and practitioners in both collectivist and individualistic cultures

Poziom zaufania i wiarygodność polskich studentów na tle międzynarodowym

This article presents the results of an experimental research carried out in Poland on selected aspects of social capital. These aspects were trust and trustworthiness. Our research was conducted on a total of 1540 students at universities in 16 Polish cities, capitals of 16 administrative regions, and was based on a commonly used experimental game termed the ‘Trust Game’. These results were compared with the results of studies performed in many other countries all over the world. It has been found that with regard to the proportion of money returned by Player B (a measure of trustworthiness), Poles (and more generally, those from Central and Eastern Europe) do not  significantly differ from other countries belonging to Western culture (Oceania, Western Europe, North America). Based on the proportion of the money transferred by Player A (a measure of generalised trust), there is only a weak indication that Poles are less trusting than other Europeans.Artykuł prezentuje wyniki badań eksperymentalnych nad wybranymi aspektami kapitału społecznego w Polsce na tle innych państw. Analizowane są w nim aspekty: zaufania i wiarygodności. W artykule porównano wyniki badań opartych na typowej grę eksperymentalną (grę „zaufanie”), w tym polskie badania autorów przeprowadzone na grupie 1540 studentów w 16 miastach – stolicach regionów Polski. Wyniki badań wskazują, że względem proporcji pieniędzy oddanych przez gracza B (miara wiarygodności), Polacy (oraz ogólnie mieszkańcy Europy Centralnej/Wschodniej) nie różnią od osób z kultury zachodniej (Oceania, Europa Zachodnia, Ameryka Północna). Biorąc pod uwagę proporcję pieniędzy przekazanych przez gracza A (miara zaufania), istnieją słabe tylko dowody, że Polacy przekazują mniejszą część (czyli są mniej ufni) niż pozostali Europejczycy

Improvement and further development of SSM/I overland parameter algorithms using the WetNet workstation

Since the launch of the DMSP Special Sensor Microwave/Imager (SSM/I), several algorithms have been developed to retrieve overland parameters. These include the present operational algorithms resulting from the Navy calibration/validation effort such as land surface type (Neale et al. 1990), land surface temperature (McFarland et al. 1990), surface moisture (McFarland and Neale, 1991) and snow parameters (McFarland and Neale, 1991). In addition, other work has been done including the classification of snow cover and precipitation using the SSM/I (Grody, 1991). Due to the empirical nature of most of the above mentioned algorithms, further research is warranted and improvements can probably be obtained through a combination of radiative transfer modelling to study the physical processes governing the microwave emissions at the SSM/I frequencies, and the incorporation of additional ground truth data and special cases into the regression data sets. We have proposed specifically to improve the retrieval of surface moisture and snow parameters using the WetNet SSM/I data sets along with ground truth information namely climatic variables from the NOAA cooperative network of weather stations as well as imagery from other satellite sensors such as the AVHRR and Thematic Mapper. In the case of surface moisture retrievals the characterization of vegetation density is of primary concern. The higher spatial resolution satellite imagery collected at concurrent periods will be used to characterize vegetation types and amounts which, along with radiative transfer modelling should lead to more physically based retrievals. Snow parameter retrieval algorithm improvement will initially concentrate on the classification of snowpacks (dry snow, wet snow, refrozen snow) and later on specific products such as snow water equivalent. Significant accomplishments in the past year are presented

Diffusion-induced Ramsey narrowing

A novel form of Ramsey narrowing is identified and characterized. For long-lived coherent atomic states coupled by laser fields, the diffusion of atoms in-and-out of the laser beam induces a spectral narrowing of the atomic resonance lineshape. Illustrative experiments and an intuitive analytical model are presented for this diffusion-induced Ramsey narrowing, which occurs commonly in optically-interrogated systems.Comment: 4 pages, 8 figure