The finite Bruck Loops

We continue the work by Aschbacher, Kinyon and Phillips [AKP] as well as of Glauberman [Glaub1,2] by describing the structure of the finite Bruck loops. We show essentially that a finite Bruck loop $X$ is the direct product of a Bruck loop of odd order with either a soluble Bruck loop of 2-power order or a product of loops related to the groups $PSL_2(q)$, $q= 9$ or $q \geq 5$ a Fermat prime. The latter possibillity does occur as is shown in [Nag1, BS]. As corollaries we obtain versions of Sylow's, Lagrange's and Hall's Theorems for loops.Comment: 15 page

On Bruck Loops of 2-power Exponent

The goal of this paper is two-fold. First we provide the information needed to study Bol, $A_r$ or Bruck loops by applying group theoretic methods. This information is used in this paper as well as in [BS3] and in [S]. Moreover, we determine the groups associated to Bruck loops of 2-power exponent under the assumption that every nonabelian simple group $S$ is either passive or isomorphic to \PSL_2(q), $q-1 \ge 4$ a $2$-power. In a separate paper it is proven that indeed every nonabelian simple group $S$ is either passive or isomorphic to \PSL_2(q), $q-1 \ge 4$ a $2$-power [S]. The results obtained here are used in [BS3], where we determine the structure of the groups associated to the finite Bruck loops.Comment: 26 page

Spectral properties of a class of random walks on locally finite groups

We study some spectral properties of random walks on infinite countable amenable groups with an emphasis on locally finite groups, e.g. the infinite symmetric group. On locally finite groups, the random walks under consideration are driven by infinite divisible distributions. This allows us to embed our random walks into continuous time L\'evy processes whose heat kernels have shapes similar to the ones of alpha-stable processes. We obtain examples of fast/slow decays of return probabilities, a recurrence criterion, exact values and estimates of isospectral profiles and spectral distributions, formulae and estimates for the escape rates and for heat kernels.Comment: 62 pages, 1 figure, 2 table

Clarifying the Dominant Logic Construct by Disentangling and Reassembling its Dimensions

Since its introduction, Prahalad and Bettis's concept of dominant logic has informed a variety of scholarly conversations in management and strategy research. However, scholars have interpreted dominant logic in different ways, emphasizing different aspects, such as managerial mindsets, administrative tools and management functions, as defining elements. Similarly, empirical studies have captured various aspects, such as meanings of entrepreneurs, observable strategic decisions and business model similarity, as indicators of dominant logic. Consequently, the concept lacks analytical clarity, and it is difficult to compare or generalize findings from this diverse set of studies. The aim of this review is to improve conceptual clarity by analysing, comparing and evaluating the existing interpretations and assessments of dominant logic in 94 studies. In the first part of the review, by disentangling the interpretations of the concept, we show that dominant logic consists of four defining dimensions: (i) shared mental models; (ii) values and premises; (iii) organizational practices; and (iv) organizing structures. In the second part, we reassemble dominant logic into an integrative model and theorize about how these dimensions operate in concert to produce a firm's dominant logic. Thus, our main contribution is a clarification and synthesis of the literature, which comes with implications on how future research can conceptualize and operationalize dominant logic more consistently

Woodwinds of the Las Vegas Philharmonic

Program listing performers and works performe

Economic Migration, Networks and Human Capital Transferability from the New European Borderlands. A Comparison of Five Eastern European Countries.

In the paper we use a unique new data set which has been collected in late 2006 in Armenia, Belarus, Georgia, Moldova and Ukraine to investigate the determinants for short term migration and its destination and duration patterns. Special attention is paid to the role played by personal networks to Eastern and Western destinations as well as investments into the transferability of human capital made by migrants prior to their stay abroad. We find that many determinants and migration patterns are quite similar across the CIS countries under consideration but exhibit some surprising differences to standard results from the migration literature, e.g. the prevalence of older migrants and the low importance of children in the migration decision process. Networks and human capital transferability are the main explaining factors for the migration and destination decision, a result proofing robust after correcting for endogeneity. We expect that migration is likely to grow in importance for some countries at the European Borderlands, as networks develop and the costs of migration decrease. However, our analysis reveals that fears of brain drain have little substance as the educational background of migrants is rather low. As a considerable number of migrants have invested into destination country specific human capital prior to migration, this improved human capital endowment can benefit both, migrants and the society of sending countries, alike. --Migration,human capital transferability,migration networks,cross-country study

Temporary Labour Migration and Welfare at the New European Fringe : A Comparison of Five Eastern European Countries

This paper investigates patterns and determinants of temporary labour migration in Armenia, Belarus, Georgia, Moldova and Ukraine after EU enlargement in 2004. Migration incidence, destination choices and migration determinants differ between poorer and better-off countries. Although broadly in line with general results from the migration literature, we observe some peculiarities like the high share of older migrants and a modest role of family obligations in the migration decision process. We find no indication of a brain drain related to temporary migration in sending regions as the educational background of migrants is rather low. Migration is used as household insurance against unemployment and is associated with lower incidence of poverty. This finding remains robust when attempting to reduce the potential omitted variable bias with an instrumental variable approach.Temporary migration, welfare, Eastern Europe, cross-country study

Temporary Labour Migration and Welfare at the New European Fringe: A Comparison of Five Eastern European Countries

This paper investigates patterns and determinants of temporary labour migration in Armenia, Belarus, Georgia, Moldova and Ukraine after EU enlargement in 2004. Migration incidence, destination choices and migration determinants differ between poorer and better-off countries. Although broadly in line with general results from the migration literature, we observe some peculiarities like the high share of older migrants and a modest role of family obligations in the migration decision process. We find no indication of a brain drain related to temporary migration in sending regions as the educational background of migrants is rather low. Migration is used as household insurance against unemployment and is associated with lower incidence of poverty. This finding remains robust when attempting to reduce the potential omitted variable bias with an instrumental variable approach.temporary migration, welfare, Eastern Europe, cross-country study