Wavelet-Based Prediction for Governance, Diversification and Value Creation Variables

We study the possibility of completing data bases of a sample of governance, diversification and value creation variables by providing a well adapted method to reconstruct the missing parts in order to obtain a complete sample to be applied for testing the ownership-structure/diversification relationship. It consists of a dynamic procedure based on wavelets. A comparison with Neural Networks, the most used method, is provided to prove the efficiency of the here-developed one. The empirical tests are conducted on a set of French firms.Comment: 22 page

Poland’s Energy Security in Light of a Statistical Analysis

In the research on Poland’s energy security compared to the European Union, data clustering was carried out according to the following methods: the Ward method, the full bond (furthest neighbourhood) method, analysis using the k-means method, and multidimensional scaling. In order to define the shifts in the direction of Poland’s energy security, synthetic indices for 2000 and 2008 have been calculated. Obtaining the answers to the above questions allowed for defining the main trends in Poland’s activities aimed at increasing its energy security.W badaniach nad bezpieczeństwem energetycznym Polski na tle Unii Europejskiej została zastosowana analiza skupień przeprowadzona metodą Warda i metodą pełnego wiązania (najdalszego sąsiedztwa) oraz analiza metodą k-średnich i skalowanie wielowymiarowe. W celu uchwycenia kierunków zmian bezpieczeństwa energetycznego Polski zostały obliczone wskaźniki syntetyczne dla 2000 r. i 2008 r. Uzyskanie odpowiedzi na powyższe pytania pozwoliło określić główne kierunki działania Polski na rzecz zwiększenia bezpieczeństwa energetycznego kraju

Effects of mergers and acquisitions on the economy: an industrial organization perspective

Consolidation and merger of corporations ; Industries

Global divergence of microbial genome sequences mediated by propagating fronts

We model the competition between recombination and point mutation in microbial genomes, and present evidence for two distinct phases, one uniform, the other genetically diverse. Depending on the specifics of homologous recombination, we find that global sequence divergence can be mediated by fronts propagating along the genome, whose characteristic signature on genome structure is elucidated, and apparently observed in closely-related {\it Bacillus} strains. Front propagation provides an emergent, generic mechanism for microbial "speciation", and suggests a classification of microorganisms on the basis of their propensity to support propagating fronts

The Single Market and The Geographical Diversification of Leading Firms in the EU

Geographical diversification describes the degree to which a firm’s operations in a particular industry are dispersed across countries. This paper presents evidence on the geographical diversification within the EU of the 290-odd largest manufacturing firms in Europe. We also explore how geographical diversification changed with the introduction of the Single Market. We highlight differences between firms’ home and foreign operations and study the variation across sectors and across EU countries. Ireland, which began its rapid FDI-fuelled convergence on average EU living standards over our data period, emerges as a special case and receives particular attention.Single Market, Geographical Diversification, FDI, Multinational Corporations

Director Reputation, Ceo-Board Power, And The Dynamics Of Board Interlocks

This study advances research on CEO-board relationships, interlocking directorates, and director reputation by examining how contests for intraorganizational power can affect interorganizational ties. We propose that powerful top managers seek to maintain their control by selecting and retaining board members with experience on other, passive boards and excluding individuals with experience on more active boards. We also propose that powerful boards similarly seek to maintain their control by favoring directors with a reputation for more actively monitoring management and avoiding directors with experience on passive boards. Hypotheses are tested longitudinally using CEO-board data taken from 491 of the largest U.S. corporations over a recent seven-year period. The findings suggest that variation in CEO-board power relationships across organizations has contributed to a segmentation of the corporate director network. We discuss how our perspective can reconcile contrary views and debates on whether increased board control has diffused across large U.S. corporations.(.)Managemen

An exploratory classification of ecological incubator environments in Wales

School of Managemen

Lineage tree analysis of immunoglobulin variable-region gene mutations in autoimmune diseases: chronic activation, normal selection

Autoimmune diseases show high diversity in the affected organs, clinical manifestations and disease dynamics. Yet they all share common features, such as the ectopic germinal centers found in many affected tissues. Lineage trees depict the diversification, via somatic hypermutation (SHM), of immunoglobulin variable-region (IGV) genes. We previously developed an algorithm for quantifying the graphical properties of IGV gene lineage trees, allowing evaluation of the dynamical interplay between SHM and antigen-driven selection in different lymphoid tissues, species, and disease situations. Here, we apply this method to ectopic GC B cell clones from patients with Myasthenia Gravis, Rheumatoid Arthritis, and Sjögren’s Syndrome, using data scaling to minimize the effects of the large variability due to methodological differences between groups. Autoimmune trees were found to be significantly larger relative to normal controls. In contrast, comparison of the measurements for tree branching indicated that similar selection pressure operates on autoimmune and normal control clones

How do regions diversify over time? Industry relatedness and the development of new growth paths in regions

The question of how new regional growth paths emerge has been raised by many leading economic geographers. From an evolutionary perspective, there are strong reasons to believe that regions are most likely to branch into industries that are technologically related to the preexisting industries in the region. Employing a new indicator of technological relatedness between manufacturing industries, we analyze the economic evolution of 70 Swedish regions during the period 1969-2002 using detailed plant-level data. Our analyses show that the long-term evolution of the economic landscape in Sweden is subject to strong path dependencies. Industries that were technologically related to pre-existing industries in a region had a higher probability to enter the region, as compared to unrelated industries. And unrelated industries had a higher probability to exit the region. Moreover, we found that industrial profiles of Swedish regions showed a high degree of technological coherence. Despite substantial structural change, this coherence was very persistent over time. Our methodology also proved useful when focusing on the economic evolution of one particular region. Our analysis showed that the Linkˆping region increased its industrial coherence during 30 years, due to the entry of industries that were closely related to its regional portfolio on the one hand, and the exit of industries that were technologically peripheral to its regional portfolio on the other hand. In sum, we find systematic evidence that the rise and fall of industries is strongly conditioned by industrial relatedness at the regional level.technological relatedness, related variety, regional branching, regional diversification

Economic Evidence on the Effects of the Indian Gaming Regulatory Act on Indians and Non-Indians

When Congress passed the Indian Gaming Regulatory Act (IGRA) in 1988, some tribal leaders perceived the state compacting provision required for casino-style gaming on tribal lands as an erosion of tribal sovereignty that could undermine their early economic development successes and disrupt a precariously successful federal-tribal relationship with regard to tribal self-determination. In hindsight, however, the substantial growth and myriad positive impacts of the first twenty years of tribal gaming under IGRA reveal the ways that the federal regulatory framework laid out in the law resolved numerous legal dilemmas that had plagued tribal gaming expansion. It is now clear that the predictability provided by successful tribal- state compact negotiations allowed the necessary capital investments to produce a robust tribal government gaming industry across much of Indian Country. Therefore, an analysis of tribal government gaming’s impacts on tribal communities and neighboring localities is best framed in the context of the federal law that continues to shape the industry today