30 research outputs found
The computation of expected values and moments of special polynomials via characteristic and generating functions
No full textIs the Event Study Methodology Useful for Merger Analysis? A Comparison of Stock Market and Accounting Data
No full textWe use a sample of 167 mergers during the period 1990-2002 involving 544 firms either as merging firms or competitors. We contrast a measure of the merger’s profitability based on event studies with one based on accounting data. We find positive and significant correlations between them when using a long window around the announcement date. ZUSAMMENFASSUNG - (Ist die "event study" Methodologie nützlich für die Analyse von Fusionen? Ein Vergleich von Aktienmärkte und Bilanzdaten) Wir analysieren eine Stichprobe von 167 Fusionen, die zwischen 1990 und 2002 stattgefunden haben und welche 544 Unternehmen -entweder als fusionierende Parteien oder als Wettbewerber- involviert haben. Wir vergleichen eine auf "event studies" basierende Rentabilitätsmaß der Fusion zu einer alternativen Maß, die durch Bilanzdaten konstruiert wurde. Wir finden, dass diese zwei maße positiv und signifikant korrelieren besonders wenn wir ein langes Fenster um die Fusionsankündigung in dem "event study" benutzen.Mergers, Merger Control, Event Studies, Ex-post Evaluation
Ethnic differentiation of fertility in Kazakhstan
No full textEthnic differentiation of fertility in Kazakhstan Abstract This paper examines ethnic differentials in fertility in Kazakhstan using data from the Statistical Agency of Kazakhstan from 1999 to 2006. The study focuses on four major ethnic groups including Kazakhs, Russians, Ukrainians and Uzbeks which account for 90% of the country's population. The paper lays emphasis on comparison and determination of differences in fertility trends among the chosen ethnic groups. In order to describe the main reasons of differences in fertility trends in greater detail, the author analyzed birth orders in fertility in the groups. At the same time, the paper presents ethnic structure of Kazakhstan's population and within each ethnicity it shows age structure which also determines fertility trends. Keywords: Ethnicity, ethnic groups, fertility, differentiation, Kazakhstan
Regional development of smoking-related mortality in the Czech Republic in 1994-2009
No full textRegional development of smoking-related mortality in the Czech Republic in 1994-2009 Abstract This work deals with the development of mortality from smoking-related diseases in the Czech Republic and regions of the Czech Republic in 1994-2009. Analytical part assesses the development of mortality on selected groups of diagnoses or individual causes of death associated with smoking in the Czech Republic. For the regional analysis, six specific diagnoses with the largest share of the total intensity of mortality in the Czech Republic are chosen. The author concludes that the intensity of mortality from all diseases related to smoking decreased among both sexes in all regions, mainly due to decline in mortality from circulatory system diseases. There was observed opposed development of the intensity of mortality from the cause of malignant neoplasm of bronchus, trachea and lungs between the sexes, where there were reduced the level of mortality by men and increased by women. From the results of the analysis it is evident that the areas with the highest intensity of mortality related to smoking are in the north-western Bohemia. Keywords: mortality, causes of death, smoking, Czech Republic, region
Development of the intensity of alcohol-related mortality in regions of the Czech Republic in 1994-2009
No full textThe Development of the intensity of alcohol-related mortality in regions of the Czech Republic in 1994-2009 Abstract The main aim of the thesis is to analyze the development of the intensity of alcohol-related mortality in regions of the Czech Republic in 1994-2009. Three categories of causes of death related to alcohol are selected according to the classification chosen. The author analyses the intensity of mortality from all causes alcohol-related mortality, from cause of death of alcoholic liver disease and from external causes of death related to alcohol. She concludes that the level of mortality from all causes alcohol-related mortality and external causes of death related to alcohol improves whereas the level of mortality from cause of death of alcohol liver disease worsens. From the results of the analysis it follows that the areas with the highest intensity of mortality related to alcohol are eastern Moravia and north-western Bohemia. Key words: mortality, diseases alcohol-related, causes of death, standardized mortality rates, the Czech Republic, region
Do the identities of managers matter for corporate performance?
No full textThis master’s thesis aims to examine whether corporate managers and specifically CEOs and
their identities, influence performance in the companies they lead. The term identity hereby
refers to a broad set of attributes of a manager, ranging from externally observable
characteristics such as age or gender, over personal skills such as experience and education to
generalized characteristics such as attitude towards leadership. Managers, as referred to in this
thesis, are members of organizations, who are expected to be of sufficient importance to the
company’s success to be relevant to financial performance; these are CEOs and other managers
in principal roles. It is found that the identities of managers matter for firm performance in a
significant and a manifold way. This argumentation is founded on a comprehensive overview
of existing literature. Further, an empirical study conducted by the author confirms literature
findings
Factors affecting mortality in countries with the highest life expectancy at birth with focus on the influence of tobacco smoking
No full textFactors affecting mortality in countries with the highest life expectancy at birth with focus on the influence of tobacco smoking Abstract This bachelor thesis focuses on the factors influencing mortality levels, specifically analysing the influence of tobacco smoking in countries with highest life expectancies - Japan and Switzerland. Trends in smoking prevalence rates from the mid-20th century to the present are analysed. In both countries, the prevalence of smoking is higher in men than in women, but the gap is narrowing over time. Then, author constructs life tables using data from WHO Mortality Database and analyses mortality in Japan and Switzerland between 1995 and 2017, focusing on life expectancy at birth and at ages of 35 and 65 years. The actual development of these indicators is compared with two hypothetical developments, assuming the elimination of smoking attributable mortality and a constant level of smoking attributable mortality. The results indicate that high life expectancies in Japan and Switzerland are not caused by low numbers of smokers in these countries. Keywords: mortality, life expectancy, determinants of health, smoking, Japan, Switzerlan
How Does Building Occupancy Influence Energy Efficiency of HVAC Systems?
No full textAbstractOccupancy (presence and number of occupants) is one of the most important factors impacting energy efficiency of HVAC systems as occupancy determines heating/cooling loads on the demand side by varying conditioning periods and settings. Despite the high volume of research activities in demand-driven HVAC controls, how and when occupancy should be linked with heating/cooling loads for sustained and maximum efficiency are still not clear as occupancy is stochastic in nature, and there exists heat transfer and balance among zones, as well as heat gain and loss through a building's envelope. There is no solution to date that can be directly applied in different buildings with different HVAC systems and occupancies. This paper systematically investigates how the occupancy influences the energy efficiency of HVAC systems. Specifically, the influence is analyzed from three perspectives of occupancy transitions, variations, and heterogeneity. The results demonstrated the energy significance of the three perspectives and provided the general ways of quantifying the influences of occupancy
Collision dynamics of excited sodium molecules
No full textCollision cross section for transfer of anisotropy arising from collisions between electronically excited sodium dimer and ground level argon atoms has been examined. The experimental method is based on a polarization spectroscopy using a sophisticated resonant cw-pump-stimulated emission probe technique. Measurement of polarization from analysis of the emitted light is a very powerful method gaining information about the inelastic collision process between the electronically excited molecules and other collision partners. From the measurement, anisotropy-dependent polarization spectra of the Na with Ar has been investigated.\footnote{The author gratefully acknowledges financial support from the
National Science Foundation (Grant No. NSF-PHY-1309571).}Made available in DSpace on 2014-09-17T16:56:25Z (GMT). No. of bitstreams: 3
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