Conclusion and termination of fixed-term work agreements has influence on legal status of employees, work quality, efficiency of undertaking’s activity as well as provides parties with opportunities to individualize operating conditions and implement reasonable objectives, increases employment. In addition to common labour law norms, according to peculiarities of employment relations there are also rights and guaranties determined by special legal norms applied to fixed-term work agreements. With reference to summarized experience of national legal regulation in Lithuania and other foreign countries, European Union labour law acts, judicial practice and research work results of other authors this work deals with legal employment relationship existing between employer and employee in the process of conclusion and termination of a fixed-term work agreement and paying the main attention to their particularities in the whole of similar relations. It analyzes the machinery of given legal relations’ regulation. There is a conception of a fixed-term work agreement presented. It determines the parties of this legal relation and the content of a fixed-term agreement settled by them. Fixed-term employment meets labour market requirements in upsurge of flexible work organization forms. One of these forms is also a fixed-term work agreement.

The diploma thesis deals with the age category of children which are under three years old and their potential to be accepted to nursery schools in this region. The thesis generally summarizes all the current knowledge about that if is it possible to place the children of this age into pre-school institutions and under what conditions. Thesis also deals with providing care, upbringing and education of children under three years, the overall readiness of kindergartens to fulfill those demands and also opinions of pedagogical public. In the theoretical part the author explains legislative requirements of accepting the children under three years into nursery schools. The author also describes and characterizes the child development between second and third year of life. The thesis deals with the specific peculiarities of these children their adaptation and describes their possibilities to be accepted by kindergartens. The author looks into the possibility to be accepted in conditions of social needs of families and also in terms of education legislation. The thesis in this part offers both partial and also international overview. In the practical part of the thesis the author carried out a research in kindergartens through interviews with the school principal and leading teachers to express their...

Diese Dissertation zielt darauf ab, ein besseres Verständnis für Anomalien und Insiderhandel zu schaffen, sowie die Verfügbarkeit von qualitativ hochwertigen Daten für den deutschen Aktienmarkt zu verbessern. Der erste Aufsatz beinhaltet eine verzerrungsfreie Zeitreihe von monatlichen Renditen deutscher Aktien für die Jahre 1954 bis 2013, die auf der Basis stabiler Regeln berechnet und gut dokumentiert ist. Im Weiteren enthält der Aufsatz eine detaillierte Beschreibung des deutschen Aktienmarktes und dessen Besonderheiten, insbesondere im Vergleich zu den USA. Der zweite Aufsatz zeigt am Beispiel des Fama/French Drei-Faktoren-Modells die Probleme auf, die Anbieter und Nutzer von Faktorendaten haben, die sich nicht auf die USA beziehen. Die empirische Analyse von sieben Faktorensets für Deutschland zeigt, dass die Übernahme von Faktormodellen in einen anderen Kapitalmarkt eine komplexe Thematik ist. Der Aufsatz gibt Anregungen für Nutzer und Anbieter von Faktorensets und zeigt, wie die Wahl des Faktorensets das Ergebnis einer Studie beeinflussen kann. Im dritten Aufsatz werden verschiedene zyklische und antizyklische Handelsstrategien hinsichtlich ihrer Performance im deutschen Aktienmarkt untersucht. Von den untersuchten Strategien erscheint nur Momentum konsequent abnormale Renditen zu erzielen, dies auch nach Transaktionskosten. Die vierte Arbeit untersucht öffentlich bekannt gegebene Aktientransaktionen von Insidern börsennotierter deutscher Unternehmen. Der Aufsatz zeigt, dass Insider von TecDAX-Unternehmen und ihre Imitatoren hohe und statistisch signifikante abnormale Renditen erzielen. Insgesamt zeigt die Dissertation, dass methodische Variationen, die Verwendung verschiedener Untersuchungsdesigns, die Datenqualität und die Sorgfalt beim Erstellen von empirischen Analysen zur Beurteilung der Robustheit und der Stabilität der Ergebnisse unerlässlich sind. Der deutsche Aktienmarkt scheint effizienter zu sein als bisherigere Studien typischerweise nahelegen. / This doctoral thesis aims to contribute to a better understanding of stock market anomalies and insider trading as well as to improve the availability of high quality data for the German stock market. The first paper provides a sixty-year time series of monthly returns on German stocks that is constructed on the basis of stable rules, is well documented, includes all return components, and is free of biases. The paper also contains a detailed description of the German stock market, its peculiarities, regulation and differences as compared to the U.S. The second paper uses the Fama/French three-factor model as an example to point out the problems that providers and users of non-U.S factor data sets face. The empirical analysis of seven different factor data sets available for Germany shows that exporting a specific factor model from the U.S. to another capital market is neither an easy nor well-defined task. The paper gives suggestions to users and creators of factor sets and shows how the choice of a factor set affects the result of an empirical study. The third paper provides evidence on how various contrarian, momentum and seasonality strategies perform in the German stock market. Among these strategies, only momentum investing appears to earn persistently non-zero returns, even after transaction costs. The fourth paper studies publicly disclosed stock transactions by insiders of listed German firms. The paper finds that insiders of TecDAX firms earn large and statistically significant abnormal returns net of transaction costs; for DAX insiders they are indistinguishable from zero. Overall, this thesis illustrates that methodological variations, the use of different specifications, data quality and care when preparing empirical analyses is essential in the assessment of the robustness and stability of results. In sum, the German stock market appears to be more efficient than previous studies have typically suggested.