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This thesis focuses on the relationship between crime and education, as well as macroeconomic and demographic factors such as police efficiency, GDP per capita, employment rate, population density, age and sexual composition of the society. We use the data of fourteen regions of the Czech Republic from 2000 to 2012. First, we apply the fixed-effect model in the data analysis, and further we use GMM for the estimation of new dynamic panel dataset. In addition, taking the possible time effects into account, we also add the time dummies in both regression models. Our finding finds the unexpectedly positive effects of secondary education with A-level exam, GDP per capita and the proportion of population aged 30-59 years old on most of criminal offences. On the other hand, the male ratio in population and the clearance rate are found to influence crimes negatively. Higher education and employment rate are also found to be related negatively with economic crimes. JEL Classification A14, E69, I21, I23, I25, I29, J19, R19 Keywords education, crime, employment, GDP, gender ratio, age, the Czech Republic, panel data, fixed-effect, GMM Author's e-mail cindy1114@livemail.tw Supervisor's e-mail brizova.ies@seznam.cz

Σε πολλά προβλήματα υπάρχει η ανάγκη να ασχοληθούμε ταυτόχρονα με την μελέτη δύο μεταβλητών ώστε να δούμε αν υπάρχει αλληλεξάρτηση μεταξύ τους, καθώς και να εντοπίσουμε την σχέση που εκφράζει αυτήν την αλληλεξάρτηση. Η σχέση αυτή ονομάζεται εξίσωση παλινδρόμησης και περιγράφει τον τρόπο αλληλεξάρτησης των μεταβλητών, τον κανόνα δηλαδή που διαμορφώνει τις τιμές της μιας μεταβλητής από τις τιμές της άλλης. Η πρώτη θα ονομάζεται ανεξάρτητη (ερμηνευτική) και η δεύτερη που οι τιμές της θα καθορίζονται από αυτές της πρώτης εξαρτημένη(ερμηνευόμενη). Κάποιες φορές οι ερμηνευτικές μεταβλητές που χρησιμοποιούμε είναι ποιοτικές και υπάρχουν τρόποι ποσοτικού προσδιορισμού των κατηγοριών μιας ποιοτικής μεταβλητής. Η μελέτη αυτή έχει ως στόχο την διερεύνηση της σχέσης του φύλου του μαθητή με τις επιδόσεις του στα μαθηματικά, ώστε να αναλυθούν οι διαφορές που εμφανίζονται μεταξύ των δυο φύλων. Για τον σκοπό αυτό θα χρησιμοποιηθούν γραμμικά μοντέλα, όπου όμως η ερμηνευτική μεταβλητή(το φύλο) είναι ποιοτική. Θα γίνει ποσοτικός προσδιορισμός των κατηγοριών της με την χρήση δύο τιμών: 0 αν είναι κορίτσι, 1 αν είναι αγόρι. Ο πληθυσμός της έρευνας αποτελείται από μαθητές γυμνασίου της ορεινής Αχαΐας που άρχισαν και τελείωσαν το γυμνάσιο στο συγκεκριμένο σχολείο. Για κάθε μαθητή έχει καταγραφεί από την καρτέλα του για κάθε τάξη η επίδοση στα μαθηματικά, στη γλώσσα, η συνολική επίδοση και το φύλο. / In many problems there is a need to simultaneously study two variables in order to see if there is interdependence between them and as well as to identify the equation that expresses this interdependence. This equation is called the regression equation and describes the way that these variables are interdependent. The first variable will be called independent (explanatory) and the second one, whose values are determined by the values of the first, will be called dependent (interpreted). In some cases the explanatory variables we use are qualitative and there are ways of quantifying the categories of a qualitative variable. This study aims to investigate the relationship between the sex of a student and his or hers performance in mathematics, in order to analyze the differences between the two sexes. For this purpose linear models will be used, where the interpretative variable (sex) is qualitative. We will quantify the categories with the use of two values: 0 if it's a girl and 1 if it's a boy. The survey population is consisted of students of a high school located in mountainous Achaia that started and finished studying at this particular school. For each student we have retrieved the performance in mathematics course, language course, overall performance and gender for each year studying in that school.

The main issue of this diploma work is the problem of migration and immigrants' position in the czech society. The way out and theoretical background is mainly to define the concept of migration and it's historical concept, the basic approaches to migration and migration theory are also included. Futher aim of this work is presenting the vision of interculturalism and multiculturalism and their effect on society. This entire work is conceived as theoretical-empirical, so it is supplemented by survey research on the situation of migrants in society where is elaborated the area of lifestyle, the working migration, the legislation and the deliquency. The main objective of this work is survey to represent the look of students on the topic of migration and to verify that their opinion is influenced by gender or field of study and whether it applied a different approach to immigrants coming from the EU and third countries. Keywords: the migration, the interculturalism, the multiculturalism, the opinion, the effect of gender, the effect of present field of study