Cette thèse de doctorat composée de trois chapitres contribue au développement de tests statistiques et à analyser la transmission financière dans un cadre multivarié hétéroscédastique. Le premier chapitre propose deux tests du multiplicateur de Lagrange de constance des corrélations conditionnelles dans les modèles GARCH multivariés. Si l'hypothèse nulle repose sur des corrélations conditionnelles constantes, l'hypothèse alternative propose une première spécification basée sur des réseaux de neurones artificiels et une seconde représentée par une forme fonctionnelle inconnue qui est linéarisée à l'aide d'un développement de Taylor.Dans le deuxième chapitre, un nouveau modèle est introduit dans le but de tester la non-linéarité des (co)variances conditionnelles. Si l'hypothèse nulle repose sur une fonction linéaire des innovations retardées au carré et des (co)variances conditionnelles, l'hypothèse alternative se caractérise quant à elle par une fonction de transition non-linéaire : exponentielle ou logistique ; une configuration avec effets de levier est également proposée. Dans les deux premiers chapitres, les expériences de simulations et les illustrations empiriques montrent les bonnes performances de nos tests de mauvaise spécification.Le dernier chapitre étudie la transmission d'information en séance et hors séance de cotation en termes de rendements et de volatilités entre la Chine, l'Amérique et l'Europe. Le problème d'asynchronicité est considéré avec soin dans la modélisation bivariée avec la Chine comme référence. / This Ph.D. thesis composed by three chapters contributes to the development of test statistics and to analyse financial transmission in a multivariate heteroskedastic framework.The first chapter proposes two Lagrange multiplier tests of constancy of conditional correlations in multivariate GARCH models. Whether the null hypothesis is based on constant conditional correlations, the alternative hypothesis proposes a first specification based on artificial neural networks, and a second specification based on an unknown functional form linearised by a Taylor expansion.In the second chapter, a new model is introduced in order to test for nonlinearity in conditional (co)variances. Whether the null hypothesis is based on a linear function of the lagged squared innovations and the conditional (co)variances, the alternative hypothesis is characterised by a nonlinear exponential or logistic transition function; a configuration with leverage effects is also proposed.In the two first chapters, simulation experiments and empirical illustrations show the good performances of our misspecification tests.The last chapter studies daytime and overnight information transmission in terms of returns and volatilities between China, America and Europe. The asynchronicity issue is carefully considered in the bivariate modelling with China as benchmark.

The aim of the thesis is to describe the purpose, content and methods of economic analysis in the theoretical part. The application part continues by application of the theoretical findings to financial statements of ITW PRONOVIA, s.r.o. company of years 2009 to 2014. The most important elements are horizontal and vertical analysis, ratio indicators, DuPont analysis, working-capital analysis, economic value added (EVA), Value and Bankruptcy models and labor productivity analysis.

Thesis ?Value generation and management in retail/whole chains? was started with intention to offer enhanced theoretical basis for research in this area, that is still represented insufficiently in comparison to importance of retail/whole chains in whole economy. Additionally the practical inconsistency between trading rules demostrated to customers and trading partners of chains (including visible behaviour of chains) and value driving variables bears interest. The thesis targets following: search and indication of potential value drivers (value affecting variables) of retail/wholesale chains description of such value affecting variables, testing of relevance of such value affecting variables synthesis of description and relevance (importance) gives recommendations and measures for value creation in these chains Based on analysis of external conditions and internal sources were identified following value generating areas: strategy of retail/wholesale chain growing from internal source of competitive advantage ? strategical differentiation, issue of expansion (understood both as strategical variable - potential competitive advantage, and external threat of concentration value creating variables of core business of retail/wholesale chain: price strategy managing of liquidity stabilization of operating profit in condition of fluctuation sales

The aim of the submitted thesis „Application of financial analysis in a company“ is to perform financial analysis of a enterprise IMOS Brno, a.s. from 2001 to 2007 and to make suggestions for improvement of company financial position. Results of this master´s thesis will give information for a company management and its decision-making process.

The master’s thesis analyses financial health of the company SLB, s.r.o. in the years 2004 – 2007 at the basis of selected methods of the financial analysis. It comprises proposals of possible of identified problems which should result in the improvement of financial situation of the firm in future years.

This master’s thesis deals with financial analysis of company Tenza, a.s. The results of financial analysis of this company are compared with results of competitive companies using modern and classical methods. It includes theoretical part which is necessary to complete the analysis, graphical and verbal interpretation of the results. At the conclusion of this thesis the observed companies are compared and possible steps to improve problematic points of solved problems are proposed.

The master´s thesis is concerned with financial analysis and evaluates financial health of company Pramet Tools, s. r. o. in the years 2004 - 2008. The aim of this thesis is to apply basic methods of financial analysis to analyze financial situation in chosen company and based on achieved results to propose the possible solutions of identified problems which should result in the improvement of financial situation of the company in future years.

The master’s thesis analyses financial health of the company IFE-CR, a.s. in the years 2004 – 2008 at the basis of selected methods of the financial analysis. It comprises proposals of possible of identified problems which should result in the improvement of financial situation of the firm in future years.

The Financial analysis of Pramos Ltd. in 2008 – 2012 including the analysis of the current state of the company. Based on the theoretic part, the individual figures and results were processed, the evaluation of the overall state was done and proposals for improvement or change are present – all to be found in the practical part of the thesis.

This thesis aims to evaluate the financial situation of the company KALÁB - construction company, Ltd. and to make suggestions for its improvement. The company engages in construction and development activities. It is a renowned company that has a well established position in the market. The thesis contains an analysis of the status quo, which is the basis of proposals for improvements for the future. The aim of the thesis is to identify weaknesses and find methods that will eliminate these defects in the future.