The main aim diploma thesis was the evaluation possibilities of detection accounting fraud and misstatements in financial reports for the managing business corporations. Diploma thesis is divided into two main chapters on literature search and practical. Part of this work was the analysis of techniques and models of of detection performed on a case study of a selected accounting unit. For of individual models calculations were used accounting data from financial statements that were provided by AB, s. r. o. An entity shall compile both financial statements comprehensibly, to give a true and fair view of accounting and financial situation. Risk analysis for of detection manipulation of financial statements, I chose Beneish model, model CFEBT and Jones Nondiscretionary Accruals.

This master thesis deals with legal and ethical aspects of financial audit. The aim of this thesis is to assess whether the financial audit fulfils its main goal in these days. This aim should be reached by answering questions emerged from author's research connected with the thesis theme. Except for technical literature and rules relevant for audit profession, the significant sources of information are interviews with auditors, consultants and academics. Another important information source is author's personal experience with working for the large audit firm. Considering the growing economical globalization, the thesis deals with questions of audit in the Czech Republic as well as contemporary regulation development on the European Union level. Furthermore, there will be an analysis of the fall of the international audit firm Arthur Andersen and some linked accounting scandals, too.

Cette étude développe et teste empiriquement un modèle explicatif des comportements dysfonctionnels des auditeurs financiers. La revue de la littérature permet d'identifier les principaux facteurs ayant un impact significatif sur les dysfonctionnements (pression budgétaire et des délais...). Cette recherche propose d'étendre le périmètre des déterminants sous un angle relationnel et managérial. À cette fin, elle mobilise principalement l'approche de la relation supérieur - subordonné (LMX), mais aussi le role modeling et le style d'évaluation de la performance des auditeurs.Notre étude repose sur un questionnaire soumis aux auditeurs seniors opérant dans les grands réseaux de commissariat aux comptes constituant les principaux acteurs du marché de l'audit en France, plus précisément d'origines anglo-saxonne (Big 4) et française (Mazars).Pour tester nos hypothèses, la méthode d'estimation retenue est celle de type Seemingly Unrelated Regression (SUR).Les analyses soulignent que les trois dimensions du LMX, à savoir affection, loyauté et contribution ont un impact négatif et significatif sur les comportements adaptatifs (respectivement comportements non professionnels : CNP, mauvaise gestion de l’équipe d’audit : MGE et comportements réducteurs de qualité : QTB). En outre, les résultats mettent en lumière que, sous l’effet de mimétisme, les comportements managériaux adoptés par un supérieur réduisent le MGE, le QTB et le CNP. De plus, il a été observé qu’une perception favorable du soutien organisationnel et une évaluation axée sur des critères sociaux entraînent respectivement moins de QTB et de MGE. Enfin, certains résultats confirment ceux des recherches antérieures quant à l’impact du style d’évaluation basée sur des critères techniques, de l’engagement affectif, et de la pression liée au budget et aux délais sur les comportements dysfonctionnels. / This study develops and empirically tests an explanatory model in order to study the dysfunctional behaviors of financial auditors.The literature review allows to identify the main factors having a significant impact on malfunctions (budget pressure, time deadline pressure...). This research proposes extending the scope of the determinants in a relational and managerial perspective. To this end, it mobilizes mainly Leader-Member Exchange theory (LMX), but also the role modeling and the assessment style of auditors performance.Our study is based on a questionnaire which was sent to senior auditors who work in the large auditing networks which constitute the main actors of the audit market in France, specifically of Anglo-Saxon (Big 4) and French (Mazars) origins.To test our hypotheses, the estimation method of Seemingly Unrelated Regression (SUR) was applied.The results show that the three dimensions of Leader Member-Exchange (LMX), namely affection, loyalty and contribution have a negative and significant impact on the adaptive behaviors (respectively unprofessional behaviors: CNP, mismanagement of the audit team: MGE and Quality-Threatening Behavior: QTB). Also, results highlight under the effect of mimetic, managerial behaviors adopted by a superior have been shown to reduce the MGE, but also QTB and CNP. In addition, it was revealed that a favorable perception of organizational support and an evaluation focused on social criteria result in less QTB and MGE respectively.Finally, the analyses confirm the results of previous research concerning the impact of the style assessment based on technical criteria, affective commitment, budget pressure and time deadline pressure on such types of behavior.