The thesis deals with two types of organizational structure of a joint-stock company regard to changing legislation, effective from 1st January 2014. The work is initially focused on new type of organizational structure - a monistic organizational structure. It consists of the board of directors and the statutory director. The work explains the operation and scope of the company's bodies. The second type of organizational structure, which analyses the work, is dual organizational structure. It consists of the management board and the supervisory board. The work is based on the Civil Code and the Business Corporations Act.

This dissertation is composed of four essays that empirically investigate three topics in financial economics; financial stress and its leading indicators, the relationship between bank competition and financial stability, and the link between management board composition and bank risk. In the first essay we examine which variables have predictive power for financial stress in 25 OECD countries, using a recently constructed financial stress index. We find that panel models can hardly explain FSI dynamics. Although better results are achieved in country models, our findings suggest that financial stress is hard to predict out-of- sample despite the reasonably good in-sample performance of the models. The second essay develops an early warning framework for assessing systemic risks and predicting systemic events over two horizons of different length on a panel of 14 countries. We build a financial stress index to identify the starting dates of systemic financial crises and select crisis-leading indicators in a two-step approach; we find relevant prediction horizons for each indicator and employ Bayesian model averaging to identify the most useful predictors. We find superior performance of the long-horizon model for the Czech Republic. The theoretical literature gives conflicting predictions on how bank...