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Comparison of Factors Determining Czech Exports in Different Aggregations: Analysis by means of an Adjusted Gravity Model
Smotlachová, Eva ; Benáček, Vladimír (advisor) ; Bobková, Božena (referee)
The aim of the thesis is to estimate determinants of Czech export. The key novelty of the research consists in estimating export flows at three different levels of aggregation (total, machinery, automobiles) and a subsequent comparison of results. An augmented gravity model is implemented for the empirical research and estimated with the use of Ordinary least squares (including time or country dummies) and Poisson pseudo maximum likelihood estimators. Consequently, we propose the comparison based on the Poisson estimates due to incontestable weaknesses of the OLS estimator. Besides, we emphasize the importance of identifying the panel data structure, as we have obtained different results under the two structures (time series and cross-sectional). The predicted models reveal a substantial impact of home and partner's GDP, distance and the European Union. Total and machinery export seem to follow same tendencies, whereas the development of Czech automobile export differs and evolves on an idiosyncratic path. Therefore, it does not coincide with a path expected by trade theories based on the assumption of perfect competitive markets.
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Pricing of bonds and credit default swaps: Evidence from a panel of European companies
Smotlachová, Eva ; Baruník, Jozef (advisor) ; Malinská, Barbora (referee)
The aim of the thesis is to investigate determinants of corporate bond and CDS contract pricing using a sample of 34 European companies over the period 2008-2014. This work extends existing literature by studying differences in determinants of bond and CDS spreads not only for different time periods, but also for different sets of companies grouped by geography, industry, and profitability. The results reveal that bond and CDS spreads are generally influenced by similar factors, with a company's credit rating being the most influential factor. Nevertheless, the investigation of time-specific estimations suggests that firm-specific factors play a more significant role in pricing bonds, whereas market factors have a higher impact on CDS spreads. The analysis of the subsamples reveals substantial differences in regression results for individual groups of companies, which suggests a presence of idiosyncratic factors. Our conclusion is that the pricing of bonds and CDS contracts is not only time-dependent, but also unique for different groups of companies, which implies a necessity to use different pricing models for individual contracts.
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Comparison of Factors Determining Czech Exports in Different Aggregations: Analysis by means of an Adjusted Gravity Model
Smotlachová, Eva ; Benáček, Vladimír (advisor) ; Bobková, Božena (referee)
The aim of the thesis is to estimate determinants of Czech export. The key novelty of the research consists in estimating export flows at three different levels of aggregation (total, machinery, automobiles) and a subsequent comparison of results. An augmented gravity model is implemented for the empirical research and estimated with the use of Ordinary least squares (including time or country dummies) and Poisson pseudo maximum likelihood estimators. Consequently, we propose the comparison based on the Poisson estimates due to incontestable weaknesses of the OLS estimator. Besides, we emphasize the importance of identifying the panel data structure, as we have obtained different results under the two structures (time series and cross-sectional). The predicted models reveal a substantial impact of home and partner's GDP, distance and the European Union. Total and machinery export seem to follow same tendencies, whereas the development of Czech automobile export differs and evolves on an idiosyncratic path. Therefore, it does not coincide with a path expected by trade theories based on the assumption of perfect competitive markets.
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