|
|
Sino-american economic relations at the begining of the 21st century and their impact on the world economy.
Hanák, Jiří ; Neumann, Pavel (advisor) ; Němcová, Ingeborg (referee)
The thesis deals with sino-american economic cooperation with the emphasis on the period after 2000 and the current situation. The objective was to evaluate these relations and to analyse selected problems associated with the international trade. The thesis is dividend into six chapters. First two deal with general description of both economies and short summary of up to date relations. The third chapter concentrates on the structure of mutual trade and investment, with the emphasis on the concentration of foreign exchange in present China and its role in the U.S. federal debt. The fourth chapter targets three selected problems -- mutual cooperation within the WTO and the existing trade barriers, current Chinese exchange rate policy and the problem of unemployment and open economy. The fifth chapter targets the international trade theory, especially sustainability of long term deficit in the current account, problem of foreign debt and international investment position. The last chapter is handling with the impact of USA and China on the imbalance in the world economy and changes associated with the rise of China as the second-largest world economy.
|
|
|
Electricity market model of the Czech Republic
Kubát, Jan ; Pelikán, Jan (advisor) ; Kodera, Jan (referee) ; Marvan, Miroslav (referee)
A competitive electricity market has been established in many European countries including the Czech Republic. The electricity market includes a limited number of significant producers and traders, which can be described by oligopoly model. Since the electricity transmission and distribution are regulated, I consider two types of players performing in the electricity market: producers of electricity and traders, who buy electricity from producers and sell it to final customers. I derive oligopoly model with producers and traders "a la Cournot" and calculate a formula of equilibrium strategies. I use these theoretical findings to build a dynamic oligopoly model Ele. Ele is formulated as a mixed complementary problem and calibrated on data for the Czech Republic and neighbor states for several scenarios. The model was specified and calculated in GAMS software by the PATH solver. The results represent a Nash equilibrium. That means for individual producers: electricity generation, investment in new power plants construction and emission permits purchases. For traders the results are: equilibrium purchases, sales and cross-border transfers of electricity in each particular time period. Ele derives also equilibrium regional wholesale and retail electricity prices, emission permit prices and prices of cross-border auctions. Ele results point to an economic profitability of new nuclear power plants constructions. Further, I formulate a game in short-term electricity market, where I advise to Czech market participants, subjects of settlement, how much and in which circumstances to buy or sell electricity. Equilibrium results obtained through simulations based on the principle of a fictive game show that the current payment system of imbalance in the Czech Republic does not increase the risk of instability of electricity networks.
|
|
|
Meta-analysis of methodological artifacts of the phylogenetic imbalance.
SMRČKOVÁ, Jana
The influence of possible methodological artifacts (e.g. type of data or tree construction methods) on the tree topology was evaluated. A total of 413 phylogenetic trees was downloaded from the tree repository TreeBASE. Three indices of topology imbalance were employed, namely, Fusco & Cronk index, weighted average, and Colless index. The study reveals that methodological artifacts have probably a weak influence on the tree shape. Therefore, patterns in tree balance could reflect macroevolutionary processess, not a methodological bias.
|
guest ::
