The political economy of the exchange rate explains different approaches within the integration process of the European monetary union. The changing character of exchange rate pass-through into the foreign trade prices changes not only the international economy paradigm, but also the attitude to the exchange rate political economy. The study solves the incentives to the different exchange rate arrangement choice during the transformation and integration period in the Central and East European countries. It follows with the analysis of the industry structure in these economies. It discusses the existence of its direct and indirect channel of influencing the exchange rate politics. Article solves the hypothesis of interest group formation in regard to the exchange rate policy (the euro adoption) and the intergovernmental bargaining as well as the bargaining within the economy. The industry analysis results confirm the set hypothesis, in which the heterogenity of industry structure explains the heterogeneous approach to the exchange rate politics during the transformation process in monitored economies. The redistributive change of Hungarian exchange rate policy is discussed in connection with the change of subsidies flow within the political cycle. We discuss the impact of current account adjustment on the tradable and nontradable sector in member countries of currency union -- Euro zone. The current account adjustment associated with the adjustment of the net export's deficit caused by the drop in the domestic absorption evokes the increase in the relative price of the nontradable sector. The paper discusses this hypothesis within framework of the Portuguese current account adjustment, which is the result of European financial integration in catching-up countries. The common monetary policy and common currency cannot offset the negative impact of nontradable price increase within the internal expenditure switching effect and also can not support exporters within the external expenditure effect.. The Portuguese current account adjustment was not followed by the currency depreciation and the tradable price increase. The cost of the currency asymmetric response were born by the tradable mark-up decrease, the falling decrease in nontradable wages and employment and finally by the nontradable mark-up and employment decrease.

This thesis consists of four essays within the field of environmental economics. Computable General Equilibrium models have been used to assess the economic consequences of greenhouse gas policies. The focus is mainly on the Swedish economy, but the EU economies and the global economies are also analyzed in one essay each. The costs and effects of a unilateral Swedish decision to reduce carbon dioxide emissions are analyzed in essay I. The results of a unilateral reduction are compared to the results of an implementation of an EU multilateral agreement. The results indicate that if Sweden unilaterally decides to increase its CO2 tax, total EU CO2 emissions will increase, i.e. there will be a “carbon leakage effect”. Furthermore, an EU multilateral implementation of a CO2 tax will induce lower welfare (excluding environmental benefits) in Sweden, as compared to the situation where the same tax is unilaterally introduced.In the second essay we analyze the Swedish environmental goals conforming to the Kyoto Protocol, when simultaneously meeting national goals to alleviate acidification and eutrofication effects by reducing SO2 and NOx pollutants. We have found that when secondary benefits of measures aiming at reducing CO2 are taken into account, it may still be in the government’s interest to nationally decrease CO2, instead of engaging in seemingly low-cost trading. The principles for allocation emission permits are many, and in the third essay I focus on principles based on economic welfare theory. My main conclusion from these simulation exercises is that the distribution rule based on the different assumptions on social welfare function and some other more ad hoc distribution rules offers quite large changes in welfare, distributions of emission rights and contrary to earlier literature, I find that the initial distribution not only gives second-order effects but affects equilibrium prices and therefore, income.In the fourth essay I focus on how households’ demand for transport services can be improved in CGE-models. A differentiation between trip purposes and trip length, a complementary relationship between work journeys and labor supply, and a subdivision of households by density of population and income, influences the numerical results in a direction increasing the negative welfare effect of a carbon target, as compared to the non-extended model. / Diss. Stockholm : Handelshögskolan, 2004

La Directive européenne et les politiques de prévention du changement climatique conduisentà un développement important des Énergies Renouvelables pour la production d'électricité. Cecontexte politique est en train d'induire l'insertion massive de production intermittente d'origineéolien dans les réseaux électriques. Pour répondre à la question des limites de l'intégration de l'éoliendans les réseaux électriques, nous nous appuyons sur l'étude des aspects technique et économiques.Dans ce cadre, cette thèse s'intéresse d'une part à l'étude de l'efficacité des dispositifs d'incitationéconomique du point de vue de leur efficacité à stimuler la croissance de l'énergie éolienne et d'autrepart, aux problématiques techniques de court et long terme liées à l'intermittence de l'éolien. Dans lecourt-terme, les problèmes du réseau électrique ainsi que les ajustements dans le marché del'électricité sont abordés. Dans le long terme, l'impact de l'éolien sur la sûreté de fonctionnement estévalué au moyen d'un algorithme de calcul du crédit de capacité de l'éolien. / The development of Renewable Energy for electricity production has increased due to theEuropean policies and directives to prevent climate change. This political context is promoting amassive insertion of intermittent wind electricity production into electrical networks. There are stilldoubts about the limitations of integrating wind power into the electrical networks. For this reason,we focus on the study technical and economic aspects to approach these limitations. The firstpurpose of this research is to determine the effectiveness of the economical incentives policies inorder to stimulate growth in the wind power production. The second one is to evaluate the technicalproblems in the short and long term caused by the intermittency of wind power. In the short-term,the problems of power systems as well as the adjustments in the electricity market are discussed. Inthe long term, the impact of wind power reliability (in the network) is evaluated by using an algorithmto calculate the capacity credit of wind power.