O presente trabalho tem por objetivo estudar o financiamento da política no Brasil por pessoas jurídicas, a fim de evocar os riscos que gera para o processo de escolha dos governantes e a fase governamental. A análise dessas questões dá-se por meio de quatro chaves. A primeira trata da capitalização dos partidos políticos e candidatos, a qual demanda fixação de limites por meio de ferramentas de regulação que buscam equilíbrio nas campanhas eleitorais e no financiamento das atividades dos partidos. A segunda versa sobre os dados de eleições nacionais e de pesquisas empíricas sobre o resultado da participação de pessoas jurídicas, correlacionando-o com os efeitos colaterais do financiamento, quais sejam, a corrupção e a influência do poder econômico. O exame de alguns escândalos tem relevância na atualidade, sobretudo diante da possibilidade de subsidiarem reformas que se apresentam necessárias. A terceira aborda soluções encontradas em outros países para equacionar os efeitos da participação das pessoas jurídicas, com destaque para o debate da questão atinente à liberdade de expressão. A pesquisa revela que a Justiça Eleitoral e a jurisdição constitucional brasileira tiveram papel decisivo na conformação do financiamento da política. A quarta consiste na análise crítica das regras do ordenamento brasileiro, inclusive as decorrentes da reforma política, que visam equacionar os problemas diagnosticados no estudo, e das decisões da jurisprudência que lidaram com o princípio da igualdade. Ao final, alinham-se vantagens e desvantagens do financiamento da política por pessoas jurídicas. / The present work aims to analyze the political financing by legal entities in Brazil in order to evoke the risks for the process of choosing the rulers and the period of governorship. The analysis of the issues considers four keys. The first is about the capitalization of the political parties and the candidates, which demands the fixing of limits through regulation tools to seek the balance in the electoral campaigns and in the financing of the parties activities. The second one concerns the data of the national elections and the empirical researches on the result of the participation of legal entities, correlating it with the side effects of financing, in other words corruption and the influence of the economic power. The exam of some scandals is relevant in the present time mainly considering the possibility of subsidizing reforms that are presented as necessary. The third point considers the other countries solutions to balance the effects of the legal entities contributions especially the discussion of the issue pertaining to freedom of expression. The research reveals that the Electoral Courts and the Brazilian constitutional jurisdiction had a decisive role shaping the political financing. The fourth key is the critical analyses of the Brazilian legal system, including the rules resulting from the political reform, which intended to solve the problems identified in the study, and the case law which dealt with principle of equality. In the end, there is an evaluation of the advantages and disadvantages of political financing by legal entities.

Quel est le pouvoir des normes internationales de droits humains ? Ces normes ont-elles un pouvoir politique? En s’appuyant sur le cas mexicain (entre 1988 et 2006), la thèse tente de répondre à trois questionnements. Le premier est lié à la trajectoire des normes: les défenseurs mexicains des droits humains cherchent-ils l’appui d’acteurs internationaux pour promouvoir les droits humains vis-à-vis leur gouvernement, tel que le suggère le modèle du boomerang ? Deuxièmement, il s’agit de comprendre l’impact du processus de diffusion des normes sur le respect des droits humains : les acteurs internationaux et nationaux qui défendent les droits humains parviennent-ils à influencer les décisions politiques gouvernementales, en matière de protection des droits humains ? Et finalement: ces groupes contribuent-ils à changer le cours du processus de démocratisation d’un État ? Les résultats de la recherche permettent de tirer quelques conclusions. La thèse confirme dans un premier temps la théorie du boomerang de Keck et Sikkink (1998), puisque les pressions domestiques en matière de droits humains deviennent efficaces au moment où les acteurs domestiques gagnent l’appui des acteurs internationaux. En ce qui concerne l’impact de la diffusion des normes internationales des droits humains sur leur protection gouvernementale, il semble que le gouvernement mexicain entre 1988 et 2006 réagisse aux pressions des acteurs qui diffusent les normes de droits humains par la mise en place d’institutions et de lois et non par une protection effective de ces droits. Un deuxième type d’impact, lié à la diffusion des normes en droits humains, est observé sur le processus de démocratisation. La thèse montre que les acteurs qui diffusent les normes en droits humains jouent un rôle dans la mise en place de réformes électorales, tout en contribuant à une redéfinition plus démocratique des rapports de pouvoir entre la société civile et l’État. / What is the power of international human rights norms ? Do those norms have the capacity to change the political course of a State ? More precisely, can they contribute to a better human rights protection and the democratization of a State ? This thesis tackles these questions and tries to figure out how the international human rights norms are participating to the political evolution of a country. Examining the case of Mexico, this thesis seeks to provide answers to three main questions. The first one is related to the path followed by norms : are the domestic human rights groups bypassing their State to search out international allies to bring pressure on the government, as suggested by the boomerang model, or are they able to display effective pressure for human rights changes? This thesis also tries to understand the impact of human rights groups on human rights domestic changes : are the international and national human rights groups able to bring out domestic human rights changes ? Finally, the impact of human rights groups on democratization is examined : do international and national human rights groups play a role within the democratization of the mexican State ? The analysis of data helps to draw the appropriate conclusions. First, the thesis argues that domestic human rights groups are using the boomerang effect, seeking international allies in Mexico to put effective pressure on their gouvernment. Indeed, the human rights domestic pressure became effective only when the international community started to get involved in the protection of human rights in Mexico. Secondly, it shows that international and national human rights groups have been efficient in encouraging the Mexican government to adopt human rights policies between 1988 and 2006. As the human rights sector expanded in Mexico, the government has put into place many reforms and institutions to promote human rights.

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