[pt] Embora estranho ao Código Civil, o conceito de custo de oportunidade é, por vezes, visto em demandas, judiciais ou arbitrais, em conexão com os pedidos indenizatórios formulados pelas partes. Embora alguns estudos de Direito Civil mencionem o conceito, direta ou indiretamente, faz-se necessário analisá-lo cientificamente, sob o ponto de vista de sua compatibilidade com o ordenamento jurídico brasileiro, para que se possa investigar se e como o conceito poderá afetar o valor da indenização devida ao credor. Nesse sentido, após conceituar o custo de oportunidade, procede-se à análise da função da responsabilidade civil, bem como ao método de cálculo da indenização. Uma vez estabelecido esse instrumental, pretende se contribuir para o debate a respeito de quais seriam os requisitos necessários a que dois distintos pedidos de indenização relacionados ao custo de oportunidade, observados com frequência em litígios, sejam atendidos: os pedidos relacionados ao custo de oportunidade dos valores que se investiu e os pedidos relacionados ao custo de oportunidade referente aos valores que se deixou de receber. / [en] Although foreign to the Civil Code, the concept of opportunity cost is often seen in judicial or arbitral proceedings, in connection with indemnity claims brought up by the parties. While some studies of Civil Law mention the concept, directly or indirectly, it is necessary to analyze it scientifically from the perspective of its compatibility with the Brazilian legal system, in order to investigate whether and how the concept may affect the value of damages due to the creditor. In this sense, after conceptualizing the opportunity cost, an analysis is made of the function of civil liability, as well as the method of calculating damages. Once this framework is established, the aim is to contribute to the debate regarding the necessary requirements for two distinct indemnity claims related to opportunity cost, frequently observed in disputes, to be met: claims related to the opportunity cost of invested amounts and claims related to the opportunity cost of amounts due bot unpaid in whole or on time to the creditor.

Formation of a contract is nowadays more sophisticated than it formerly used to be due to major progress in communication technologies and technical development, and therefore, looking on negotiation process only through the notions of offer and acceptance alone appears to be somewhat insufficient. It is not unusual and infrequent that long term and complicated dealings take place prior to the conclusion of a contract, especially in more or less complex business matters. During various negotiation stages, many parties may incur different kinds of significant expenses in order to prepare well for the next phase of the negotiations and, eventually, for the targeted contractual performance. For the conclusion of a contract it may also be necessary to inform the other party about the terms and conditions which are essential for the first party's final decision about the contract, while some of this information might be considered as strictly confidential. Although the fundamental principle of contractual freedom allows the parties to act freely in negotiations and the contractual process is generally regarded as a non-binding relationship, there are some restrictions set up with the aim to protect good faith of the parties and support their fair dealings. According to the abovementioned, a situation...

The times when closing of the contract was as simple as making an offer and receiving its acceptance are long over now. A variuosly long period preceeds an establishment of a contractual relationship. During such period, when a contract is being formed, the parties exchange their requests or essential information and negotiate the content of the contract. The longer this pre-contractual negotiation lasts, the more time, money or other means parties invest in good faith that they shall be compensated once the contract is concluded. In case the closing of the contract is not going to occur, because of a party's unfair dealings, the party in harm shall be entitled to engage liability of the other contractor. In these circumstances, the party in harm shall base its claim on a pre-contractual liability, also referred to as culpa in contrahendo. Apart from determining the pre-contractual obligations and liability for their breach in general fashion, the subject matter of this thesis is mainly an effective comparison of Czech and French relevant legal regulation. Since the legislation does not currently regulate the issue of pre-contractual liability, this thesis is focused primarily on the case law issued by courts from both states. In particular, the thesis analyzes the case law of the Czech Supreme...

La responsabilité précontractuelle dérive de la transposition du devoir d'agir de bonne foi qui pèse sur les contractants au stade de l'exécution du contrat à celle de sa formation. En Colombie, cette transposition s'est faite en 1971 par voie législative dans le Code du commerce alors qu‟en France elle s'est produite grâce à la jurisprudence. Toutefois, le caractère répressif de la responsabilité au stade de la formation du contrat est encore conçu, au mieux, comme une simple réminiscence de la responsabilité délictuelle et, au pire, comme une sanction marginale à la responsabilité contractuelle. L'intérêt qui existe dans cette recherche en droit comparé consiste, en effet, à trouver le critère qui donne à la responsabilité précontractuelle son autonomie, sa spécificité. Ainsi, une observation attentive nous a permis de découvrir que ceux qui persistent à nier l‟existence de la responsabilité précontractuelle en la rattachant à la délictuelle se sont penchés sur un critère chronologique emprunté à l'ancienne notion du contrat : le moment de sa conclusion. En effet, d'après eux, l'absence de contrat justifie que l'on applique le principe général de responsabilité délictuelle. Pourtant, la comparaison des régimes colombien et français montre la fragilité de ce raisonnement face aux nombreuses victimes des vices du consentement qui, de plus en plus, préfèrent l'indemnisation du dommage à la nullité du contrat. Une fragilité qui se révèle d‟autant plus évidente face aux dommages-intérêts qui sont accordés par les juges dans des contrats bel et bien formés, mais qui ne correspondent pas aux fautes dans l'exécution des obligations qui en découlent, mais aux fautes au stade de sa formation. En essence, l'identification des points de convergence ou de divergence de ces droits au stade de la formation du contrat, et leur comparaison par rapport aux mutations du régime de la bonne foi semblent, en effet, contribuer au renforcement de la responsabilité précontractuelle en tant qu'institution autonome. / Pre-contractual liability is derived from the transfer of the duty of the contracting parties to act in good faith from the contract performance phase to the contract formation phase. This transfer was carried out in Colombia by legislative action through the 1971 Commerce Code and in France, by jurisprudence. Nevertheless, the repressive nature of liability during contract formation is still interpreted as simply a reminiscence of delictual liability, at best, and as a marginal sanction for contractual liability, at worst. The goal of this study in comparative law is to find a criterion that confers autonomy and specificity to pre-contractual liability. Therefore, careful analysis by the author led to the discovery that those who insist on denying the existence of pre-contractual liability by linking it to delictual liability have based their argument on a chronological perspective taken from the old notion of contract, i.e., the time of execution. Furthermore, in their view, the absence of a contract justifies the application of the non-contractual liability regime. However, a comparison of the Colombian and French systems on this matter shows the fragility of the argument when faced with the large number of victims of defects of consent who, day after day, prefer indemnification of damages instead of a ruling of nullity of contract. This fragility is much more evident when judges order the indemnification of damages in well-formed contracts, due not to faults related to failure to meet any of the obligations that are derived from them, but to faults originating in the contract formation phase. In essence, finding common ground and discrepancies between the Colombian and French law systems regarding the contract formation phase and comparing them with the mutations of the good faith regime seem to actually contribute to consolidating pre-contractual liability as an autonomous institution.

Insurance contracts will be reported at fair values on insurers’ balance sheets from 2010. In this thesis, we will review the conceptual and theoretical backbone of the insurance fair valuation project while providing a summary of the key features of the fair valuation project. Then, we will conduct a case study aimed at finding, under the fair valuation regime, the best asset allocation strategy for a particular business unit that carries a hypothetical annuity portfolio using a single modelling framework for valuation, risk calculation and business appraisal.