Esta tese investiga como as estruturas de governança se delimitam e a alocação de direitos de propriedade ocorre mediante uma oportunidade de captura de valor. A análise aplicada ao sistema agroindustrial (SAG) da carne bovina voltado às exportações para a União Europeia em relação ao SAG-típico (mercado) é utilizada como base empírica. Buscou-se na economia de custos de transação e teoria de direitos de propriedade os elementos para avançar no conceito de sistemas agroindustriais e subsistemas estritamente coordenados (SSEC). Ao teorizar a relação entre a qualidade do ambiente institucional e a tolerância organizacional, esta tese contribui ao avançar com os mecanismos de proteção de direitos de propriedade e ajuda a explicar a eminência dos SSEC. Buscou-se identificar as regularidades observadas dos agentes que atuam nessas transações - ativos específicos investidos, grau de recorrência, grau de conhecimento e capacidade de adaptação - internas e para o mercado externo e compará-las. Esta análise delimita as diferenças institucionais, os agentes coordenadores dos diferentes sistemas estritamente coordenados e as fronteiras de um SAG-típico e um SSEC voltado para as exportações e outro voltado para o mercado interno de qualidade. Por meio de três estudos de casos com as maiores indústrias de processamento brasileiras estudou-se a coordenação com o pecuarista e os sistemas que cada uma delas apresenta. Entre as regularidades dos estudos de caso e contribuições, concluiu-se que a eminência dos SSECs-qualidade para o mercado interno decorre do choque institucional que levou a criação do SSEC-exportador para a EU e o processo de aprendizagem organizacional. Isto permitiu explorar o grau de tolerância organizacional dos arranjos dessas empresas. Agregando a primeira metodologia, a pesquisa quantitativa junto aos pecuaristas foi realizada com o objetivo de validar as variáveis que discriminam os SSECs exportador e da qualidade em relação ao SAG-típico no sistema da carne bovina. / This thesis investigates how governance structure are constituted and property rights allocated when faces a new opportunity to capture value is observed. The research is applied to beef cattle agribusiness system (SAG) coordinated to attend European Union imports contrasting with the typical SAG (Brazilian Market). Based on transaction costs economics and property rights theory elements we advance on SAG and strictly coordinated subsystems (SCSS). Theorizing about the relation institutional environment quality and organizational tolerance. This thesis contributes with the protection mechanisms of property rights and helps to explain the eminence of SCSSs. Searching to identify the regularities observed between agents and compare these transactions (specific assets, recurrence, knowledge, adaptation capacity). This analysis permits to delineate institutional differences, coordinator agents from different SCSSs and their frontiers of a typical SAG x SSEC-exporter to UE or quality. Though three case studies with the major Brazilian processing companies, it was studied the coordination with producers and the systems that each one have. The regularities presented on the case studies and the contributions, it can be concluded that the eminence of SCSS-quality to the internal market was a consequence of the institutional chock that leads the creation of the SCSS to UE and the organizational learning process. This allowed to explore the concept of organizational tolerance of this arrangements. Aggregated to the first methodology, a quantitative research with producers was done to validate the variables that distinguishes the SCSSs -exporter and quality one in relation of the typical in beef cattle system.

O Protocolo de Quioto foi ratificado em Fevereiro de 2005 e com isso um mercado que vinha caminhando sem regras formais, contando com o pioneirismo de algumas empresas interessadas em aprender a lidar com esta nova commodity e preocupadas com a sua imagem corporativa, passou de fato às vias da formalidade. Assim, uma vez que o mercado de Reduções Certificadas de Emissões (RCEs) possui um arcabouço institucional estabelecido, é interessante estudar com base na Economia dos Custos de Transação (ECT), como os custos de transação induziram modos alternativos de governança, em particular os contratos entre empresas proponentes de projetos de MDL (Mecanismo de Desenvolvimento Limpo) e os canais de comercialização constituídos por organizações multilaterais. E esse estudo, conforme as recomendações de Williamson (1993; 1991; 1985), foi feito analisando as características das transações em termos de especificidade de ativos, freqüência e incerteza, dados os pressupostos comportamentais dos agentes (racionalidade limitada e oportunismo). Para tanto, a pesquisa lançou mão do método do estudo de caso para obter informações privadas sobre as transações de RCEs, e seus respectivos contratos, entre as empresas brasileiras e uma organização multilateral, o Banco Mundial. Um resultado é que, diferente das relações via mercado, as empresas brasileiras se beneficiaram - em termos de redução dos custos de transação - da transação de RCEs (via contrato) com o Banco Mundial, já que este exerce todas as funções de um típico canal de distribuição, exceto a de aquisição dos direitos de propriedade sobre os créditos. / The Kyoto Protocol was approved in February 2005 and the carbon market that was without rules, played by some pioneer companies interested in learning by doing with this new commodity and worried about their corporate image, started working in the ways of the formality. As the market of Certified Emissions Reduction (CER) has already an established Institutional Environment, it’s interesting to study, based on the Transaction Costs Economics (TCE) theory, how the transaction costs induced alternative ways of governance, in particular the contracts between Brazilian companies – with CDM (Clean Development Mechanism) projects - and the commercialization channels in multi-lateral organizations. This study, as the recommendations of Williamson (1993; 1991; 1985), was made analyzing the characteristics of the transactions in terms of asset specificity, frequency and uncertainty, considering the human behavior assumptions (limited rationality and opportunism). For this, the research used the case studies method to obtain private information about the transactions of CER, and their contracts, between Brazilian companies and a multi-lateral organization, the World Bank. A result is that, differently of the spot market relationship, the Brazilian CDM projects benefited - in terms of reduction of transaction costs – with the CERs transactions (contracts) involving the World Bank, since this bank realizes every distribution channel functions, except the acquisition of CERs property rights.

Submitted by Naio Ino (naio.ino@gmail.com) on 2013-02-07T22:41:54Z No. of bitstreams: 1 Dissertao_Naio_Final.pdf: 809445 bytes, checksum: e28769fb7eb5f239534349c5e85a2cc9 (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2013-02-08T10:19:58Z (GMT) No. of bitstreams: 1 Dissertao_Naio_Final.pdf: 809445 bytes, checksum: e28769fb7eb5f239534349c5e85a2cc9 (MD5) / Made available in DSpace on 2013-02-08T12:09:39Z (GMT). No. of bitstreams: 1 Dissertao_Naio_Final.pdf: 809445 bytes, checksum: e28769fb7eb5f239534349c5e85a2cc9 (MD5) Previous issue date: 2013-01-18 / Dentre as premissas do modelo de Black-Scholes, amplamente utilizado para o apreçamento de opções, assume-se que é possível realizar a replicação do payoff da opção através do rebalanceamento contínuo de uma carteira contendo o ativo objeto e o ativo livre de risco, ao longo da vida da opção. Não somente o rebalanceamento em tempo contínuo não é possível, como mesmo que o fosse, em um mercado com custos de transação, rebalanceamentos da estratégia replicante com intervalos de tempo muito baixos teriam o payoff da estratégia replicante comprometido pelos altos custos totais de transação envolvidos. Este trabalho procura comparar metodologias de delta-hedge, tomando como base uma call européia vendida em um mercado com custos de transação. Para comparar as diferentes estratégias, este estudo será dividido em duas partes: na primeira, serão escolhidas três ações do mercado brasileiro, e usando simulações de Monte Carlo para cada ação, avaliamos diferentes modelos de delta-hedge a partir do erro de replicação do portfolio global e dentro de um contexto de média × variância, considerando-se custos de transação. Em um segundo momento, para o mesmo grupo de ações, testamos os resultados práticos dos modelos, usando dados de mercado. / mong the assumptions of the Black-Scholes model, widely used for option pricing, it is assumed that it is possible to perform the replication of the option payoff through continuous rebalancing of a portfolio containing the underlying asset and the risk-free asset, along the life of the option. Not only rebalancing in continuous time is not possible, even as it were, in a market with transaction costs, replicating the rebalance strategy with very low time intervals would have the payoff of the replicating strategy compromised by the high total transaction costs involved. This paper seeks to compare delta-hedge methodologies, based on a short European call in a market with transaction costs. To compare the different strategies, this study will be divided into two parts: in the first part, three stocks of the Brazilian market will be chosen, and using Monte Carlo simulations for each stock, we evaluate different delta-hedging models based on the replication error in a mean × variance context, considering transaction costs. In the second part, for the same group of shares, we tested the practical results of the models using market data. The results indicate that move-based models have superior performance than time-based models.

Submitted by Helder Antoniazzi (helderua@gmail.com) on 2013-09-11T00:46:59Z No. of bitstreams: 1 Dissertacao 10-set-13.pdf: 970680 bytes, checksum: 19edacf9a47e77bc9b873b8e4fac35ed (MD5) / Approved for entry into archive by Suzinei Teles Garcia Garcia (suzinei.garcia@fgv.br) on 2013-09-11T13:35:54Z (GMT) No. of bitstreams: 1 Dissertacao 10-set-13.pdf: 970680 bytes, checksum: 19edacf9a47e77bc9b873b8e4fac35ed (MD5) / Made available in DSpace on 2013-09-11T13:49:22Z (GMT). No. of bitstreams: 1 Dissertacao 10-set-13.pdf: 970680 bytes, checksum: 19edacf9a47e77bc9b873b8e4fac35ed (MD5) Previous issue date: 2013-08-21 / The present study analyzes the influence of share's market makers on liquidity, validating a proxy that is able to measure transactions costs into secondary market. Since 1984, important papers face the challenge of measuring liquidity and recently a general review was done to compare different measures, finding the most accurate ones. This article intends to revisit these measures and select a metric most suitable to Brazilian market. Once the proxy is chosen, will be then evaluated the relevance of the market maker in determining transaction costs through a modified version of econometric equation from Sanvicente (2012). Lastly, the great contribution of the article is to identify whether the companies should hire a market maker for their stocks, in order to reduce the costs of trading in its shares. / O trabalho tem por objetivo validar a influência dos formadores de mercado de ações sobre a liquidez, uma proxy capaz de medir os custos de transação no mercado secundário de ações. O desafio de medir corretamente a liquidez teve trabalhos relevantes desde 1984, e recentemente foi alvo de uma revisão geral que comparou diversas medidas e encontrou alguns ganhadores. A proposta do presente trabalho é a de revisitar estas medidas e selecionar a métrica mais adequada ao mercado Brasileiro. Escolhida a proxy mais significativa, será então avaliada a relevância do formador de mercado na determinação dos custos de transação por meio de uma versão modificada da equação econométrica de Sanvicente (2012). Por fim, este trabalho será relevante para identificar se as empresas devem contratar formadores de mercado para suas ações, com o fim de reduzirem os custos da negociação de suas ações.

Magister Economicae - MEcon / The main objective of this study was to identify ways in which transaction costs can be lowered to improve small-scale farmers’ participation in and returns from agricultural output markets, with specific reference to small-scale mango farmers in Limpopo province. This study hypothesizes that transaction costs are lower in informal spot markets and increase when small-scale farmers sell in more structured markets (formal markets). This study builds on transaction cost economics (TCE) to demonstrate how to overcome transaction cost barriers that small-scale mango farmers face in the agro-food markets. The approach to collect primary information was sequenced in two steps: first, key informant and focus group interviews were conducted and, secondly, a structured survey instrument was administered in two districts of Limpopo. A total of 235 smallscale mango farmers were interviewed. A binary logistic regression model was used to estimate the impact of transaction costs on the likelihood of households’ participation in formal (=1) and informal (=0) agro-food markets. STATA Version 10 was used to analyse the data. This study found that a larger proportion of male than female farming households reported participation in the formal markets, suggesting deep-seated gender differentiation in market participation. The average age of small farmers participating in formal markets is 52, compared to 44 for those in informal markets, implying that older farmers might have established stronger networks and acquired experience over a longer period. Farmers staying very far from the densely populated towns (more than 50 km) participate less in the formal markets than those staying closer (0 – 25 km and 26 – 49 km), which implies that the further they are from the towns, the less the likelihood of farmers selling in the formal markets. Farmers who own storage facilities and a bakkie (transportation means) participate more in formal markets compared to those who do not own these assets, which suggests that these farmers are able to store mangoes, retaining their freshness and subsequently delivering them to various agro-food markets on time. Households that participate in formal markets have high mean values of income and social grants. However, this study found that the likelihood of a household’s participation in the markets is less as income and social grants increase. This suggests that households do not invest their financial assets in order to overcome market access barriers. A large proportion of households that own larger pieces of arable land participate in the formal markets, which implies that they are able to produce marketable surplus. Households that have a high mean value (in Rand) of cattle participate more in formal markets than in informal markets. However, this study found that the likelihood of a household’s participation in the markets does not change with an increase in the value of its livestock. These findings suggest that households do not sell their cattle in order to overcome market access barriers. Reduced transaction costs for small-scale mango farmers in Limpopo should improve their participation in and returns from the agro-food markets. Policy interventions to support this need to focus on: access to storage and transportation facilities, enforcement of gender equity requirements in existing policies, and better access to information about markets. / South Africa

L’objectif de la présente thèse est d’identifier les pratiques relevant de la gestion fiscale au sein des groupes de sociétés en Tunisie afin d’évaluer l’impact de ces pratiques sur la performance fiscale de ces acteurs majeurs de l’économie Tunisienne. Pour ce faire, le premier chapitre est consacré à la définition de la notion de groupe de sociétés en Tunisie en mettant en exergue leur poids économique et en soulignant leur réalité juridique. Le deuxième chapitre est axé sur l’identification des différentes pratiques de gestion fiscale, auxquelles ont recours ces groupes à travers une analyse de la jurisprudence fiscale représentée par 17 arrêts rendus en cassation de 2005 à 2011. Un questionnaire réalisé auprès de responsables des sociétés mères cotées à la BVMT est également mobilisé au cours de ce chapitre afin de sonder les raisons de la non application du régime d’intégration fiscale pourtant sensé être un outil efficace d’optimisation fiscale. Le troisième chapitre introduit la théorie des coûts de transaction qui semble adéquate pour déceler la relation entre pratiques de gestion fiscale et performance fiscale. Cette relation est développée au prisme de trois hypothèses de recherche qui pronostiquent le type de corrélation entre le nombre de transactions intra-groupe, le volume de la dette intra-groupe et le dégrèvement financier d’un coté et le taux d’imposition effectif de l’autre (respectivement H1, H2 et H3). Ces hypothèses sont vérifiées dans un quatrième et dernier chapitre à travers une analyse statistique multi variée menée sur des données financières d’un échantillon de 36 groupes de sociétés (21 non financiers et 15 groupes de sociétés financiers), dont la société mère est cotée à la BVMT sur une période allant de 2007 et 2011. Ainsi, cette analyse statistique a permis de valider deux des trois hypothèses de recherche (H1 et H3) dans la totalité de l’échantillon et dans le secteur financier et une seule hypothèse dans le secteur non financier (H3). Il s’avère alors que les groupes de sociétés tunisiens opèrent essentiellement par deux pratiques afin de diminuer leur taux d’imposition effectif : les techniques de dégrèvement de bénéfice et les transactions internes au groupe (cette technique n’a été vérifiée que pour le secteur financier). / The purpose of this thesis is to identify practices of fiscal management within corporate groups in Tunisia to assess the impact of these practices on fiscal performance of these major players in the Tunisian economy. Thus, the first chapter is devoted to the definition of the concept of group of companies in Tunisia highlighting their economic weight and emphasizing their legal reality. The second chapter focuses on the identification of different fiscal management practices that use these groups through an analysis of fiscal jurisprudence represented by 17 judgments of the Court of Cassation from 2005 to 2011. A survey conducted among managers of parent companies listed on the TSE is also mobilized during this chapter to sound the reasons for the non-application of the tax consolidation regime however supposed to be an effective tax planning tool. The third chapter introduces the theory of transaction costs that seems adequate to detect the relationship between fiscal management practices and fiscal performance. This relationship is developed through three research hypotheses that are forecasting the type of correlation between intra-group transactions, intra-group debt and financial relief on one side, and the effective tax rate on the other (respectively H1, H2 et H3). These hypotheses are tested in a fourth and last chapter through a multivariate statistical analysis conducted on financial data from a sample of 36 groups of companies (21 non-financial groups and 15 financial companies), whose parent company is listed on the TSE over a period from 2007 to 2011. So this statistical analysis led to confirm two of the three research hypotheses (H1 and H3) in the whole sample and in the financial sector and a single hypothesis in the non-financial sector (H3). It was then found that Tunisian groups of companies operate mainly through two practices to reduce their effective tax rate: financial relief and intra-group transactions practices (this last practice has been verified only in the financial sector).

Ziel dieses Projektes war es, in Form einer Pilotstudie erste Erkenntnisse über die systematische Nutzung sozialer Netzwerke für den Kauf von Vertrauensgütern durch Privatpersonen zu gewinnen. Hierbei stehen insbesondere zwei Fragen im Vordergrund: (1) Werden soziale Netzwerke im Suchprozeß und bei der Kaufentscheidung von Vertrauensgütern genutzt, und wenn ja, welche Bedingungen beeinflussen das Ausmaß der Nutzung von sozialen Netzwerken? (2) Welche Effekte hat die Nutzung von sozialen Netzwerken im Hinblick auf Suchdauer und Kaufzufriedenheit?:Kurzbeschreibung; Feldarbeit; Datenbeschreibung; Anlage

Private Konsumenten stehen häufig vor dem Problem, Vertrauensgüter wie Gebrauchtwagen, Wohnungen oder Pauschalreisen erwerben zu wollen. Als Vertrauensgüter werden Produkte und Dienstleistungen bezeichnet, über deren relevante Eigenschaften der Käufer erst nach dem Kauf durch den Gebrauch Informationen erhält. Im Mittelpunkt dieses Projekts steht die These, dass sich das Vertrauensproblem zwischen Käufer und Verkäufer außer durch den Rückgriff auf formelle Regelungen, wie sie z.B. durch die Gesetzgebung zur Verfügung stehen, auch durch die Nutzung sozialer Netzwerke lösen läßt. Die Einbettung der wirtschaftlichen Transaktion in einen sozialen Kontext ermöglicht dem Käufer, auf Erfahrungen Dritter mit diesem Produkt und/oder diesem Verkäufer zurückzugreifen. Zudem muß der Verkäufer im Falle falscher Versprechungen damit rechnen, einen schlechten Ruf zu erhalten. Die Wirksamkeit dieser Mechanismen ist unter anderem abhängig von den Eigenschaften des sozialen Netzwerkes wie Größe, Dichte oder Heterogenität. Handlungs- und netzwerktheoretische Konzepte erlauben die Ausarbeitung entsprechender Hypothesen, die im Rahmen einer regional begrenzten Pilotstudie getestet wurden. Die ersten Analysen mit den vorliegenden Daten bestätigen vor allem die Bedeutung von persönlichen Netzwerken bei der Wohnungssuche, der Auswahl einer Versicherung sowie der Suche nach einem Zahnarzt oder einem Reisebüro für Pauschalreisen. So geben beispielsweise 73,1% der Befragten an, dass Freunde, Bekannte oder die eigene Familie hilfreich oder sogar sehr hilfreich bei der Suche nach einer Wohnung waren. 45,2% gaben an, vor ihrem letzten Versicherungsabschluß als erstes Rat innerhalb ihres sozialen Netzwerkes gesucht zu haben, während sich nur 24,7% als erstes direkt an die Versicherungsgesellschaft wandten. Das Vorhandensein von Netzwerken, die aufgrund theoretischer Erwägungen für die Suche nach einem Vertrauensgut günstige Eigenschaften aufweisen, erleichtert oder verkürzt die Suche jedoch nicht generell. Für die Frage nach den Effekten der Nutzung von persönlichen Netzwerken für die Suche und Auswahl von Vertrauensgüter sind detailliertere Auswertungen sowie eine umfangreichere Datenbasis notwendig.:Kurzbeschreibung; Feldarbeit; Datenbeschreibung; Anlage

Die Studie baut in Ihrer Zielsetzung auf den Erkenntnissen aus der im Jahre 1999 am Institut für Soziologie durchgeführten Studie mit dem Titel "Die soziale Einbettung von Konsumentenentscheidungen" auf. In dieser Studie wurden in Form einer Pilotstudie erste Erkenntnisse über die systematische Nutzung sozialer Netzwerke für den Kauf von Vertrauensgütern durch Privatpersonen gewonnen. In Anlehnung an das vorhergehende Forschungsprojekt standen die folgenden Fragen im Vordergrund: • Werden soziale Netzwerke im Suchprozeß und bei der Kaufentscheidung von Vertrauensgütern genutzt, und wenn ja, welche Bedingungen beeinflussen das Ausmaß der Nutzung von sozialen Netzwerken? • Welche Effekte hat die Nutzung von sozialen Netzwerken im Hinblick auf Suchdauer und Kaufzufriedenheit? In Abwandlung zur vorhergehenden Studie wurden die Bereiche "Wahl einer Versicherung" und "Wahl eines Zahnarztes" durch die Bereiche "Wahl einer Krankenversicherung" und "Wahl eines Hausarztes" ersetzt bzw. spezifiziert. Aufbauend auf den Erfahrungen aus dem vorhergehenden Projekt sollten hierbei noch zusätzliche Parameter der Netzwerkbeschaffenheit mit erhoben werden, um einen tieferen Einblick in den Zusammenhang zwischen Netzwerkstruktur und -nutzung bei Konsumentscheidungen zu gewinnen.:Studienbeschreibung; Datenbeschreibung (Codebook); Anlagen

In Germany, many universities have student tickets that are bargained for between student representatives and public transport companies, approved by referendum, and mandatory for all students. They allow the use of public transport at no additional cost. I analyze such a scenario in a theoretical model as an example of a flat-rate ticket for public transport which is implemented by majority decision. The mandatory character of the ticket reduces transaction costs like marketing and ticket inspection, reducing the ticket price and thus the students’ commuting expenses. However, there is a countervailing effect. Students face and rationally expect zero marginal monetary commuting costs, so that new students choose a place of residence which is relatively far from the university. This in turn raises the equilibrium ticket price. It may even be the case that students would be better off if such a ticket had never existed. Nonetheless, they always vote for it in referenda, because accepting the high price is optimal given their place of residence. After laying out the model, I analyze an optimal policy, which consists, for example, of subsidizing student dorms at an efficient distance to the city center.