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Brokerage discovery in social networks

Cavique, Luís
Fonte: EPIA Publicador: EPIA
Tipo: Conferência ou Objeto de Conferência
Publicado em //2013 Português
Relevância na Pesquisa
27.03%
Conferência realizada em Angra do Heroísmo, Açores, de 9-12 de Setembro de 2013; In social networks two types of measures can be identified, the structural measures and community structure based on diameter and centrality. The community structure usually deals with network partition into communities. The key idea of this work is to explore the concept of strong and weak ties by finding brokers within communities. The strict partition problem is relaxed into a bi-objective set covering problem with k-cliques which allows over-covered and uncovered nodes. The information extracted from social networking goes beyond cohesive groups, allowing the finding of brokers that interact between groups.

O não dito sobre os requisitos de seleção de pessoal e as empresas de telefonia móvel: flexibilização, competências e intermediação de empregos na expansão capitalista

Straliotto, Marcia Carvalho e Silva
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
27.78%
O objetivo geral desta dissertação é analisar o não dito sobre os requisitos de seleção de pessoal das empresas de telefonia móvel, através de vagas encaminhadas para empresas intermediadoras de emprego. O estudo está centrado em três grandes eixos: a flexibilização, os requisitos descritos e os requisitos não descritos nas seleções realizadas por intermediadoras de emprego para as empresas de telefonia móvel. O primeiro eixo diz respeito ao contexto em que ocorrem os processos seletivos e verifica os aspectos explícitos e implícitos das relações flexíveis estabelecidas entre operadoras e empresas intermediadoras. O segundo eixo está centrado na análise dos requisitos descritos como necessários para os cargos, sendo esses critérios os anunciados para os candidatos. O terceiro eixo, por fim, analisa os requisitos não descritos, aqui nomeados como “não ditos”e não anunciados, mas praticados pelas empresas e determinantes para contratação ou exclusão de candidatos. Trata-se de uma pesquisa de abordagem qualitativo-exploratória. A coleta de dados foi realizada através de entrevistas semiestruturadas, realizadas com 14 sujeitos – gestores, selecionadores e trabalhadores – que atuam em empresas intermediadoras de emprego. O estudo constata que as vagas encaminhadas para as empresas intermediadoras são predominantemente operacionais e temporárias e que os processos seletivos realizados ocorrem mediante pressão por cumprimento de prazos e metas impostas pelas operadoras. A pesquisa revela que os requisitos de seleção de pessoal vão além dos descritos e anunciados socialmente...

Responsabilidade civil na intermediação de operações no mercado de capitais

Ruas, Celiana Diehl
Fonte: Universidade Federal do Rio Grande do Sul Publicador: Universidade Federal do Rio Grande do Sul
Tipo: Trabalho de Conclusão de Curso Formato: application/pdf
Português
Relevância na Pesquisa
27.03%
O mercado de capitais é uma das principais alavancas de desenvolvimento da economia de um país e, especialmente no Brasil, vive um momento ímpar de crescimento. Considerando os prognósticos de expansão e cada vez maior popularização de tal tipo de investimento, surge a questão da responsabilidade civil na intermediação de operações no mercado de capitais. O presente estudo visa analisar tal tema, perquirindo-se, na primeira parte, a legislação específica de maior pertinência, bem como a possibilidade de incidência do Código de Defesa do Consumidor na relação entre o investidor e o prestador de serviços de intermediação de operações. Após, será analisada especificamente a espécie de responsabilidade civil aplicável à matéria, bem como casos jurisprudenciais representativos do assunto examinado.; The capital market is one of the main levers of development of the economy of a country and, especially in Brazil, it is living a unique moment of growth. Considering the expansion forecasts and the growing popularity of this type of investment, it raises a question of civil liability in between of the capital market transactions. This present study aims to analyze this issue, by evaluating, in the first part, the specific legislation of greater relevance...

Stabilizing brokerage

Stovel, Katherine; Golub, Benjamin; Milgrom, Eva M. Meyersson
Fonte: National Academy of Sciences Publicador: National Academy of Sciences
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
27.78%
A variety of social and economic arrangements exist to facilitate the exchange of goods, services, and information over gaps in social structure. Each of these arrangements bears some relationship to the idea of brokerage, but this brokerage is rarely like the pure and formal economic intermediation seen in some modern markets. Indeed, for reasons illuminated by existing sociological and economic models, brokerage is a fragile relationship. In this paper, we review the causes of instability in brokerage and identify three social mechanisms that can stabilize fragile brokerage relationships: social isolation, broker capture, and organizational grafting. Each of these mechanisms rests on the emergence or existence of supporting institutions. We suggest that organizational grafting may be the most stable and effective resolution to the tensions inherent in brokerage, but it is also the most institutionally demanding.

Bringing Worlds Together: Cultural Brokerage in Multicultural Teams

Jang, Sujin
Fonte: Harvard University Publicador: Harvard University
Tipo: Thesis or Dissertation
Português
Relevância na Pesquisa
37.78%
This dissertation introduces and illuminates the phenomenon of cultural brokerage-- the act of managing cross-cultural interactions in multicultural teams. Across four studies, I develop and test a theoretical model of cultural brokerage, using both qualitative and quantitative methods. I find that members of multicultural teams who have relatively more cross-cultural experience actively engage in cultural brokerage, even without being appointed to do so. Specifically, cultural insiders (those who have deep knowledge of the culture of the other members on the team) and cultural outsiders (those who have deep knowledge of multiple cultures other than the ones represented in the rest of the team) both engage in cultural brokerage, albeit in different ways. Insiders are more likely than outsiders to broker by directly resolving cultural issues; outsiders are more likely to broker by facilitating interactions. Both types of brokerage enhance team effectiveness. A key insight of this dissertation is that while cultural outsiders are generally perceived as being far less valuable than cultural insiders, they are actually equally effective in improving team performance, and even outperform insiders when it comes to enhancing certain aspects of team viability. This work contributes to the literatures on global teams...

Optimization tools for the freight brokerage industry

Silver, Jeffrey L. (Jeffrey Lee), 1962-
Fonte: Massachusetts Institute of Technology Publicador: Massachusetts Institute of Technology
Tipo: Tese de Doutorado Formato: 52 leaves; 2970379 bytes; 2974534 bytes; application/pdf; application/pdf
Português
Relevância na Pesquisa
27.5%
The freight brokerage industry in North America was born of the deregulation of the trucking industry in 1982. In the two decades since, the industry has grown from nothing to $50 Billion in revenue. In the beginning, freight brokers used T-card systems to record, track, and bill orders. Technology advances over those two decades have driven many of the operational changes throughout the freight transportation industry as a whole, with shipment data visibility, asset utilization, and supply chain planning leading the way. The use of optimization tools in transportation and supply chain management has proliferated. Network analysis, inventory planning and deployment, fleet routing, and warehouse planning are important examples of areas in which these tools have had a major impact. However, the freight brokerage sub-industry itself has largely ignored the use of these tools. This research proposes pragmatic uses for optimization techniques in the freight brokerage industry. Three tools are proposed, with justifications for need, mathematical formulations, and exemplary situations and savings described. The three tools are: 1) optimal truckload freight tenders to multiple carriers, 2) optimal LTL consolidation, and 3) optimal matching of loads and trucks.; by Jeffrey L. Silver.; Thesis (M. Eng. in Logistics)--Massachusetts Institute of Technology...

A corretagem de imóveis no Rio Grande do Norte: das práticas históricas à emergência como segmento integrante da fração imobiliária do capital

Silva, Rainolenes de Melo
Fonte: Universidade Federal do Rio Grande do Norte; BR; UFRN; Programa de Pós-Graduação em Ciências Sociais; Desenvolvimento Regional; Cultura e Representações Publicador: Universidade Federal do Rio Grande do Norte; BR; UFRN; Programa de Pós-Graduação em Ciências Sociais; Desenvolvimento Regional; Cultura e Representações
Tipo: Dissertação Formato: application/pdf
Português
Relevância na Pesquisa
27.71%
This research proposed to question the development of what was defined as historical practices (commercial, social and political institutions), of the economic activity of the real estate brokerage in the Rio Grande do Norte from the progressive institutionalization of economic agents - individuals (realtors) and legal (real estate) - based on two main approaches: a) the development of economic activity as an integral segment of a fraction of capital (POULANTZAs, 1985; LESSA, 1981). This work set out from a socio-historical approach of the historical practices development the of real estate brokerage in Brazil started in the Southeast, especially in the cities of Rio de Janeiro and São Paulo as a result of the "expansion of capitalist relations by the housing sector" (RIBEIRO , 1996). especially the real estate capital ; b) the historical development of relations between labor and capital within the activity, in other words, the development of the relationship between realtors and Real Estate in relation to "group of interests" and their "collective actions" (OFFE, 1984). These historical practices are defined in this research as: 1) mercantile practices, times when there was no distinction between the activity of real estate brokerage and other forms of mercantile capital; 2) social practices...

Conflits d’intérêts et courtage immobilier au Québec : un constat mitigé sur l’état du droit, 50 ans après l’entrée en vigueur de la première Loi sur le courtage immobilier

Lafrenière, Isabelle
Fonte: Université de Montréal Publicador: Université de Montréal
Tipo: Thèse ou Mémoire numérique / Electronic Thesis or Dissertation
Português
Relevância na Pesquisa
27.78%
La période de prospérité immobilière qu’a vécue le Québec a attiré de nombreuses personnes vers la pratique du courtage immobilier. Certains ont malheureusement choisi d’exercer cette « profession » pour les mauvaises raisons et sans se soucier des règles et valeurs régissant l’industrie du courtage immobilier au Québec, dont la protection est confiée à l’Organisme d’autoréglementation du courtage immobilier du Québec (ci-après : « Organisme » ou « OACIQ ». Ainsi, à l’ère où la question des conflits d’intérêts, et plus particulièrement ceux existants chez nos élus, envahie littéralement les médias, il nous a semblé pertinent d’étudier le concept de conflit d’intérêts à travers la Loi sur le courtage immobilier en vue de faire un constat sur l’état du droit. Dans la première partie de notre exposé, nous traiterons des fondements et origines de l’expression « conflit d’intérêts » ainsi que son évolution à travers le temps, jusqu’à présent. Cette première partie, également consacrée au lexique, nous permettra de comprendre l’étymologie des termes « conflit », « intérêt » et de l’expression « conflit d’intérêts ». Finalement, nous analyserons certaines lois et décisions traitant du sujet. Dans la seconde partie de notre mémoire...

El Salvador - Financial sector assessment

World Bank
Fonte: World Bank Publicador: World Bank
Tipo: Economic & Sector Work :: Financial Sector Assessment Program (FSAP)
Português
Relevância na Pesquisa
27.32%
Despite the global and domestic shocks of 2008-2009, the banking sector remains sound. Salvadoran banks were not directly exposed to the global financial crisis. However, the parent banks of several major Salvadoran banks were and directed subsidiaries to conserve risk capital. The higher risk aversion and recession in the United States, combined with uncertainty about the 2009 elections, led to a sharp economic downturn, and a decline in both credit demand and supply. Banks' nonperforming loans increased and profitability declined. Even so, capitalization remained high. Stress tests indicate that most banks would be able to withstand large deposit withdraws and severe deterioration in credit quality arising from large macroeconomic or sectoral shocks. However, credit concentration risks appear significant. Regulated non-bank financial institutions do not pose significant risks, but pension funds' poor profitability is a concern for the long-term. Regulated cooperative banks and insurance companies report healthy financial indicators. Brokerage houses have reduced drastically their fund management activities...

Liquidity Clienteles : Transaction Costs and Investment Decisions of Individual Investors

Anginer, Deniz
Fonte: Banco Mundial Publicador: Banco Mundial
Tipo: Publications & Research :: Policy Research Working Paper
Português
Relevância na Pesquisa
27.5%
Theoretical papers link the liquidity premium to the optimal trading decisions of investors facing transaction costs. In particular, investors' holding periods determine how transaction costs are amortized and priced in asset returns. Using a unique data set containing two million trades, this paper investigates the relationship between holding periods and transaction costs for 66,000 households from a large discount brokerage. The author finds that transaction costs are an important determinant of investors' holding periods, after controlling for household and stock characteristics. The relationship between holding periods and transaction costs is stronger among more sophisticated investors. Households with longer holding periods earn significantly higher returns after amortized transaction costs, and households that have holding periods that are positively related to transaction costs earn both higher gross and net returns. The author shows that there is correlation in the demand for liquid assets across households and...

O abolicionista cosmopolita: Joaquim Nabuco e a rede abolicionista transnacional

ALONSO, Angela
Fonte: Centro Brasileiro de Análise e Planejamento Publicador: Centro Brasileiro de Análise e Planejamento
Tipo: Artigo de Revista Científica
Português
Relevância na Pesquisa
27.03%
Este artigo argumenta que a liderança de Joaquim Nabuco no movimento pela abolição da escravidão no Brasil deveu-se à sua capacidade de operar como broker entre diferentes redes sociais, conectando, de um lado, o abolicionismo das ruas e o parlamento, e, de outro, o movimento abolicionista brasileiro e a rede abolicionista transnacional ativa no final do século XIX.; This article argues that Joaquim Nabuco's position as a leader of the Brazilian anti-slavery movement was due to his ability to build the brokerage between diverse social networks, operating as a broker between parliamentary and civil society activism, on the one hand, and between the local activism and the global abolitionist network, on the other.

Negotiation platform for personalised advertising

Sousa, Luís Ventura de; Malheiro, Benedita; Foss, Jerry
Fonte: KU Leuven Publicador: KU Leuven
Tipo: Artigo de Revista Científica
Publicado em //2012 Português
Relevância na Pesquisa
27.32%
This paper describes a multi-agent brokerage platform for near real time advertising personalisation organised in three layers: user interface, agency and marketplace. The personalisation is based on the classification of viewer profiles and advertisements (ads). The goal is to provide viewers with a personalised advertising alignment during programme intervals. The enterprise interface agents upload new ads and negotiation profiles to producer agents and new user and negotiation profiles to distributor agents. The agency layer is composed of agents that represent ad producer and media distributor enterprises as well as the market regulator. The enterprise agents offer data upload and download operations as Web Services and register the specification of these interfaces at an UDDI registry for future discovery. The market agent supports the registration and deregistration of enterprise delegate agents at the marketplace. This paper addresses the marketplace layer, an agent-based negotiation platform per se, where delegates of the relevant advertising agencies and programme distributors negotiate to create the advertising alignment that best fits a viewer profile and the advertising campaigns available. The whole brokerage platform is being developed in JADE...

A proposal for media component brokerage

Malheiro, Benedita; Foss, Jerry
Fonte: KU Leuven Publicador: KU Leuven
Tipo: Artigo de Revista Científica
Publicado em //2010 Português
Relevância na Pesquisa
37.5%
This paper describes how MPEG-4 object based video (obv) can be used to allow selected objects to be inserted into the play-out stream to a specific user based on a profile derived for that user. The application scenario described here is for personalized product placement, and considers the value of this application in the current and evolving commercial media distribution market given the huge emphasis media distributors are currently placing on targeted advertising. This level of application of video content requires a sophisticated content description and metadata system (e.g., MPEG-7). The scenario considers the requirement for global libraries to provide the objects to be inserted into the streams. The paper then considers the commercial trading of objects between the libraries, video service providers, advertising agencies and other parties involved in the service. Consequently a brokerage of video objects is proposed based on negotiation and trading using intelligent agents representing the various parties. The proposed Media Brokerage Platform is a multi-agent system structured in two layers. In the top layer, there is a collection of coarse grain agents representing the real world players – the providers and deliverers of media contents and the market regulator profiler – and...

B2B platform for media content personalisation

Malheiro, Benedita; Foss, Jeremy; Burguillo, Juan Carlos
Fonte: Politecnico di Milano Publicador: Politecnico di Milano
Tipo: Conferência ou Objeto de Conferência
Publicado em //2013 Português
Relevância na Pesquisa
27.5%
This paper proposes a novel business model to support media content personalisation: an agent-based business-to-business (B2B) brokerage platform for media content producer and distributor businesses. Distributors aim to provide viewers with a personalised content experience and producers wish to en-sure that their media objects are watched by as many targeted viewers as possible. In this scenario viewers and media objects (main programmes and candidate objects for insertion) have profiles and, in the case of main programme objects, are annotated with placeholders representing personalisation opportunities, i.e., locations for insertion of personalised media objects. The MultiMedia Brokerage (MMB) platform is a multiagent multilayered brokerage composed by agents that act as sellers and buyers of viewer stream timeslots and/or media objects on behalf of the registered businesses. These agents engage in negotiations to select the media objects that best match the current programme and viewer profiles.

Brokerage Platform for Media Content Recommendation

Veloso, Bruno; Malheiro, Benedita; Burguillo, Juan Carlos
Fonte: University of Zielona Góra - Institute of Control and Computation Engineering Publicador: University of Zielona Góra - Institute of Control and Computation Engineering
Tipo: Artigo de Revista Científica
Publicado em //2015 Português
Relevância na Pesquisa
37.5%
Near real time media content personalisation is nowadays a major challenge involving media content sources, distributors and viewers. This paper describes an approach to seamless recommendation, negotiation and transaction of personalised media content. It adopts an integrated view of the problem by proposing, on the business-to-business (B2B) side, a brokerage platform to negotiate the media items on behalf of the media content distributors and sources, providing viewers, on the business-to-consumer (B2C) side, with a personalised electronic programme guide (EPG) containing the set of recommended items after negotiation. In this setup, when a viewer connects, the distributor looks up and invites sources to negotiate the contents of the viewer personal EPG. The proposed multi-agent brokerage platform is structured in four layers, modelling the registration, service agreement, partner lookup, invitation as well as item recommendation, negotiation and transaction stages of the B2B processes. The recommendation service is a rule-based switch hybrid filter, including six collaborative and two content-based filters. The rule-based system selects, at runtime, the filter(s) to apply as well as the final set of recommendations to present. The filter selection is based on the data available...

El sistema de salud régimen subsidiado sin intermediación en Colombia; The health system without brokerage subsidized

Hernández Toro, Yamile; García Carvajal, Santiago
Fonte: Universidad Militar Nueva Granada; Facultad de Estudios a Distancia; Especialización en Alta Gerencia Publicador: Universidad Militar Nueva Granada; Facultad de Estudios a Distancia; Especialización en Alta Gerencia
Tipo: bachelorThesis; Trabajo de grado Formato: pdf; pdf
Português
Relevância na Pesquisa
27.03%
Dentro del crecimiento y desarrollo del país, se tienen en cuenta variables como el crecimiento en el cubrimiento de la salud para cada uno de sus habitantes. La salud es un derecho fundamental de las personas y es evidente que el sector salud esta pasando actualmente por una crisis, por falta de recurso y por la mala administración que en lugar de buscar simplificar tramites y procesos encaminados a ofrecer servicios agiles y efectivos, descargan sus responsabilidades en terceras personas que a su vez no cuentan con la infraestructura adecuada para ayudar a minimizar el problema. Por ello la presente investigación entrega sustentos para concluir que si desapareciesen las EPS-S, las labores que desempeñan estas entidades tendrán que ser asumidas por el Estado evitando la intermediación. Bajo este enfoque se hace imposible tener un control de los recursos empleados por estos intermediarios y del optimo manejo, para que dichos recursos sean destinados a cubrir los verdaderos costos en salud de la población subsidiada y la creación de nuevos mecanismos que puedan utilizarse para maximizar los recursos y minimizar los costos logrando acceder a un mayor cubrimiento en salud por parte del Estado. Para presentar los resultados se toma como base la opinión de expertos que realizan varias reflexiones respecto a que la salud en Colombia necesita cambios para la administración de los recursos. Adicionalmente...

O arrependimento no contrato de corretagem imobiliária

Carvalho, João Filipe Melo de
Fonte: Universidade Católica de Brasília Publicador: Universidade Católica de Brasília
Tipo: Trabalho de Conclusão de Curso Formato: Texto
Português
Relevância na Pesquisa
27.03%
Busca-se no presente trabalho, examinar de forma pratica e teórica as relações contratuais imobiliárias envolvendo a figura do Corretor de Imóveis. Observa-se, no trabalho que para melhor elucidação quanto ao tema, foi pertinente iniciar o estudo dês da evolução histórica dos contratos de corretagem imobiliária, bem como apresentar seus principais princípios norteadores, sempre sob o prisma da remuneração do corretor, para ao final, adentrar em específico, no fenômeno do arrependimento das partes na negociação, fundamentando as afirmativas sempre em jurisprudências e doutrina.; Search in the present work, to consider theoretical and practical contractual relationships involving the figure of the real estate realtor. It is observed that the work to elucidate on the issue, was relevant to start the study of historical des contracts for real estate brokerage and to present its key guiding principles, always from the perspective of the broker's fee, to the end, go into specific phenomenon of repentance in the negotiating parties, stating the reasons for affirmative always jurisprudence and doctrine.; Direito

Learning from Others, Together: Brokerage, Closure and Team Performance

Uribe, Jose; Wang, Dan
Fonte: Universidade Cornell Publicador: Universidade Cornell
Tipo: Artigo de Revista Científica
Publicado em 29/06/2014 Português
Relevância na Pesquisa
27.03%
Scholarship on teams has focused on the relationship between a team's performance, however defined, and the network structure among team members. For example, Uzzi and Spiro (2005) find that the creative performance of Broadway musical teams depends heavily on the internal cohesion of team members and their past collaborative experience with individuals outside their immediate teams. In other words, team members' internal cohesion and external ties are crucial to the team's success. How, then, do they interact to produce positive performance outcomes? In our work, we separate the proximal causes of tie formation from the proximal determinants of outcomes to determine the mechanism behind this interaction. To examine this puzzle, we examine the performance of national soccer squads over time as a function of changing levels and configurations of brokerage and closure ties formed by players working for professional soccer clubs.

Una definición estructural de capital social

García-Valdecasas Medina, José I.
Fonte: Universidade Autônoma de Barcelona Publicador: Universidade Autônoma de Barcelona
Tipo: Artigo de Revista Científica Formato: text/html; application/pdf
Publicado em //2011 Português
Relevância na Pesquisa
27.5%
Este trabajo es una revisión de una definición de capital social que conecta la estructura topológica de las redes sociales -donde los individuos están insertos- con los recursos disponibles para dichos individuos en tales redes. El capital social, tal como aquí se defiende, consiste en una serie de recursos que los individuos pueden obtener a partir de las estructuras de las redes sociales. Dos de los recursos más importantes son la información que fluye por las redes y las obligaciones de reciprocidad que pueden generarse de la confianza mutua entre los agentes de la misma red. Ambos aspectos del capital social -información y reciprocidad- están íntimamente relacionados con la estructura de las redes: por un lado, el flujo de información depende de ciertas configuraciones estructurales (brokerage) caracterizadas por bajas longitudes de paso; y, por otro lado, las obligaciones de reciprocidad dependen de otras distribuciones estructurales (closure) determinadas por altos coeficientes de clustering.; This paper is a review of a definition of social capital that relates the topological structure of social networks, in which individuals are embedded, to the resources available to individuals in such networks. Social capital...

Detecting information pooling : evidence from earnings forecasts after brokerage mergers

Ng, Serena; Shum, Matt
Fonte: Berkeley Electronic Press Publicador: Berkeley Electronic Press
Tipo: Article; PeerReviewed Formato: application/pdf
Publicado em 20/11/2007 Português
Relevância na Pesquisa
27.62%
Forecast improvements can be expected if the two partners involved in a brokerage merger pool information and expertise. We examine four large mergers of brokerage firms in the last decade to study the incidence of and explanations for forecast improvements after the mergers. At the brokerage-level, we find that for two of the four mergers, forecast improvements appear more pronounced in subsamples of stocks for which both of the pre-merger analysts were retained in the merged brokerage. At the analyst-level, we find only weak evidence of forecast improvements after the merger. However, we find evidence that after a merger, a stock is more likely to be assigned to an analyst with overall better forecasting performance before the merger. This suggests that analyst selection can be a mechanism generating the post-merger forecasting improvements.