9 resultados para Multicommodity capacitated network design problem
em Repositório digital da Fundação Getúlio Vargas - FGV
Resumo:
In this paper, we discuss the trade-o¤ between specialization and coordination in an organizational design problem. Most papers on the assignment of heterogeneous managers to di¤erent hierarchic levels emphasize the role of talent: better managers should be on top of hierarchies. However, this requires talent to be measured on an one-dimensional scale. In this paper, we explore the implications of allowing talent to have two dimensions: breadth and depth. Specialists have deep knowledge of few areas while generalists have narrow knowledge of many areas. When perfect communication is impossible, hierarchies arise in which generalists are at the top and specialists are at the bottom. We propose a model of imperfect communication and discuss its implications for organizational design, the optimal degree of centralization and the depth of hierarchies. We show that our model also implies plausible organizational structures, like balanced hierarchies and pyramidal structures.
Resumo:
We analyze the contractual design problem of a principal who delegates decision-making and information provision. The principal faces two tasks: he has to decide the level of discretion to be granted to the decision-maker and to establish who is in charge of supplying the information. We show that these two choices are intrinsically related. When the decision-maker is granted high discretion, information provision is optimally delegated to the parties directly affected by the decision. Conversely, when the decision-maker enjoys little discretion, it is more desirable to rely on a third impartial agent. The paper helps rationalize some organizational arrangements that are commonly observed in the context of judicial and antitrust decision-making.
Resumo:
Supply chain coordination (SCC) can be a challenge for many organizations as different firms in the same chain has different expectations and interdependencies (Arshinder & Deshmukh, 2008). Lack of SCC can result in the bullwhip effect and poor performance for a firm and its partners. By investigating the phenomenon in the Brazilian pharmaceutical supply chain using a qualitative research, this paper aims to understand the main issues that avoid a better integrated chain. Results of 21 interviews suggested that the lack of coordination in this environment was influenced by the network design and the history of the sector in Brazil, as well as scarce resources
Resumo:
Whether human capital increases or decreases wage uncertainty is an open question from an empirical standpoint. Yet, most policy prescriptions regarding human capital formation are based on models that impose riskiness on this type of investment. In a two period and finite type optimal income taxation problem we derive prescriptions that are robust to the risk characteristics of human capital: savings should be discouraged, human capital investments encouraged and both types of investment driven to an efficient level from an aggregate perspective. These prescriptions are also robust to the assumptions regarding what choices are observed, despite policy instruments being not.
Resumo:
Over the past two decades there has been a profusion of empirical studies of organizational design and its relationship to efficiency, productivity and flexibility of an organization. In parallel, there has been a wide range of studies about innovation management in different kind of industries and firms. However, with some exceptions, the organizational and innovation management bodies of literature tend to examine the issues of organizational design and innovation management individually, mainly in the context of large firms operating at the technological frontier. There seems to be a scarcity of empirical studies that bring together organizational design and innovation and examine them empirically and over time in the context of small and medium sized enterprises. This dissertation seeks to provide a small contribution in that direction. This dissertation examines the dynamic relationship between organizational design and innovation. This relationship is examined on the basis of a single-case design in a medium sized mechanical engineering company in Germany. The covered time period ranges from 1958 until 2009, although the actual focus falls on the recent past. This dissertation draws on first-hand qualitative empirical evidence gathered through extensive field work. The main findings are: 1. There is always a bundle of organizational dimensions which impacts innovation. These main organizational design dimensions are: (1) Strategy & Leadership, (2) Resources & Capabilities, (3) Structure, (4) Culture, (5) Networks & Partnerships, (6) Processes and (7) Knowledge Management. However, the importance of the different organizational design dimensions changes over time. While for example for the production of simple, standardized parts, a simple organizational design was appropriate, the company needed to have a more advanced organizational design in order to be able to produce customized, complex parts with high quality. Hence the technological maturity of a company is related to its organizational maturity. 2. The introduction of innovations of the analyzed company were highly dependent on organizational conditions which enabled their introduction. The results of the long term case study show, that some innovations would not have been introduced successfully if the organizational elements like for example training and qualification, the build of network and partnerships or the acquisition of appropriate resources and capabilities, were not in place. Hence it can be concluded, that organizational design is an enabling factor for innovation. These findings contribute to advance our understanding of the complex relationship between organizational design and innovation. This highlights the growing importance of a comprehensive, innovation stimulating organizational design of companies. The results suggest to managers that innovation is not only dependent on a single organizational factor but on the appropriate, comprehensive design of the organization. Hence manager should consider to review regularly the design of their organizations in order to maintain a innovation stimulating environment.
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The author argues that by applying problem-solving negotiation skills in the design of public policies, public administrators benefit from more effective and wide-ranging outcomes in the realization of their goals. In order to demonstrate this idea, the author analyzes how negotiation skills – such as identifying key actors and their interests, recognizing hardbargaining tactics and changing the players, knowing your best alternative, creating value and building trust – permeated and contributed to the success of the City of São Paulo’s Invoice Program (“Programa Nota Fiscal Paulistana”), a public policy aimed at combating tax evasion of service tax in the City of São Paulo.
Resumo:
Esta dissertação se propõe a cartografar as redes sociotécnicas do design no campo do management nos moldes propostos pela Teoria Ator-Rede e apresentar o processo de translação pelo qual passou o termo ao adentrar no campo. Para tal, levantou e analisou artigos publicados sobre o tema nos principais periódicos da área de organizações e publicações. Estes textos demonstram como, nas últimas décadas, o design tem passado por uma expansão de sentido e aplicação na direção do management (ou do management no sentido do design), através das abordagens denominadas design thinking, design science ou design process. A pesquisa se justifica, uma vez que este assunto está presente nos principais periódicos do management e dos estudos organizacionais, como uma importante ferramenta para solução de problemas que desafiam os sistemas organizacionais, como: a mudança, o empreendedorismo e a inovação (Stephens & Boland, 2014). É importante destacar que o design tem sido cada vez mais considerado uma atividade decisiva na batalha econômica (Callon, 1986), na determinação dos atuais estilos de vida (lifestyle) e na construção de nosso mundo futuro. No campo dos estudos organizacionais, como demonstrou esta pesquisa, o design surge como uma abordagem que supera a dicotomia entre positivismo e a abordagem crítica na teoria organizacional (Jelinek, Romme & Boland, 2008). Por fim, esta dissertação se ateve à cartografia das redes sociotécnicas e à descrição das quatro principais fases do processo de translação do design no campo do management, a saber: (a) problematização, marcada pela publicação de The Sciences of Artificial em 1969 de Herbert A. Simon, no qual, ele argumenta pelo design como uma habilidade básica para todas as especialidades profissionais, incluindo a gestão (Simon, 1996), (b) interessamento, designers defendendo um design de sistemas complexos como as organizações, (c) engajamento, designers e teóricos das organizações juntos pelo design no management como uma alternativa para a superação da dicotomia entre positivismo e os estudos críticos na administração, e, (d) mobilização, na qual os teóricos das organizações partem em defesa do design no management como um forma de dar conta de modelos organizacionais contemporâneos com fronteiras mais permeáveis e em constante reformulação
Resumo:
This paper argues the euro zone requires a government banker that manages the bond market and helps finance country budget deficits. The euro solved Europe’s problem of exchange rate speculation by creating a unified currency managed by a single central bank, but in doing so it replaced the exchange rate speculation problem with bond market speculation. Remedying this requires a central bank that acts as government banker and maintains bond interest rates at sustainable levels. Because the euro is a monetary union, this must be done in a way that both avoids favoring individual countries and avoids creating incentives for irresponsible country fiscal policy that leads to “bail-outs”. The paper argues this can be accomplished via a European Public Finance Authority (EPFA) that issues public debt which the European Central Bank (ECB) is allowed to trade. The debate over the euro’s financial architecture has significant political implications. The current neoliberal inspired architecture, which imposes a complete separation between the central bank and public finances, puts governments under continuous financial pressures. That will make it difficult to maintain the European social democratic welfare state. This gives a political reason for reforming the euro and creating an EPFA that supplements the economic case for reform.
Resumo:
Esta dissertação estuda a propagação de crises sobre o sistema financeiro. Mais especi- ficamente, busca-se desenvolver modelos que permitam simular como um determinado choque econômico atinge determinados agentes do sistema financeiro e apartir dele se propagam, transformando-se em um problema sistêmico. A dissertação é dividida em dois capítulos,além da introdução. O primeiro capítulo desenvolve um modelo de propa- gação de crises em fundos de investimento baseado em ciência das redes.Combinando dois modelos de propagação em redes financeiras, um simulando a propagação de perdas em redes bipartites de ativos e agentes financeiros e o outro simulando a propagação de perdas em uma rede de investimentos diretos em quotas de outros agentes, desenvolve-se um algoritmo para simular a propagação de perdas através de ambos os mecanismos e utiliza-se este algoritmo para simular uma crise no mercado brasileiro de fundos de investimento. No capítulo 2,desenvolve-se um modelo de simulação baseado em agentes, com agentes financeiros, para simular propagação de um choque que afeta o mercado de operações compromissadas.Criamos também um mercado artificial composto por bancos, hedge funds e fundos de curto prazo e simulamos a propagação de um choque de liquidez sobre um ativo de risco securitizando utilizado para colateralizar operações compromissadas dos bancos.