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Search Results: 1 - 10 of 199200 matches for " Sergio G. Lazzarini "
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The transition from alliance networks to multilateral alliances in the global airline industry
Lazzarini, Sergio G.;
BAR. Brazilian Administration Review , 2008, DOI: 10.1590/S1807-76922008000100003
Abstract: this study examines conditions in which alliance networks (informal webs of bilateral entanglements between firms) may or may not evolve into multilateral alliances (broad, formal multiple-firm arrangements). i offer a theory to explain the formation of multilateral alliances based on both the resource profile and the structure of existing interfirm networks, and provide an initial test of that theory in the context of the global airline industry. using data from 75 global airlines and their alliances, i propose a methodology to retrieve samples of alliance networks and then use regression analysis to assess how the resource profile and the structure of these networks influence their formalization into multilateral alliances. i find that multilateral alliances are more likely to emerge when alliance networks exhibit high resource diversity and network structure characterized by moderate density and high centralization. apparently, while highly sparse networks reduce actors' awareness of their potential joint collaboration, highly dense or embedded networks substitute for the need for formal controls accompanying multilateral agreements. the effect of centralization suggests that the formation of multilateral alliances tends to be triggered by leading actors directly connected to other network members.
Mudar tudo para n?o mudar nada: análise da dinamica de redes de proprietários no Brasil como "mundos pequenos"
Lazzarini, Sergio G.;
RAE eletr?nica , 2007, DOI: 10.1590/S1676-56482007000100007
Abstract: this study analyzes ownership networks, whereby ties between owners are defined by common ownership of one or several companies, in order to analyze changes in these ties due to the restructuring events that occurred in brazil from 1995 to 2003 (privatizations and entry of foreign capital). using network analysis, it is observed that owners? networks are characterized as "small worlds": while there are groups of owners extensively connected with one another, there are some few central actors that help connect different groups. due to their strategic position in the network, such owners-chiefly, pension funds and the government-could exploit acquisition opportunities resulting from the restructuring of the economy. consequently, contrary to interpretations usually found in the literature, in the period under analysis the position of certain local owners, vis-à-vis foreign firms and investors, was apparently reinforced.
The Transition from Alliance Networks to Multilateral Alliances in the Global Airline Industry
Sergio G. Lazzarini
BAR. Brazilian Administration Review , 2008,
Abstract: This study examines conditions in which alliance networks (informal webs of bilateral entanglements between firms) may or may not evolve into multilateral alliances (broad, formal multiple-firm arrangements). I offer a theory to explain the formation of multilateral alliances based on both the resource profile and the structure of existing interfirm networks, and provide an initial test of that theory in the context of the global airline industry. Using data from 75 global airlines and their alliances, I propose a methodology to retrieve samples of alliance networks and then use regression analysis to assess how the resource profile and the structure of these networks influence their formalization into multilateral alliances. I find that multilateral alliances are more likely to emerge when alliance networks exhibit high resource diversity and network structure characterized by moderate density and high centralization. Apparently, while highly sparse networks reduce actors’ awareness of their potential joint collaboration, highly dense or embedded networks substitute for the need for formal controls accompanying multilateral agreements. The effect of centralization suggests that the formation of multilateral alliances tends to be triggered by leading actors directly connected to other network members.
Impactos da participa??o privada no sistema prisional: evidências a partir da terceiriza??o de pris?es no Paraná
Cabral, Sandro;Lazzarini, Sergio G.;
Revista de Administra??o Contemporanea , 2010, DOI: 10.1590/S1415-65552010000300002
Abstract: this paper aims to discuss the impacts of private companies on public service provision by analyzing the outsourcing of prison services in paraná state, brazil. by using a principal-agent approach, the present work compares privately operated prisons with traditional prisons wholly managed by the state 2001 to 2006. it evaluates whether or not outsourcing impacted the performance indicators of prisons and, consequently, analyzes the effectiveness of outsourcing. in accordance with the theoretical references, the strategic decisions of governments when involving the private sector in the prison system would lead to reduced costs in detriment of the quality of services. however, the results show that outsourced prisons did not only show cost savings but also increased quality standards in comparison with traditional public prisons. the study concludes by discussing the organizational mechanisms that might generate such results.
Impactos da Participa o Privada no Sistema Prisional: Evidências a partir da Terceiriza o de Pris es no Paraná
Sandro Cabral,Sergio G. Lazzarini
Revista de Administra??o Contemporanea , 2010,
Abstract: This paper aims to discuss the impacts of private companies on public service provision by analyzing the outsourcing of prison services in Paraná State, Brazil. By using a principal-agent approach, the present work compares privately operated prisons with traditional prisons wholly managed by the state 2001 to 2006. It evaluates whether or not outsourcing impacted the performance indicators of prisons and, consequently, analyzes the effectiveness of outsourcing. In accordance with the theoretical references, the strategic decisions of governments when involving the private sector in the prison system would lead to reduced costs in detriment of the quality of services. However, the results show that outsourced prisons did not only show cost savings but also increased quality standards in comparison with traditional public prisons. The study concludes by discussing the organizational mechanisms that might generate such results.
Do organizational incentives spur innovation?
Barros, Henrique M.;Lazzarini, Sergio G.;
BAR. Brazilian Administration Review , 2012, DOI: 10.1590/S1807-76922012000300005
Abstract: to date, we have only partially begun to develop an understanding of the channels through which innovation is facilitated within organizations. although talented individuals are pivotal to supporting knowledge accumulation and renewal, they may be more willing to contribute new ideas if they expect to reap some of the gains that these ideas generate for the firm. in considering this perspective, this paper addresses whether organizational incentives affect innovation, and considers the conduits through which this link is established. in particular, this paper uses agency theory to address whether performance-based pay and performance-based promotion foster firm innovation. our analysis relies upon a survey of 370 brazilian manufacturing and services firms. based on estimations of two-stage models, our results indicate that promotion is a more useful tool for encouraging innovation than pay. in addition, there seems to be a threshold above which the use of performance-based promotion is marginal.
Do Organizational Incentives Spur Innovation?
Henrique M. Barros,Sergio G. Lazzarini
BAR. Brazilian Administration Review , 2012,
Abstract: To date, we have only partially begun to develop an understanding of the channels through which innovation is facilitated within organizations. Although talented individuals are pivotal to supporting knowledge accumulation and renewal, they may be more willing to contribute new ideas if they expect to reap some of the gains that these ideas generate for the firm. In considering this perspective, this paper addresses whether organizational incentives affect innovation, and considers the conduits through which this link is established. In particular, this paper uses agency theory to address whether performance-based pay and performance-based promotion foster firm innovation. Our analysis relies upon a survey of 370 Brazilian manufacturing and services firms. Based on estimations of two-stage models, our results indicate that promotion is a more useful tool for encouraging innovation than pay. In addition, there seems to be a threshold above which the use of performance-based promotion is marginal.
Conduits of Innovation or Imitation? Assessing the Effect of Alliances on the Persistence of Profits in U.S. Firms
Sergio G. Lazzarini,Luiz A. L. Brito,Fabio R. Chaddad
BAR. Brazilian Administration Review , 2013,
Abstract: This paper examines if a firm’s alliances affect the persistence of its financial performance. The literature suggests two conflicting views concerning this effect. In particular, access to resources and innovation and the risk of imitation from alliances can have different impacts on performance. In our empirical analysis, based on a panel of 509 firms covering the years 1992 to 2002, return on assets was regressed on the number of alliances and other control variables using hierarchical linear modeling. Results support the positive view of alliances as mechanisms to sustain competitive advantage and escape from competitive disadvantage through access to external, valuable resources held by other firms. Alliances also help firms to constantly innovate and buffer themselves from external shocks that erode existing advantages. Our results, however, may be specific to the period and the institutional context under consideration and we do not distinguish between types, purposes and “strength” of alliances. We contribute to the debate about profit persistence by examining one particular factorthat has been neglected in the literature: the extent to which firms engage in alliances with other actors. From a managerial perspective, our study shows that alliances can be used as an effective tool to support superior performance or avoid lock-in into inferior performance.
Diffeomorphism Cohomology in Beltrami Parametrization II : The 1-Forms
G. Bandelloni,S. Lazzarini
Physics , 1994, DOI: 10.1063/1.531301
Abstract: We study the 1-form diffeomorphism cohomologies within a local conformal Lagrangian Field Theory model built on a two dimensional Riemann surface with no boundary. We consider the case of scalar matter fields and the complex structure is parametrized by Beltrami differential. The analysis is first performed at the Classical level, and then we improve the quantum extension, introducing the current in the Lagrangian dynamics, coupled to external source fields. We show that the anomalies which spoil the current conservations take origin from the holomorphy region of the external fields, and only the differential spin 1 and 2 currents (as well their c.c) could be anomalous.
The role of complex structures in w-symmetry
G. Bandelloni,S. Lazzarini
Physics , 2000, DOI: 10.1016/S0550-3213(00)00129-2
Abstract: In a symplectic framework, the infinitesimal action of symplectomorphisms together with suitable reparametrizations of the two dimensional complex base space generate some type of W-algebras. It turns out that complex structures parametrized by Beltrami differentials play an important role in this context. The construction parallels very closely two dimensional Lagrangian conformal models where Beltrami differentials are fundamental.
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