Implications of TOC on TCE Sourcing-Based Decision

Title: Implications of TOC on TCE Sourcing-Based Decision.

Abstract: A significant group of works and authors presents different methods and criteria for taking sourcing decisions. The Theory of Transactions-Cost-Economics (TCE) appeared as one of the main approaches to base each sourcing decision. However, decisions based on cost transactions not taking in account the service system perspective may lead to not intuitive results. The Theory of Constraints proposes a whole system analysis since it considers that cost reductions reflect systemically only when improvements are made in the constraint of the system. This paper presents the contributions of the Theory of Constraints (TOC) for taking sourcing decisions and its implications for TCE. The TOC approach reflects not only on sourcing decisions but also on managing and continually improving the whole service provision. Our approach consists on reviewing and analyzing TCE and TOC in what refers to implications for sourcing operations and presenting simulation using the two different approaches for taking a decision. After that the results are discussed for illustrating the TOC implications. The analysis shows that better sourcing decisions can be achieved through the synergetic application of Theory of Constraints and Theory of Transactions-Cost-Economics.

Journal: International Journal of Business and Management Tomorrow, v. 2, p. 1-14, 2012.

Authors: Daniel Pacheco Lacerda, Luis Henrique Rodrigues, Ricardo Augusto Cassel, Secundino L.H. Corcini Neto.

New economics: a proposal for meaning

Title: Novas economias: uma proposta de significação. (New economics: a proposal for meaning).

Abstract: This study proposes a meaning to the expression "New Economies", bringing theoretical and practical elements as a basis for the discussion and construction of that concept. The discussion begins with the proposition of five guiding dimensions for the concept of New Economics: i) competitiveness; ii) entrepreneurship; iii) sustainability; iv) innovation; and v) market orientation. Then, it presents a survey conducted with 120 companies from the State of Rio Grande do Sul aiming to measure the extent to which they consider themselves ready to compete in the New Economics. The results show significant evidence that the companies realize the importance of the proposed dimensions, judging themselves prepared to act according to that concept.

Journal: Produção (São Paulo. Impresso), v. 22, p. 490-501, 2012.

Authors: Guilherme Luís R. Vaccaro, Luis Felipe Riehs Camargo, Débora Oliveira da Silva, Cristopher R. Pohlmann.

Customizing services to improve operational efficiency: A case study of one educational company from Brazil

Title: Customizing services to improve operational efficiency: A case study of one educational company from Brazil.

Abstract: Production of educational services has presented several concepts and a growing importance within the area of operations; although, few studies have tried to demonstrate the use of such concepts and production techniques for the educational area. Studies in this area are important due to its characteristics of an almost pure service. This article has the objective of analyzing the modifications in the production area of services made by a school. For so much, it has made a theoretical increase concerning the theme, and a case has been analyzed. The authors made some criticisms and finally conclude that production theory can aid the development of the operations in the educational area.

Journal: African Journal of Business Management, v. 6, p. 3968-3976, 2012.

Authors: Daniel Pacheco Lacerda, Secundino L.H. Corcini Neto, Rafael Teixeira.

Management Model of Productive Capacity: Integrating Theory of Constraints and the Global Operational Efficiency Index (IROG)

Title: Modelo de gerenciamento da capacidade produtiva: integrando teoria das restrições e o índice de rendimento operacional global (IROG). (Management Model of Productive Capacity: Integrating Theory of Constraints and the Global Operational Efficiency Index (IROG)).

Abstract: This paper presents a model of management capacity in productive systems integrating the concepts of the Theory of Constraints and Total Productive Maintenance (TPM). The main objective of this study is to discuss and propose a model of management capacity, able to answer the following key questions: i) capacity indicators which should be considered and how to measure them to measure the productive capacity of manufacturing systems? ii) what is the real productive capacity of the system analyzed under a determined relationship between capacity and demand? The discussion of the proposed model is relevant because the definition of productive capacity system enables better management of resources and capabilities, improve production scheduling on the factory floor and meeting the demands imposed by the market. This paper presents the proposition of using the Operating Income Index Global (IROG) with a different approach from traditional literature dealing with the theme, presented by Nakajima (1988). The results of this paper enable to develop a model to determine the capacity of the production system and the impact on the productive capacity of the Revista Produção Online, Florianópolis, SC, v.12, n. 3, p. 806-826, jul./set. 2012. 807 entire system, not to consider the quality conformances that occur after the bottleneck resource of the production flow.

Journal: Produção Online, v. 12, p. 806, 2012.

Authors: José Antônio Valle Antunes Jr, Diego A. J. Pacheco, Daniel Pacheco Lacerda, Dieter Brackman Goldmeyer, Charles Von Gilsa.

Theoretical discussion of the concept of wastes in the Toyota Production System: introducing the throughput logic of the Theory of Constraints

Title: Discussão teórica sobre o conceito de Perdas do Sistema Toyota de Produção: Inserindo a lógica do ganho da Teoria das Restrições. (Theoretical discussion of the concept of wastes in the Toyota Production System: introducing the throughput logic of the Theory of Constraints).

Abstract: This study presents a theoretical reflection about the possible impacts on of the Theory of Constraints (TOC) indicators caused by the Seven Wastes in the Toyota Production System (TPS) and a type of waste which is not included in that context. It refers to the 'waste due to unsatisfactory definition of product mix' influenced by the use of inappropriate methods to formulate the product mix. Therefore, a conceptual neologism is introduced, identified as the "Pergas" to demonstrate the overall gain waste derived from this practice. The need to reduce process waste is due to the fact that no value is added to the product and the cost increase putting at risk, in some situations, the organizational competitiveness. Similarly, the fight against "Pergas" leads to an increase in the indexes monitored by the Global indicators of TOC, through the creation of a mix of products that contributes to the company's goal. A structural framework was developed relating the seven Wastes addressed in the TPS and TOC indicators, which will provide subsidies to support the relations that cause impacts and will enable the proposal of improvement actions focusing on reducing the impacts presented.

Journal: Gestão e Produção (UFSCar. Impresso), v. 18, p. 673-686, 2011.

Authors: Luis Henrique RodriguesDaniel Pacheco Lacerda, Isaac Pergher.

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