Pub Date : 2021-08-02DOI: 10.1590/1806-9649-2021v28e5407
Igor Laguna Vieira, L. Rangel, E. R. D. Silva, Luiz Carlos de Martini Junior
Abstract: Large banking institutions play an important role in sustainable development, especially owing to their size and capillarity. Therefore, the objective of this study is to compare sustainability indicators (economic, environmental, and social) published in the reports of some of these institutions that operate in the Brazilian market. The four banks selected for this study were the ones that published their sustainability reports in the 2017 Global Reporting Initiative standard, and that comprised the portfolio of the Corporate Sustainability Index, promoted by “Brasil, Bolsa e Balcão,” in 2018. These banks were Banco do Brasil, Bradesco, Itaú, and Santander. The analytic hierarchy process (AHP) with the use of ratings was used to carry out the research. After elaborating on the hierarchical structure of the problem, specialists, who were researchers in the field of sustainability, were required to weigh the degree of relevance of each of the indicators analyzed in this study. A ranking of the selected banks was then obtained in relation to their sustainability performances, which was based on the weights given to each indicator and the data available in the sustainability reports of each institution investigated. The banks were ranked in the following order: Itaú, Santander, Bradesco, and Banco do Brasil. The results of this study showed that there is room for evolution in relation to sustainability, mainly in the social department, in the banking sector. The AHP method with the use of ratings proved to be efficient, especially because it allowed for the weighing of the evaluation criteria and sub-criteria; this proved the usefulness of the method in comparing companies with regard to their sustainability performance.
摘要：大型银行机构在可持续发展中发挥着重要作用，特别是由于其规模和毛细管作用。因此，本研究的目的是比较在巴西市场运营的一些机构的报告中公布的可持续性指标（经济、环境和社会）。本研究选择的四家银行是在2017年全球报告倡议标准中发布可持续发展报告的银行，它们构成了2018年由“巴西银行”推动的企业可持续发展指数的投资组合。这些银行是巴西银行、Bradesco、Itaú和Santander。采用层次分析法（AHP）结合评分法进行研究。在详细说明了问题的层次结构后，作为可持续性领域研究人员的专家被要求权衡本研究中分析的每个指标的相关性。然后，根据每个指标的权重和所调查的每个机构可持续性报告中的可用数据，获得了选定银行的可持续性表现排名。这些银行按以下顺序排列：Itaú、Santander、Bradesco和Banco do Brasil。这项研究的结果表明，在可持续性方面存在发展空间，主要是在社会部门和银行部门。使用评级的AHP方法被证明是有效的，特别是因为它允许对评估标准和子标准进行权衡；这证明了该方法在比较企业可持续发展绩效方面的有用性。
{"title":"Evaluation of the socioeconomic and environmental sustainability of banking institutions in Brazil using the Analytic Hierarchy Process with ratings approach","authors":"Igor Laguna Vieira, L. Rangel, E. R. D. Silva, Luiz Carlos de Martini Junior","doi":"10.1590/1806-9649-2021v28e5407","DOIUrl":"https://doi.org/10.1590/1806-9649-2021v28e5407","url":null,"abstract":"Abstract: Large banking institutions play an important role in sustainable development, especially owing to their size and capillarity. Therefore, the objective of this study is to compare sustainability indicators (economic, environmental, and social) published in the reports of some of these institutions that operate in the Brazilian market. The four banks selected for this study were the ones that published their sustainability reports in the 2017 Global Reporting Initiative standard, and that comprised the portfolio of the Corporate Sustainability Index, promoted by “Brasil, Bolsa e Balcão,” in 2018. These banks were Banco do Brasil, Bradesco, Itaú, and Santander. The analytic hierarchy process (AHP) with the use of ratings was used to carry out the research. After elaborating on the hierarchical structure of the problem, specialists, who were researchers in the field of sustainability, were required to weigh the degree of relevance of each of the indicators analyzed in this study. A ranking of the selected banks was then obtained in relation to their sustainability performances, which was based on the weights given to each indicator and the data available in the sustainability reports of each institution investigated. The banks were ranked in the following order: Itaú, Santander, Bradesco, and Banco do Brasil. The results of this study showed that there is room for evolution in relation to sustainability, mainly in the social department, in the banking sector. The AHP method with the use of ratings proved to be efficient, especially because it allowed for the weighing of the evaluation criteria and sub-criteria; this proved the usefulness of the method in comparing companies with regard to their sustainability performance.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49460632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-02DOI: 10.1590/1806-9649-2021v28e5450
Antonio Ricardo Lunardi, Francisco Rodrigues Lima Junior
Abstract: The supply chain performance evaluation is a critical activity to continuously improve operations. Literature presents several performance evaluation systems based on multi-criteria methods and artificial intelligence. Among them, the systems based on artificial neural networks (ANN) excel due to their capacity of modeling non-linear relationships between metrics and allowing adaptations to a specific environment by means of historical performance data. These systems’ accuracy depend directly on the adopted training algorithm, and no studies have been found that assess the efficiency of these algorithms when applied to supply chain performance evaluation. In this context, the present study evaluates four ANNs learning methods in order to investigate which one is the most adequate to deal with supply chain evaluation. The algorithms tested were Gradient Descendent Momentum, Levenberg-Marquardt, Quasi-Newton and Scale Conjugate Gradient. The performance metrics were extracted from SCOR®, which is a reference model used worldwide. The random sub-sampling cross-validation method was adopted to find the most adequate topological configuration for each model. A set of 80 topologies was implemented using MATLAB®. The prediction accuracy evaluation was based on the mean square error. For the four level 1 metrics considered, the Levenberg-Marquardt algorithm provided the most precise results. The results of correlation analysis and hypothesis tests reinforce the accuracy of the proposed models. Furthermore, the proposed computational models reached a prediction accuracy higher than previous approaches.
{"title":"Comparison of artificial neural networks learning methods to evaluate supply chain performance","authors":"Antonio Ricardo Lunardi, Francisco Rodrigues Lima Junior","doi":"10.1590/1806-9649-2021v28e5450","DOIUrl":"https://doi.org/10.1590/1806-9649-2021v28e5450","url":null,"abstract":"Abstract: The supply chain performance evaluation is a critical activity to continuously improve operations. Literature presents several performance evaluation systems based on multi-criteria methods and artificial intelligence. Among them, the systems based on artificial neural networks (ANN) excel due to their capacity of modeling non-linear relationships between metrics and allowing adaptations to a specific environment by means of historical performance data. These systems’ accuracy depend directly on the adopted training algorithm, and no studies have been found that assess the efficiency of these algorithms when applied to supply chain performance evaluation. In this context, the present study evaluates four ANNs learning methods in order to investigate which one is the most adequate to deal with supply chain evaluation. The algorithms tested were Gradient Descendent Momentum, Levenberg-Marquardt, Quasi-Newton and Scale Conjugate Gradient. The performance metrics were extracted from SCOR®, which is a reference model used worldwide. The random sub-sampling cross-validation method was adopted to find the most adequate topological configuration for each model. A set of 80 topologies was implemented using MATLAB®. The prediction accuracy evaluation was based on the mean square error. For the four level 1 metrics considered, the Levenberg-Marquardt algorithm provided the most precise results. The results of correlation analysis and hypothesis tests reinforce the accuracy of the proposed models. Furthermore, the proposed computational models reached a prediction accuracy higher than previous approaches.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49137513","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-08-02DOI: 10.1590/1806-9649-2021v28e5669
Olívia Carolina de Resende Ribeiro, P. S. Steiner Neto
Abstract: The objective of this work was to present the analysis instruments of Green Innovation that seek to relate it to Sustainable Competitive Advantage. Determining the research instruments through which we can analyze the relations between Organizational Capacity, Green Innovation, and Performance can enlighten us in what contributes with the levels of competitiveness of a specific industry, i.e., the sustainable competitive advantage. To do this, we focused on articles indexed in Thomson Reuters, ´Web of Science databank. We analyzed the articles have been most cited and which had presented scales for the analysis and understanding of Green Innovation instruments. We explored three of the most cited articles. These works address innovation from the perspective of Green Innovation and seek to analyze the superior performance of environmental innovations through specific scales. The studies in question adopt quantitative research approaches and operationalized through surveys. According to our analysis, the instruments can represent significant advances concerning the problem addressed in this study.
摘要:本研究的目的是提出绿色创新的分析工具，试图将其与可持续竞争优势联系起来。通过确定研究工具，我们可以分析组织能力、绿色创新和绩效之间的关系，可以启发我们对特定行业竞争力水平的贡献，即可持续竞争优势。为了做到这一点，我们专注于在汤森路透，Web of Science数据库中索引的文章。我们分析了被引用次数最多的文章，这些文章为分析和理解绿色创新工具提供了尺度。我们研究了三篇被引用最多的文章。这些作品从绿色创新的角度来探讨创新，并试图通过特定的尺度来分析环境创新的卓越绩效。有关研究采用定量研究方法，并通过调查加以实施。根据我们的分析，这些工具可以代表本研究中解决的问题的重大进展。
{"title":"Sustainable competitive advantage and green innovation: a review of joint scale propositions","authors":"Olívia Carolina de Resende Ribeiro, P. S. Steiner Neto","doi":"10.1590/1806-9649-2021v28e5669","DOIUrl":"https://doi.org/10.1590/1806-9649-2021v28e5669","url":null,"abstract":"Abstract: The objective of this work was to present the analysis instruments of Green Innovation that seek to relate it to Sustainable Competitive Advantage. Determining the research instruments through which we can analyze the relations between Organizational Capacity, Green Innovation, and Performance can enlighten us in what contributes with the levels of competitiveness of a specific industry, i.e., the sustainable competitive advantage. To do this, we focused on articles indexed in Thomson Reuters, ´Web of Science databank. We analyzed the articles have been most cited and which had presented scales for the analysis and understanding of Green Innovation instruments. We explored three of the most cited articles. These works address innovation from the perspective of Green Innovation and seek to analyze the superior performance of environmental innovations through specific scales. The studies in question adopt quantitative research approaches and operationalized through surveys. According to our analysis, the instruments can represent significant advances concerning the problem addressed in this study.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-08-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67160669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-12DOI: 10.1590/1806-9649-2021v28e062
B. Simões, E. Epprecht
Abstract: In a multiple stream process (MSP) a product is manufactured in a number of streams in parallel. The traditional tool for monitoring MSPs, the group control chart (GCC), does not take into account that typically the value of the quality variable in each stream is the sum of a component common to all streams and an individual component, of the particular stream. This may render the GCC ineffective in detecting shifts in the mean of individual streams. Based on this two-components model, we propose an exponentially weighted moving average (EWMA) GCC to monitor the means of the individual streams components. We optimize its design (minimizing the ARL for given shifts in the mean of a stream) and compare their ARLs with the ones of other existing charts devised for two-components MSPs. For this comparison, we needed to obtain optimal designs of these previous charts too, which were not available in the literature; this is an additional contribution of our work. The ARLs of the charts were obtained by simulation, with a number of runs sufficiently large to ensure precise results. The results show that the proposed chart outperforms the previous ones, becoming thus recommended for the statistical control of MSPs.
{"title":"An EWMA control chart for the mean of individual streams in multiple stream processes","authors":"B. Simões, E. Epprecht","doi":"10.1590/1806-9649-2021v28e062","DOIUrl":"https://doi.org/10.1590/1806-9649-2021v28e062","url":null,"abstract":"Abstract: In a multiple stream process (MSP) a product is manufactured in a number of streams in parallel. The traditional tool for monitoring MSPs, the group control chart (GCC), does not take into account that typically the value of the quality variable in each stream is the sum of a component common to all streams and an individual component, of the particular stream. This may render the GCC ineffective in detecting shifts in the mean of individual streams. Based on this two-components model, we propose an exponentially weighted moving average (EWMA) GCC to monitor the means of the individual streams components. We optimize its design (minimizing the ARL for given shifts in the mean of a stream) and compare their ARLs with the ones of other existing charts devised for two-components MSPs. For this comparison, we needed to obtain optimal designs of these previous charts too, which were not available in the literature; this is an additional contribution of our work. The ARLs of the charts were obtained by simulation, with a number of runs sufficiently large to ensure precise results. The results show that the proposed chart outperforms the previous ones, becoming thus recommended for the statistical control of MSPs.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49254085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-02DOI: 10.1590/1806-9649-2021v28e41
Ramzi Talmoudi, Ali Achouri, H. Taleb
Abstract: Marcucci (1985) proposed a chi square goodness of fit statistic based generalized p-chart for multinomial process monitoring. A chi square distribution quantile was considered as a control chart limit. A weighted chi square goodness of fit statistic-based control chart is proposed for multinomial process monitoring in this paper, where more important weights are advocated to poor quality categories. The statistic distribution is approximated by a well-known linear combination of chi squares distribution. The approximation is assessed through a simulation, an extreme percentile of the approximated distribution is used as an upper control chart limit and a comparison is carried out with a chi square goodness of fit statistic-based control chart. The average run length is used as a benchmark and the comparison is performed using simulations considering two process shifts scenarios. Under some restrictions, the weighted statistic-based control chart allows an earlier detection of process shift in case of deterioration and postpones out of control signals in case of improvement. This benefit is clearer when the process is improved by a decrease in the poor quality probability category and an increase in the best quality category probability.
{"title":"Linear combination of chi-squares for multinomial process monitoring","authors":"Ramzi Talmoudi, Ali Achouri, H. Taleb","doi":"10.1590/1806-9649-2021v28e41","DOIUrl":"https://doi.org/10.1590/1806-9649-2021v28e41","url":null,"abstract":"Abstract: Marcucci (1985) proposed a chi square goodness of fit statistic based generalized p-chart for multinomial process monitoring. A chi square distribution quantile was considered as a control chart limit. A weighted chi square goodness of fit statistic-based control chart is proposed for multinomial process monitoring in this paper, where more important weights are advocated to poor quality categories. The statistic distribution is approximated by a well-known linear combination of chi squares distribution. The approximation is assessed through a simulation, an extreme percentile of the approximated distribution is used as an upper control chart limit and a comparison is carried out with a chi square goodness of fit statistic-based control chart. The average run length is used as a benchmark and the comparison is performed using simulations considering two process shifts scenarios. Under some restrictions, the weighted statistic-based control chart allows an earlier detection of process shift in case of deterioration and postpones out of control signals in case of improvement. This benefit is clearer when the process is improved by a decrease in the poor quality probability category and an increase in the best quality category probability.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48133858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-07-02DOI: 10.1590/1806-9649-2021v28e43
Achouri Ali, Emira Khedhiri, Ramzi Talmoudi, H. Taleb
Abstract: Interpreting an out-of-control signal is a crucial step in monitoring categorical processes. For the Chi-Square Control Chart (CSCC), an out-of control situation does not specify if it was a process deterioration or a process improvement. For this reason, a weighted chi-square statistical control chart WSCC is proposed with different weighting categories in order to enable an accelerated disclosure of a control situation after a shift due to a deterioration of quality and on the other hand, decelerate an out of control situation after a shift due to a quality improvement. Furthermore, in comparison with Marcucci’s method, the new procedure provides an accurate and easier way to interpret several signals. In other words, the WSCC allows a faster detection of an out-of control situation in the case of a quality deterioration, however, an out-of control situation is not quickly detected in the case of a quality improvement. Indeed, comparative studies have been performed to find the best control chart for each combination. Concluding remarks with comments and recommendations are given based on Average Run Length (ARL) and standard deviation run length (SDRL).
{"title":"Monitoring multinomial processes based on a weighted chi-square control chart","authors":"Achouri Ali, Emira Khedhiri, Ramzi Talmoudi, H. Taleb","doi":"10.1590/1806-9649-2021v28e43","DOIUrl":"https://doi.org/10.1590/1806-9649-2021v28e43","url":null,"abstract":"Abstract: Interpreting an out-of-control signal is a crucial step in monitoring categorical processes. For the Chi-Square Control Chart (CSCC), an out-of control situation does not specify if it was a process deterioration or a process improvement. For this reason, a weighted chi-square statistical control chart WSCC is proposed with different weighting categories in order to enable an accelerated disclosure of a control situation after a shift due to a deterioration of quality and on the other hand, decelerate an out of control situation after a shift due to a quality improvement. Furthermore, in comparison with Marcucci’s method, the new procedure provides an accurate and easier way to interpret several signals. In other words, the WSCC allows a faster detection of an out-of control situation in the case of a quality deterioration, however, an out-of control situation is not quickly detected in the case of a quality improvement. Indeed, comparative studies have been performed to find the best control chart for each combination. Concluding remarks with comments and recommendations are given based on Average Run Length (ARL) and standard deviation run length (SDRL).","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67160094","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.1590/1806-9649-2020v28e5065
D. A. S. L. Vega, Paula Horta Lemos, J. E. A. R. D. Silva, J. Vieira
Abstract: Choosing between Less Than Truckload (LTL) and Full Truckload (FTL) is based on a multicriteria decision because it takes into account aspects such as costs and operational efficiency in transportation, handling and stock of goods. The aim of this article is to provide a detailed analysis of the criteria that comprise the LTL and FTL transport decision using a multicriteria methodology that considers decision makers´ preferences. The SMARTS method was applied in a telecommunications company that outsources its logistics operation. Results show that the main criteria for choosing LTL shipment are related to the relationship with the customer and the efficiency in the delivery of the freight (reliability of the delivery time). On the other hand, choosing FTL transport requires a high weight given to the criteria regarding benefits and cost of transit inventory. The contribution of the research is to provide a structured and flexible analysis to choose the types of shipment (FTL and FLT) when taking into account the risk aversion of decision makers using a non-optimal approach, but with approximate solutions encompassing several qualitative and quantitative criteria in this choice.
{"title":"Criteria analysis for deciding the LTL and FTL modes of transport","authors":"D. A. S. L. Vega, Paula Horta Lemos, J. E. A. R. D. Silva, J. Vieira","doi":"10.1590/1806-9649-2020v28e5065","DOIUrl":"https://doi.org/10.1590/1806-9649-2020v28e5065","url":null,"abstract":"Abstract: Choosing between Less Than Truckload (LTL) and Full Truckload (FTL) is based on a multicriteria decision because it takes into account aspects such as costs and operational efficiency in transportation, handling and stock of goods. The aim of this article is to provide a detailed analysis of the criteria that comprise the LTL and FTL transport decision using a multicriteria methodology that considers decision makers´ preferences. The SMARTS method was applied in a telecommunications company that outsources its logistics operation. Results show that the main criteria for choosing LTL shipment are related to the relationship with the customer and the efficiency in the delivery of the freight (reliability of the delivery time). On the other hand, choosing FTL transport requires a high weight given to the criteria regarding benefits and cost of transit inventory. The contribution of the research is to provide a structured and flexible analysis to choose the types of shipment (FTL and FLT) when taking into account the risk aversion of decision makers using a non-optimal approach, but with approximate solutions encompassing several qualitative and quantitative criteria in this choice.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47665333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-30DOI: 10.1590/1806-9649-2020v28e5415
Lucas Rodrigues Deliberador, A. S. César, M. Batalha
Abstract: About one-third of the world's food production is lost or wasted annually at different stages of food supply chains (FSCs). Food loss usually occurs in the early stages of FSCs, while waste is more prevalent in their final stages. Thus, the main objectives of the present study were to investigate the causes of loss and waste, as well as strategies that can minimize them. Decreasing food waste in collective catering organizations, including university restaurants, is situated in the context of these concerns. In order to contribute to this discussion, the authors investigated the causes of wastage in university restaurants and possible interventions recommended in the literature to reduce it. A search considering the “food waste” and “university restaurant” constructs in five different databases found 352 publications related to the theme, of which 21 supported to answer the two questions that guided this search: Q1: “What are the causes that contribute to food waste in university restaurants?” and Q2: “What are the interventions that can be or are used in university restaurants to reduce food waste?” The literature search identified 13 causes (portion size; quality; price; emotion; palatability; preparation/cooking; menu; time; satiety; storage; service; overbuying; security) and 14 possible interventions (campaigns; trayless systems; waste management; portion size; quality; changing menus; planning; preordering; charity/donations; nutritional information; coercion; changing the dishes; preparation/cooking; storage). From this perspective, the present article provides a holistic view of food waste in university restaurants, in order to guide mitigation interventions and future research on this theme.
{"title":"How to fight food waste in university restaurants?","authors":"Lucas Rodrigues Deliberador, A. S. César, M. Batalha","doi":"10.1590/1806-9649-2020v28e5415","DOIUrl":"https://doi.org/10.1590/1806-9649-2020v28e5415","url":null,"abstract":"Abstract: About one-third of the world's food production is lost or wasted annually at different stages of food supply chains (FSCs). Food loss usually occurs in the early stages of FSCs, while waste is more prevalent in their final stages. Thus, the main objectives of the present study were to investigate the causes of loss and waste, as well as strategies that can minimize them. Decreasing food waste in collective catering organizations, including university restaurants, is situated in the context of these concerns. In order to contribute to this discussion, the authors investigated the causes of wastage in university restaurants and possible interventions recommended in the literature to reduce it. A search considering the “food waste” and “university restaurant” constructs in five different databases found 352 publications related to the theme, of which 21 supported to answer the two questions that guided this search: Q1: “What are the causes that contribute to food waste in university restaurants?” and Q2: “What are the interventions that can be or are used in university restaurants to reduce food waste?” The literature search identified 13 causes (portion size; quality; price; emotion; palatability; preparation/cooking; menu; time; satiety; storage; service; overbuying; security) and 14 possible interventions (campaigns; trayless systems; waste management; portion size; quality; changing menus; planning; preordering; charity/donations; nutritional information; coercion; changing the dishes; preparation/cooking; storage). From this perspective, the present article provides a holistic view of food waste in university restaurants, in order to guide mitigation interventions and future research on this theme.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67159745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-06-01DOI: 10.1590/1806-9649-2021v28e5300
Iara Franchi Arromba, R. Anholon, I. Rampasso, Dirceu Silva, O. Quelhas, L. A. Santa-Eulalia, W. Leal Filho
Abstract: This article analyses the difficulties observed in adopting the Total Productive Maintenance (TPM) program in production systems. The research strategies used for this purpose consisted of a literature review, a panel of experts and a survey with professionals working in manufacturing companies. Altogether, 69 market professionals took part in the survey and the collected data was analyzed through the PLS-SEM technique. Results indicate that there is a causal relationship between difficulties associated with the planning phase of a TPM program and issues associated with its implementation. This is an original research and the results are valuable to business professionals desiring to properly implement TPM, as well for researchers interested in the mechanics of total productive maintenance system’s adoption.
{"title":"Difficulties observed when implementing Total Productive Maintenance (TPM): empirical evidences from the manufacturing sector","authors":"Iara Franchi Arromba, R. Anholon, I. Rampasso, Dirceu Silva, O. Quelhas, L. A. Santa-Eulalia, W. Leal Filho","doi":"10.1590/1806-9649-2021v28e5300","DOIUrl":"https://doi.org/10.1590/1806-9649-2021v28e5300","url":null,"abstract":"Abstract: This article analyses the difficulties observed in adopting the Total Productive Maintenance (TPM) program in production systems. The research strategies used for this purpose consisted of a literature review, a panel of experts and a survey with professionals working in manufacturing companies. Altogether, 69 market professionals took part in the survey and the collected data was analyzed through the PLS-SEM technique. Results indicate that there is a causal relationship between difficulties associated with the planning phase of a TPM program and issues associated with its implementation. This is an original research and the results are valuable to business professionals desiring to properly implement TPM, as well for researchers interested in the mechanics of total productive maintenance system’s adoption.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":"235 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67159927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-05-31DOI: 10.1590/1806-9649-2020V28E5115
Bruna Caffaro Boccaletti, L. C. B. B. Mello, Isadora de Paula Bastos
Abstract: The current economy has demanded from organizations greater quality in their operations, which makes necessary to avoid non-compliance of processes that generate extra expenses, efforts and influence satisfaction of clients. This article aims to understand main causes of products returns from market in a cosmetics company. Based on literature review and application of a quality tool, FMEA (Failure Modes and Effects Analysis), in the case study, solutions and their effects on the organization are evaluated. After studies, new solutions and suggestions were proposed to reduce organization's post-sale reverse logistics.
{"title":"Principal causes and challenges for reducing product returns: applying FMEA in a case study","authors":"Bruna Caffaro Boccaletti, L. C. B. B. Mello, Isadora de Paula Bastos","doi":"10.1590/1806-9649-2020V28E5115","DOIUrl":"https://doi.org/10.1590/1806-9649-2020V28E5115","url":null,"abstract":"Abstract: The current economy has demanded from organizations greater quality in their operations, which makes necessary to avoid non-compliance of processes that generate extra expenses, efforts and influence satisfaction of clients. This article aims to understand main causes of products returns from market in a cosmetics company. Based on literature review and application of a quality tool, FMEA (Failure Modes and Effects Analysis), in the case study, solutions and their effects on the organization are evaluated. After studies, new solutions and suggestions were proposed to reduce organization's post-sale reverse logistics.","PeriodicalId":35415,"journal":{"name":"Gestao e Producao","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67159461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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