Gestão & Produçãohttps://www.scielo.br/journal/gp/feed/2024-02-02T20:04:47.582000ZVol. 31 - 2024WerkzeugEnergy consumption optimization in a printing company10.1590/1806-9649-2024v31e17232024-02-02T20:04:47.582000Z2020-08-09T06:48:34.542000ZMenezes, Lucas Farias deBalbo, Antonio RobertoCherri, Adriana CristinaPoltroniere, Sônia CristinaGhidini, Carla Taviane Lucke da SilvaSoler, Edilaine Martins
<em>Menezes, Lucas Farias De</em>;
<em>Balbo, Antonio Roberto</em>;
<em>Cherri, Adriana Cristina</em>;
<em>Poltroniere, Sônia Cristina</em>;
<em>Ghidini, Carla Taviane Lucke Da Silva</em>;
<em>Soler, Edilaine Martins</em>;
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Abstract In this study, an integer linear programming model is proposed to support the Production Planning, Scheduling and Control sector of a printing company. The model considers two objective functions to deal with the problem, the first is to minimize the costs with electric energy consumption and the second is to minimize the machine operating time. Both objectives are related to the assignment to different sets of printing and finishing machines for the manufacture of the ordered items. Operating constraints at the factory are considered, such as the setup time limits, how the machine is operated, the types of printed item, the production capacity and the demand. In addition, a heuristic was developed to support the production schedule, allowing adjustments in the different production shifts but respecting the assignments obtained using the mathematical model. Computational tests were performed with a set of data provided by a printing company located in the state of São Paulo.Family control and corporate performance: the role of independent commissioners in reducing agency problems10.1590/1806-9649-2024v31e79232024-02-02T20:04:47.582000Z2020-08-09T06:48:34.542000ZJafar, RosmiatiBasuki, BasukiWindijarto, WindijartoSetiawan, Rahmat
<em>Jafar, Rosmiati</em>;
<em>Basuki, Basuki</em>;
<em>Windijarto, Windijarto</em>;
<em>Setiawan, Rahmat</em>;
<br/><br/>
Abstract This study examines the influence of family control on firm performance, taking into consideration the moderating variable of the proportion of independent commissioners. The sample for this research consists of manufacturing sector companies listed on the Indonesia Stock Exchange (IDX) for the period 2012-2018, with 477 observations. Ordinary Least Squares (OLS) regression analysis and Moderated Regression Analysis (MRA) techniques were employed to test the hypotheses. The findings of this research indicate that family control has a significant negative impact on firm performance. Additionally, it was found that the proportion of independent commissioners significantly weakens the negative influence of family control on firm performance.