International Journal of Professional Business Review
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ANALYSIS OF AN INVENTORY MODEL FOR TIME-DEPENDENT LINEAR DEMAND RATE THREE LEVELS OF PRODUCTION WITH SHORTAGE
Get PDFObjective: The objective of this study is to investigate the continuous-production inventory problem for a single product at a three-level facing a constant deterioration rate. It is anticipated that the customer will make renewal arrangements in accordance with the established and extensively utilized order-up-to policy, and may place orders from two providers with differing prices and levels of consistency.
Theoretical Framework: In this study demand is a linear function of time, and the deterioration rate is persistent. In this model, the shortage is allowed, and partial backlogging. It is expected that the backlog rate is influenced by how long it takes to get the next replenishment. It involves aspects from various areas of scientific knowledge to understand the different perceptions contained in the scientific literature on the phenomenon of Industry 4.0.
Method: The algorithms for this model have been developed in Mathematica Software 9.0. We examine the effects of several difficulty criteria on the best options regarding manufacturing time and replenishment at the store using analytical analysis.
Results and Discussion: Thus, our model offers a novel management insight that aids in achieving the ideal profit level for a production system or business. In reality, we obtain a promising outcome from the numerical case. To compare various solutions, we also carry out very comprehensive numerical experiments.
Research Implications: This research aims to detect the best course of action for reducing overall inventory costs and increasing overall income. We also verified that the total cost and commonly optimal time used to interrupt geometric production systems could be analyzed with a constant production model. This approach is particularly relevant for organizations seeking to improve operational efficiency and customer satisfaction through better risk management.
Originality/Value: This study contributes to our understanding of how and with whom to collaborate by highlighting the relationships among inventory management, innovation performance, and logistics performance. The value of the study is the contribution it makes to the literature on the cost analysis issues. Therefore, the article can be of benefit to the scientific community with an interest in the study of the subject
O O GERENCIAMENTO EFICIENTE DE RESÍDUOS NA UNIDADE DE TERAPIA INTENSIVA (UTI)
No full textObjective: This article intent to analyze the waste management process in the ICU to identify best practices and potential areas for improvement to ensure the safety of patients, healthcare professionals, and the environment.
Theoretical Framework: Regardless of representing a smaller fraction of the total volume of waste produced daily, HCW poses a significant risk to public health. As a result, legal instruments and policies have been created to harmonize solid waste management in Brazil.
Method: Literature review and direct observation of activities related to waste management in the ICU, with detailed recording of practices performed by healthcare professionals.
Results and Discussion: The obtained results revealed that the proper and responsible management of hospital waste from the ICU was in compliance with legal requirements. Waste classification was effectively carried out, which is essential for the management process of these materials.
Research Implications: Providing insights into optimizing waste management in the ICU, improving patient safety and hospital environment, and contributing to the development of more effective guidelines and protocols.
Originality/Value: The originality and value of this study lie in the detailed and specific analysis of waste management in the ICU, offering new perspectives and strategies to enhance waste management practices in healthcare services.Los Residuos de Servicios de Salud (RSS) mal gestionados representan un grave riesgo para la salud pública y el medio ambiente.
Objetivo: El objetivo del artículo fue analizar el proceso de gestión de residuos en la UTI con el fin de identificar buenas prácticas y posibles áreas de mejora para garantizar la seguridad de los pacientes, los profesionales de la salud y el medio ambiente.
Marco Teórico: A pesar de representar una fracción menor del volumen total de residuos producidos diariamente, los RSS constituyen un riesgo significativo para la salud de la población, por lo tanto, se han creado instrumentos legales y políticas con el objetivo de armonizar la gestión de residuos sólidos en Brasil.
Método: Revisión de literatura y observación directa de las actividades relacionadas con la gestión de residuos en la UTI y registro detallado de las prácticas realizadas por los profesionales de la salud.
Resultados y Discusión: Los resultados obtenidos revelaron que la gestión adecuada y responsable de los residuos hospitalarios provenientes de la UTI estaba en conformidad con las exigencias de las legislaciones. La clasificación de los residuos se llevó a cabo de manera eficaz, lo que resulta fundamental para el proceso de gestión de estos materiales.
Implicaciones de la Investigación: Proporcionar información sobre la optimización de la gestión de residuos en la UTI, mejorando la seguridad de los pacientes y del ambiente hospitalario, además de contribuir al desarrollo de directrices y protocolos más eficaces.
Originalidad/Valor: La originalidad y el valor de este estudio residen en el análisis detallado y específico de la gestión de residuos en la UTI, proporcionando nuevas perspectivas y estrategias para mejorar las prácticas de gestión de residuos en servicios de salud.Os Resíduos de Serviços de Saúde (RSS) mal gerenciados, representam um sério risco para a saúde pública e o meio ambiente.
Objetivo: O objetivo do artigo foi analisar o processo de gestão de resíduos na UTI com o intuito de identificar boas práticas e possíveis áreas de melhoria para garantir a segurança dos pacientes, dos profissionais de saúde e do meio ambiente.
Referencial Teórico: Apesar de representarem uma fração menor do volume total de resíduos produzidos diariamente, os RSS constituem risco significativo para a saúde da população, sendo assim, foi criado instrumentos legais e políticas com o intuito de harmonizar a gestão de resíduos sólidos no Brasil.
Método: Revisão da literatura e observação direta às atividades relacionadas ao gerenciamento de resíduos na UTI e registradas detalhadamente as práticas realizadas pelos profissionais de saúde.
Resultados e Discussão: Os resultados obtidos revelaram que a gestão adequada e responsável dos resíduos hospitalares provenientes da UTI estavam em conformidade com exigências das legislações. A classificação dos resíduos foi realizada de maneira eficaz, o que se mostra fundamental para o processo de gerenciamento desses materiais.
Implicações da Pesquisa: Fornecer insights sobre otimização do gerenciamento de resíduos na UTI, melhorando a segurança dos pacientes e do ambiente hospitalar, além de contribuir para o desenvolvimento de diretrizes e protocolos mais eficazes.
Originalidade/Valor: A originalidade e valor deste estudo residem na análise detalhada e específica do gerenciamento de resíduos na UTI, proporcionando novas perspectivas e estratégias para aprimorar as práticas de gestão de resíduos em serviços de saúde
THE EFFECT OF WORKPLACE INCIVILITY, PERCEIVED SUPERVISOR SUPPORT, JOB SATISFACTION ON ORGANIZATIONAL IDENTIFICATION THAT RESULTS EMPLOYEE PERFORMANCE AND TURNOVER INTENTION
Get PDFPurpose: This study analyses the influence of Workplace Incivility, Perceived Supervisor Support, Job Satisfaction on Organizational Identification and its implications for Employee Performance and Turnover Intention.
Theoretical Framework: Workplace incivility is related to a range of work attitudes, stress indicators, and behaviours, both for the person experiencing incivility as well as for those engaging in uncivilised behaviour. The incivility experienced is closely associated with low job satisfaction and sub-optimal employee performance, high levels of stress and burnout, and a strong desire to leave the job. Perceived supervisor support refers to the perception among employees of how much their supervisors value their contributions and care about their well-being.
Design/Methodology/Approach: Determination of the sample using purposive sampling method involving employees who work in the renewable energy industry in Jakarta as many as 210 respondents. Analysis tool is Structural Equation Modeling (SEM) using AMOS version 22.0.
Findings: It was found that Workplace Incivility does not affect Organizational Identification but, Perceived Supervisor Support and Job Satisfaction have an influence on Organizational Identification. The implication of Organizational Identification has an influence on Employee Performance and Turnover Intention, but Employee Performance does not affect the Turnover Intention of employees working in renewable energy in Jakarta.
Research, Practical & Social Implications: From the results of this study, management can get used to the culture that superiors should pay more attention to the performance of employees. In addition, management can consider that employees are part of the company, with this, employees will be more confident in their identity in the company which will increase Organizational Identification. High Organizational Identification is proven to improve Employee Performance and reduce Turnover Intention of employees.
Originality/Value: The addition of turnover intention variables is the difference between this research and the previous one. The research was conducted in renewable energy company in Jakarta, Indonesia. This is the uniqueness and originality of this research.Objetivo: Este estudo analisa a influência da Incivilidade no Local de Trabalho, do Apoio Apercebido do Supervisor, da Satisfação no Trabalho na Identificação Organizacional e as suas implicações no Desempenho dos Colaboradores e na Intenção de Turnover.
Enquadramento teórico: A incivilidade no local de trabalho está relacionada com uma série de atitudes no trabalho, indicadores de stress e comportamentos, tanto para a pessoa que sofre a incivilidade como para aqueles que se envolvem em comportamentos incivilizados. A incivilidade experimentada está estreitamente associada a uma baixa satisfação no trabalho e a um desempenho abaixo do ideal por parte dos trabalhadores, a elevados níveis de stress e de esgotamento e a um forte desejo de abandonar o emprego. A perceção do apoio do supervisor refere-se à perceção que os trabalhadores têm de quanto os seus supervisores valorizam as suas contribuições e se preocupam com o seu bem-estar.
Conceção/Metodologia/Abordagem: Determinação da amostra utilizando o método de amostragem intencional, envolvendo empregados que trabalham na indústria das energias renováveis em Jacarta, num total de 210 inquiridos. A ferramenta de análise é a Modelação de Equações Estruturais (SEM) utilizando o AMOS versão 22.0.
Conclusões: Verificou-se que a Incivilidade no Local de Trabalho não afecta a Identificação Organizacional, mas que o Apoio Percebido do Supervisor e a Satisfação no Trabalho têm influência na Identificação Organizacional. A implicação da Identificação Organizacional tem influência no Desempenho dos Funcionários e na Intenção de Rotatividade, mas o Desempenho dos Funcionários não afecta a Intenção de Rotatividade dos funcionários que trabalham na área das energias renováveis em Jacarta.
Implicações para a investigação, práticas e sociais: A partir dos resultados deste estudo, a gerência pode se acostumar com a cultura de que os superiores devem dar mais atenção ao desempenho dos funcionários. Para além disso, a gestão pode considerar que os empregados fazem parte da empresa, com isto, os empregados estarão mais confiantes na sua identidade na empresa, o que aumentará a Identificação Organizacional. Está provado que uma elevada Identificação Organizacional melhora o Desempenho dos Colaboradores e reduz a Intenção de Turnover dos colaboradores.
Originalidade/Valor: A adição de variáveis de intenção de rotação é a diferença entre este estudo e o anterior. A investigação foi realizada numa nova empresa de energia em Jacarta, na Indonésia. Esta é a singularidade e a originalidade desta investigação.
Palavras-chave:
Incivilidade no local de trabalho, Apoio percebido do supervisor, Satisfação no trabalho, Identificação organizacional, Desempenho do trabalhador, Intenção de rotatividade.Propósito: Este estudio analiza la influencia de la Incivilidad en el Lugar de Trabajo, el Apoyo Percibido del Supervisor, la Satisfacción Laboral en la Identificación Organizacional y sus implicaciones en el Desempeño del Empleado y la Intención de Rotación.
Marco teórico: La incivilidad en el lugar de trabajo está relacionada con una serie de actitudes laborales, indicadores de estrés y comportamientos, tanto para la persona que experimenta la incivilidad como para quienes participan en el comportamiento incívico. La incivilidad experimentada está estrechamente asociada con una baja satisfacción laboral y un rendimiento inferior al óptimo de los empleados, altos niveles de estrés y agotamiento, y un fuerte deseo de abandonar el trabajo. El apoyo percibido del supervisor se refiere a la percepción entre los empleados de hasta qué punto sus supervisores valoran sus contribuciones y se preocupan por su bienestar.
Diseño/Metodología/Enfoque: Determinación de la muestra mediante un método de muestreo intencional en el que participaron empleados que trabajan en el sector de las energías renovables en Yakarta, hasta un total de 210 encuestados. La herramienta de análisis es el Modelo de Ecuaciones Estructurales (SEM) utilizando AMOS versión 22.0.
Resultados: Se constató que la incivilidad en el lugar de trabajo no afecta a la identificación organizativa, pero el apoyo percibido del supervisor y la satisfacción en el trabajo influyen en la identificación organizativa. La implicación de la identificación organizativa influye en el rendimiento de los empleados y en la intención de cambiar de empresa, pero el rendimiento de los empleados no afecta a la intención de cambiar de empresa de los empleados que trabajan en el sector de las energías renovables en Yakarta.
Investigación, implicaciones prácticas y sociales: A partir de los resultados de este estudio, la dirección puede acostumbrarse a la cultura de que los superiores deben prestar más atención al rendimiento de los empleados. Además, la dirección puede considerar que los empleados forman parte de la empresa, con lo que los empleados tendrán más confianza en su identidad en la empresa, lo que aumentará la Identificación Organizativa. Está demostrado que una alta identificación organizativa mejora el rendimiento de los empleados y reduce su intención de cambiar de empresa.
Originalidad/Valor: La adición de variables de intención de rotación es la diferencia entre esta investigación y la anterior. La investigación se llevó a cabo en una nueva empresa energética de Yakarta (Indonesia). Esta es la singularidad y originalidad de esta investigación
A impressão digital do carbono e o valor econômico da deterioração ambiental, pelo deslocamento em direção as áreas protegidas no Equador.
Get PDFObjective: Generate environmental awareness and economic valuation of the pollution caused by the movement of people to the protected areas (PA) of Ecuador from the city of Ambato.
Theoretical Framework: The perspectives of alternative development and sustainable development models provide the theoretical framework that supports this work and allows us to envision alternatives for solving environmental conflicts such as pollution and environmental deterioration of the country's protected areas.
Method: The methodology used was built based on environmental assessment methods. Thus, first, the country's protected areas were identified, and the distances from Ambato to the PAs in kilometers were calculated. Then, the fuel used for the trip was calculated, as well as the fuel consumption of the round trip, which helped to obtain the carbon footprint generated by the transfer and determine the environmental cost of the carbon dioxide emission.
Results and Discussion: The investigation results determined that the cost of environmental contamination when visiting the 47 Ecuadorian protected areas was $395,391.37.
Research Implications: However, the contribution of this study focuses on providing evidence that conserving nature is more profitable than exploiting it.
Originality/Value: The study demonstrates the need to change transportation for a sustainable mobility system to achieve social, economic, and environmental balance.Este estudio tiene como objetivo generar conciencia ambiental y valoración económica de la contaminación provocada por el desplazamiento de personas hacia las áreas protegidas (AP) del Ecuador desde la ciudad de Ambato. Para estos efectos se analizó la contaminación, el deterioro ambiental, las áreas protegidas del país y las diferentes normativas que controlan estos lugares. Al generar la metodología; Primero, se identificaron las áreas protegidas del país y se calcularon las distancias desde Ambato a las AP en kilómetros. Luego, se calculó el combustible utilizado para el viaje, y el consumo de combustible del viaje de ida y vuelta, el mismo que ayudó a obtener la huella de carbono generada por el traslado y determinar el costo ambiental de la emisión de dióxido de carbono. Los resultados de la investigación determinaron que el costo de contaminación ambiental al visitar las 47 áreas protegidas ecuatorianas fue de 395.391,37 dólares, sin embargo, conservar la naturaleza es más rentable que explotarla, el estudio demuestra la necesidad de cambiar el transporte por un sistema de movilidad sostenible para lograr un beneficio social, económico y equilibrio ambiental.Resumen Este estudio tiene como objetivo generar conciencia ambiental y evaluación económica de la contaminación provocada por el desplazamiento de personas en dirección a las áreas protegidas (AP) del Ecuador de la ciudad de Ambato. Para estos efectos se analiza la contaminación o el deterioro ambiental de las áreas protegidas del país y las diferentes regulaciones que controlan esos lugares. Ao gerar a metodologia primeiro se identificaram as areas protegidas do pais e se vai calcular as distâncias de Ambato a AP quilômetros. Entonces, se calcula la combustión del viaje de ida y vuelta, o mesmo que ayuda a obtener la impresión digital de carbono generado por la transferencia, y determina el cuidado ambiental de la emisión de dióxido de carbono. Los resultados de la investigación determinan que el cuidado de la contaminación ambiental se realiza al visitar 47 áreas protegidas ecuatorianas por 395. 391, 37 dólares, por lo tanto, conservar la naturaleza y ser más lucrativo al explorarlo, el estudio demuestra la necesidad de mudarse o transportarse. Un sistema de movilidad sostenible para conseguir un beneficio social, económico y un equilibrio ambiental.
 
THE IMPACT OF E-COMMERCE AS A MEDIATOR ON CONSUMER TRUST IN INDEPENDENT SMALL AND MEDIUM LEBANESE RETAIL ENTERPRISES
Get PDFObjective: The objective of this study is to investigate the effect of consumer trust on small and medium enterprises (SMEs) in the retail industry, with the aim of proposing a model for electronic commerce as a mediating factor between retail SMEs and consumer trust.
Theoretical Framework: In this topic, the main concepts and theories that underpin the research are presented. The Technology Acceptance Model (TAM), Trust Theory, and the Diffusion of Innovations Theory stand out, providing a solid basis for understanding the context of the investigation.
Method: The methodology adopted for this research comprises a mixed-methods study design, including a quantitative approache. Participants included SME owners and consumers. Data collection was carried out through surveys, utilizing questionnaires to gather comprehensive insights.
Results and Discussion: The results obtained revealed that e-commerce adoption significantly boosts consumer trust in SMEs, providing them with a competitive edge in the market. In the discussion section, these results are contextualized in light of the theoretical framework, highlighting the implications and relationships identified noting the limitations of the study, such as sample size and scope.
Research Implications: The practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the field of retail management and e-commerce. These implications could encompass strategic planning for SMEs, consumer behavior analysis, and digital marketing strategies.
Originality/Value: This study contributes to the literature by proposing a new model that positions electronic commerce as a mediating factor between retail SMEs and consumer trust. The relevance and value of this research are evidenced by the potential impact on enhancing consumer trust and competitive advantage in the retail industry, particularly in the post-pandemic era
STRATEGIC PLANNING GUIDELINES FOR SUCCESS IN INDUSTRIAL ENTERPRISES IN THE DIGITAL ERA
Get PDFObjective: The objective of this research is to examine the organizational structure and operational characteristics of industrial businesses, investigate components of strategic planning guidelines, and develop a structural equation model, with the aim of achieving sustainable success for industrial enterprises.
Theoretical Framework: Content analysis method is a theoretical framework used to examine the presence and concepts of qualitative data. The framework is used to summarize findings and recommendations, from in-depth interviews and focus group discussions, into frequency values. Survey research framework is a structured approach that guides design, implementation, and analysis of surveys to gather data from targeted populations. The framework is used in quantitative research component, to collect and analyze data using descriptive and inferential statistics
Method: Qualitative research involved conducting in-depth interviews with 9 experts and facilitating focus group discussions with 11 qualified individuals. Quantitative research is conducted through surveys to 500 industrial business executives, utilizing descriptive statistics, correlation analysis, and multivariate statistics.
Results and Discussion: Findings from developed structural equation model indicated good alignment with observational data, with a Chi-square value of 0.094, Chi-square ratio of 1.115, goodness-of-fit index of 0.954, and a root mean square error of approximation of 0.015.
Research Implications: Strategic planning is significant in business operations. Well-formulated business strategies will impact managerial efficiency, creating opportunities and enhancing a competitive advantage for industrial enterprises.
Originality/Value: Findings revealed four significant factors contributing to success in industrial enterprises, listed in descending order of importance: 1) adaptive skills, 2) digital technology, 3) collaboration, and 4) organizational support
ECONOMIC OF CYBER-SECURITY AND SOCIETY DATABASES: PROTECTING THE DIGITAL ECOSYSTEM FROM CYBER-ATTACKS
Get PDFObjective: The objective of this study is to explore the role of investment in cybersecurity and the enhancement of the digital ecosystem.
Theoretical Framework: In this topic, the main concepts and theories that under in the research are presented. Therefore, the article sheds light on the importance of taking effective measures to preserve cybersecurity and promote the digital environment. The analysis focuses on three key pillars: the digital ecosystem, the economic impact of cyberattacks, and the role of investment in strengthening cybersecurity.
Method: The method of this study is data descriptive from Statista 2023 datatbases. We have relied on this method because it is suitable for analyzing available data and statistics regarding cyberthreats and their impact on the economy and society. This method has enabled us to analyze results of reports and studies regarding cybersecurity and reach the most significant challenges facing institutions in enhancing safety and digital growth.
Results and Discussion: The results obtained reveal several key findings. Most significantly, the study finds that investment in cybersecurity significantly enhances the ability to counter growing digital threats, such as electronic piracy and malware attacks.
Research Implications: The practical and theoretical implications of this research are discussed, providing insights into how the results can be applied or influence practices in the field of the cybersecurity. These implications could encompass Firms, Organizations and individuals in our digital age (AI).
Orginality/Value: The originality value of this research study suggested that the investment in cypersecurity can significantly contribute to building a sustainable economy, promoting safe practices in the digital environment, and creating new job opportunities.La ciberseguridad es uno de los desafíos más importantes que enfrentan las organizaciones y las personas en nuestra era digital.
Objetivo: El objetivo de este estudio es explorar el papel de la inversión en ciberseguridad y la mejora del ecosistema digital.
Marco Teórico: En este tema se presentan los principales conceptos y teorías que se abordan en la investigación. Por ello, el artículo arroja luz sobre la importancia de tomar medidas efectivas para preservar la ciberseguridad y promover el entorno digital. El análisis se centra en tres pilares clave: el ecosistema digital, el impacto económico de los ciberataques y el papel de la inversión en el fortalecimiento de la ciberseguridad.
Método: El método de este estudio es descriptivo de datos de las bases de datos de Statista 2023. Hemos confiado en este método porque es adecuado para analizar datos y estadísticas disponibles sobre las ciberamenazas y su impacto en la economía y la sociedad. Este método nos ha permitido analizar resultados de informes y estudios sobre ciberseguridad y llegar a los desafíos más importantes que enfrentan las instituciones para mejorar la seguridad y el crecimiento digital.
Resultados y Discusión: Los resultados obtenidos revelan varios hallazgos clave. Lo más significativo es que el estudio encuentra que la inversión en ciberseguridad mejora significativamente la capacidad de contrarrestar las crecientes amenazas digitales, como la piratería electrónica y los ataques de malware.
Implicaciones de la investigación: Se discuten las implicaciones prácticas y teóricas de esta investigación, proporcionando información sobre cómo los resultados pueden aplicarse o influir en las prácticas en el campo de la ciberseguridad. Estas implicaciones podrían abarcar empresas, organizaciones e individuos en nuestra era digital (IA).
Orginalidad/Valor: El valor de originalidad de este estudio de investigación sugirió que la inversión en ciberseguridad puede contribuir significativamente a construir una economía sostenible, promover prácticas seguras en el entorno digital y crear nuevas oportunidades laborales.
Palabras clave: Entre 4 y 6 palabras clave, separadas por comas. EJEMPLO: Ácaro Rojo de la Palma, ResiduosAgroindustriales, Manejo Alternativo, Passiflora Edulis.A cibersegurança é um dos desafios mais significativos que as organizações e os indivíduos enfrentam na nossa era digital.
Objectivo: O objectivo deste estudo é explorar o papel do investimento na cibersegurança e na melhoria do ecossistema digital.
Referencial Teórico: Neste tópico são apresentados os principais conceitos e teorias que estão na ordem do dia na investigação. Por conseguinte, o artigo esclarece a importância de tomar medidas eficazes para preservar a cibersegurança e promover o ambiente digital. A análise centra-se em três pilares principais: o ecossistema digital, o impacto económico dos ciberataques e o papel do investimento no reforço da cibersegurança.
Método: O método deste estudo são dados descritivos das bases de dados Statista 2023. Confiámos neste método porque é adequado para analisar os dados e estatísticas disponíveis sobre as ciberameaças e o seu impacto na economia e na sociedade. Este método permitiu-nos analisar resultados de relatórios e estudos sobre cibersegurança e alcançar os desafios mais significativos que as instituições enfrentam no reforço da segurança e do crescimento digital.
Resultados e Discussão: Os resultados obtidos revelam várias conclusões importantes. Mais significativamente, o estudo conclui que o investimento em cibersegurança aumenta significativamente a capacidade de combater as crescentes ameaças digitais, como a pirataria eletrónica e os ataques de malware.
Implicações da investigação: As implicações práticas e teóricas desta investigação são discutidas, fornecendo insights sobre como os resultados podem ser aplicados ou influenciar as práticas no campo da cibersegurança. Estas implicações podem abranger empresas, organizações e indivíduos na nossa era digital (IA).
Originalidade/Valor: O valor de originalidade deste estudo sugeriu que o investimento em cibersegurança pode contribuir significativamente para a construção de uma economia sustentável, promovendo práticas seguras no ambiente digital e criando novas oportunidades de emprego
Previsão da tendência diária do Bitcoin por meio de análise de série temporal sob a abordagem Box-Jenkins
No full textObjective: Identify and analyze a model that forecasts the daily trend of the electronic currency Bitcoin through time series analysis under the Box-Jenkins approach.
Theoretical Framework: In recent years, electronic currencies such as Bitcoin have been generated as an alternative to traditional forms of payment. Large online stores facilitate the use of Bitcoin. A characteristic of Bitcoin, its value fluctuates daily. This presents investors with the need to analyze the behavior of Bitcoin using statistical techniques.
Method: The statistical methodology of time series analysis under the Box-Jenkins approach manages to model the different components of a historical series, using the ARIMA(p,d,q) models. This methodology predicts the price of Bitcoin and its upward or downward trends. The open statistical software R is used.
Results and Discussion: A sample is analyzed from the date 2023-01-01 to the date 2023-08-02. The variance of the series is stabilized to proceed with the modeling of the daily minimum price. After specifying various models with autocorrelation and partial autocorrelation functions, the model that best explains the behavior was determined as ARIMA(4,1,2), performing the corresponding statistical tests and analyzing the residuals. With this model, ten forecasts were calculated with their respective prediction intervals. Contrasting with the corresponding observed values, all ten are within the prediction intervals and seven predict the trend of the series well.
Research Implications: Contributes to the analysis of the behavior of Bitcoin with the statistical methodology of time series analysis.
Originality/Value: Modeling Bitcoin behavior with the Box-Jenkins approach.Objetivo. Identificar y analizar un modelo que pronostique la tendencia diaria de la moneda electrónica Bitcoin mediante análisis de series de tiempo bajo el enfoque de Box-Jenkins.
Marco teórico: En los últimos años se han generados monedas electrónicas como el Bitcoin, como una alternativa a las formas de pago tradicionales. Grandes tiendas online facilitan el uso del Bitcoin. Una característica del Bitcoin, su valor fluctúa de manera diaria. Esto plantea a los inversionistas la necesidad de analizar el comportamiento del Bitcoin mediante técnicas estadísticas.
Método. La metodología estadística de análisis de series de tiempo bajo el enfoque de Box-Jenkins, logra modelar las distintas componentes de una serie histórica, mediante los modelos ARIMA(p,d,q). Esta metodología pronosticar el precio de Bitcoin y sus tendencias hacía la alza o baja. Se utiliza el software estadístico abierto R.
Resultados y discusión. Se analiza una muestra de la fecha 2023-01-01 a la fecha 2023-08-02. Se estabiliza la varianza de la serie, para proceder a la modelación del precio mínimo diario. Después de especificar diversos modelos con las funciones de autocorrelación y autocorrelación parcial, se determino el modelo que mejor explica el comportamiento como el ARIMA(4,1,2), realizando las pruebas estadísticas correspondientes y el análisis de los residuales. Con este modelo se calcularon diez pronósticos con sus respectivos intervalos de predicción. Contrastando con los valores observados correspondientes, los diez están dentro de los intervalos de predicción y siete pronostican bien la tendencia de la serie.
Mirar. Identificar e analisar um modelo que prevê a tendência diária da moeda eletrônica Bitcoin por meio de análise de séries temporais sob a abordagem Box-Jenkins.
Referencial teórico: Nos últimos anos, moedas eletrônicas como o Bitcoin foram geradas como alternativa às formas tradicionais de pagamento. Grandes lojas online facilitam o uso do Bitcoin. Uma característica do Bitcoin é que seu valor flutua diariamente. Isto apresenta aos investidores a necessidade de analisar o comportamento do Bitcoin utilizando técnicas estatísticas.
Método. A metodologia estatística de análise de séries temporais sob a abordagem Box-Jenkins consegue modelar os diferentes componentes de uma série histórica, utilizando os modelos ARIMA(p,d,q). Esta metodologia prevê o preço do Bitcoin e suas tendências ascendentes ou descendentes. O software estatístico aberto R é usado.
Resultados e discussão. Uma amostra é analisada a partir da data 2023-01-01 até a data 2023-08-02. A variância da série é estabilizada para prosseguir com a modelagem do preço mínimo diário. Após especificar vários modelos com funções de autocorrelação e autocorrelação parcial, o modelo que melhor explica o comportamento foi determinado como ARIMA(4,1,2), realizando os testes estatísticos correspondentes e analisando os resíduos. Com este modelo foram calculadas dez previsões com seus respectivos intervalos de predição. Contrastando com os valores observados correspondentes, todos os dez estão dentro dos intervalos de previsão e sete predizem bem a tendência da série.
 
THE MODERATING ROLE OF FIRM TRANSPARENCY IN INCREASING THE IMPACT OF IFRS ADOPTION ON THE FINANCIAL STATEMENTS COMPARABILITY: A CASE STUDY ON NORTH AFRICAN COUNTRIES
Get PDFObjective: This study investigates how firm transparency affects the relationship between adopting International Financial Reporting Standards (IFRS) and the comparability of financial statements in North African countries.
Theoretical Framework: The research is grounded in agency theory, suggesting increased transparency reduces information asymmetry between firms and stakeholders.
Method: The study employs a quantitative research design, using data from publicly traded companies in North Africa. A multiple PLS-SEM analysis is conducted to examine the interaction between firm transparency and IFRS adoption, and their combined effect on financial statement comparability. Data sources include financial reports and transparency indices over five years.
Results and Discussion: The findings indicate that while IFRS adoption alone improves financial statement comparability, the effect is significantly stronger for firms with higher levels of transparency. Transparent firms benefit more from IFRS adoption, as stakeholders find it easier to compare financial statements across different firms. The study highlights that transparency acts as a crucial moderating variable, amplifying the positive impacts of IFRS on comparability.
Research Implications: The results underscore the importance of enhancing firm transparency in conjunction with adopting IFRS to maximize financial reporting benefits. Policymakers and regulators in North African countries should focus on promoting transparency to support more effective financial reporting and decision-making.
Originality/Value: This research contributes to the limited literature on IFRS adoption in developing regions, particularly in North Africa. It provides new insights into how transparency influences the effectiveness of international accounting standards, offering valuable implications for both researchers and practitioners
THE EFFECT OF STRATEGIC FLEXIBILITY, STRATEGIC INNOVATION, JOB SATISFACTION AND EMPLOYEE PERFORMANCE: STUDY ON SMALL AND MEDIUM CLOTHING INDUSTRY IN EAST JAVA PROVINCE
Get PDFObjective: This study investigates the relationships between strategic flexibility, strategic innovation, job satisfaction, and employee performance in Small and Medium Enterprises (SMEs) within East Java’s clothing industry. The research specifically aims to examine the mediating role of job satisfaction in these relationships.
Theoretical Framework: The study is grounded in organizational behavior and strategic management theories, proposing that strategic flexibility and innovation positively influence job satisfaction, which in turn enhances employee performance. Job satisfaction is posited as a mediator that impacts the effect of strategic flexibility and innovation on employee outcomes.
Method: The research employs an explanatory design with Partial Least Squares (PLS) analysis to test hypotheses and establish causal relationships. Data were collected from 160 employees in East Java’s clothing sector through stratified random sampling. A Likert scale-based questionnaire was utilized to measure variables, and SmartPLS 3.0 was used for data analysis.
Results and Discussion: The findings indicate that strategic flexibility significantly enhances both job satisfaction and employee performance. Strategic innovation impacts employee performance indirectly by improving job satisfaction. The mediation analysis reveals that job satisfaction fully mediates the relationship between strategic innovation and employee performance, and partially mediates the effect of strategic flexibility on performance.
Research Implications: The study underscores the effectiveness of PLS analysis in exploring these relationships and offers insights into how SME managers in East Java can improve employee outcomes by focusing on strategic flexibility, innovation, and job satisfaction.
Originality/Value: This research contributes to the literature by highlighting the mediating role of job satisfaction in the relationship between strategic management practices and employee performance. The findings provide practical recommendations for SME managers to enhance performance by prioritizing employee satisfaction and adaptability