Search results

1 – 10 of 105
Article
Publication date: 13 February 2024

José Nogueira da Mata Filho, Antonio Celio Pereira de Mesquita, Fernando Teixeira Mendes Abrahão and Guilherme C. Rocha

This paper aims to explore the optimization process involved in the aircraft maintenance allocation and packing problem. The aircraft industry misses a part of the optimization…

Abstract

Purpose

This paper aims to explore the optimization process involved in the aircraft maintenance allocation and packing problem. The aircraft industry misses a part of the optimization potential while developing maintenance plans. This research provides the modeling foundation for the missing part considering the failure behavior of components, costs involved with all maintenance tasks and opportunity costs.

Design/methodology/approach

The study models the cost-effectiveness of support against the availability to come up with an optimization problem. The mathematical problem was solved with an exact algorithm. Experiments were performed with real field and synthetically generated data, to validate the correctness of the model and its potential to provide more accurate and better engineered maintenance plans.

Findings

The solution procedure provided excellent results by enhancing the overall arrangement of the tasks, resulting in higher availability rates and a substantial decrease in total maintenance costs. In terms of situational awareness, it provides the user with the flexibility to better manage resource constraints while still achieving optimal results.

Originality/value

This is an innovative research providing a state-of-the-art mathematical model and an algorithm for efficiently solving a task allocation and packing problem by incorporating components’ due flight time, failure probability, task relationships, smart allocation of common preparation tasks, operational profile and resource limitations.

Details

Journal of Quality in Maintenance Engineering, vol. 30 no. 1
Type: Research Article
ISSN: 1355-2511

Keywords

Open Access
Article
Publication date: 28 May 2024

Jose Matas, Francisco Javier Llorens-Montes and Nieves Perez

The objective of this study is to examine how emotions play a role in the firm’s reaction to disruptions in the supply chain. Drawing on the upper echelons theory, we evaluate…

Abstract

Purpose

The objective of this study is to examine how emotions play a role in the firm’s reaction to disruptions in the supply chain. Drawing on the upper echelons theory, we evaluate whether managers’ perception of collective emotions (CEs) in the supply environment affects the execution of specific organisational responses (bridging and buffering) to disruptive events. Furthermore, we investigate to what extent companies' own capabilities, such as supply chain resilience, influence this relationship.

Design/methodology/approach

A web-based survey was distributed among managers involved in supply chain relationship management (e.g. supply chain or purchasing managers). LinkedIn was used to identify and contact adequate respondents, and 221 valid responses were collected. The proposed theoretical model was empirically tested using structural equation modelling based on partial least squares (PLS-SEM).

Findings

Results suggest that emotions can shape a firm's response to supply chain disruptions. In fact, managers are more likely to pursue both bridging and buffering strategies as their perception of CEs increases. However, the intensity and underlying motivations for pursuing each strategy differ.

Originality/value

When CEs are perceived by buyer managers, stronger supply chain resilience incentivises the choice of cooperative practices within existing suppliers, thereby reinforcing pre-existing links. We conclude that combining companies' inherent variables or capabilities with managerial cognition and perceptions can improve our understanding of decision-making processes and buyer–supplier relationships.

Details

Industrial Management & Data Systems, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0263-5577

Keywords

Open Access
Article
Publication date: 30 April 2024

Jose Matas, Nieves Perez, Laura Ruiz and Marta Riquelme-Medina

This study aims to investigate the interplay between a proactive attitude towards disruptions – supply chain disruption orientation – and supply chain resilience, increasing our…

Abstract

Purpose

This study aims to investigate the interplay between a proactive attitude towards disruptions – supply chain disruption orientation – and supply chain resilience, increasing our understanding of their influence on reducing the impact of supply chain disruptions within the B2B context.

Design/methodology/approach

As unexpected disruptions are closely related to a dynamic and changing perception of the environment, this research is framed under the dynamic capabilities lens, consistent with existing resilience literature. The authors used partial least squares-path modeling (PLS-PM) to empirically test the proposed research model using survey data from 216 firms.

Findings

Results show that a proactive approach to disruptions alone is insufficient in mitigating their negative impact. Instead, a firm’s disruption orientation plays a crucial role in boosting its resilience, which acts as a mediator, reducing the impact of disruptions.

Originality/value

This paper sheds light on the mechanisms by which firms can mitigate the effects of supply chain disruptions and offers insights into how certain capabilities are needed so that firms’ attitudes can effectively impact firm performance. This research thus suggests that dynamic capabilities, traditionally perceived as being enabled by other elements, act themselves as enablers. Consequently, they have the potential to translate strategic orientation or attitudes into tangible effects on performance, enriching our understanding of how firms combine their internal attitudes and capabilities to achieve sustained competitive advantage.

Details

Journal of Business & Industrial Marketing, vol. 39 no. 13
Type: Research Article
ISSN: 0885-8624

Keywords

Article
Publication date: 27 January 2012

Felipe Mata, José Luis García‐Dorado, Javier Aracil and Jorge E. López de Vergara

This study aims to assess whether similar user populations in the Internet produce similar geographical traffic destination patterns on a per‐country basis.

1678

Abstract

Purpose

This study aims to assess whether similar user populations in the Internet produce similar geographical traffic destination patterns on a per‐country basis.

Design/methodology/approach

The authors collected a country‐wide NetFlow trace, which encompasses the whole Spanish academic network. Such a trace comprises several similar campus networks in terms of population size and structure. To compare their behaviors, the authors propose a mixture model, which is primarily based on the Zipf‐Mandelbrot power law to capture the heavy‐tailed nature of the per‐country traffic distribution. Then, factor analysis is performed to understand the relation between the response variable, number of bytes or packets per day, with dependent variables such as the source IP network, traffic direction, and country.

Findings

Surprisingly, the results show that the geographical distribution is strongly dependent on the source IP network. Furthermore, even though there are thousands of users in a typical campus network, it turns out that the aggregation level which is required to observe a stable geographical pattern is even larger.

Practical implications

Based on these findings, conclusions drawn for one network cannot be directly extrapolated to different ones. Therefore, ISPs' traffic measurement campaigns should include an extensive set of networks to cope with the space diversity, and also encompass a significant period of time due to the large transient time.

Originality/value

Current state of the art includes some analysis of geographical patterns, but not comparisons between networks with similar populations. Such comparison can be useful for the design of content distribution networks and the cost‐optimization of peering agreements.

Article
Publication date: 9 November 2022

H. Kent Baker, Deepak Kumar and Neelam Rani

Foreign divestment of subsidiaries is a growing research field. The global increase in investments has led to more divestments. However, much about the processes and circumstances…

Abstract

Purpose

Foreign divestment of subsidiaries is a growing research field. The global increase in investments has led to more divestments. However, much about the processes and circumstances leading to foreign divestments (FDs) requires further investigation. This study aims to review and consolidate the existing literature on foreign divestment and identify avenues for future research.

Design/methodology/approach

This study performs a systematic literature review and bibliometric analysis of studies on FDs to highlight the traditional and emerging perspectives in the field. This work examines foreign divestment theories based on operations, human resources, finance and marketing business functions.

Findings

This study sets forth a basic foreign divestment framework and highlights potential research areas. Future studies should expand to emerging economies, explore complex relationships, distinguish foreign divestment types and identify the limits of various theories and perspectives.

Originality/value

This study discusses traditional theories such as economies of scale, portfolio adjustment, reverse eclectic, real options and transaction cost economies. This study also examines emerging perspectives: attention-based, behavioral, committedness, contingency, favoritism, flexibility, hysteresis, legitimation, network and resource-based views. This study uses traditional and emerging theories to explain foreign divestment decisions in different business functions.

Details

Qualitative Research in Financial Markets, vol. 15 no. 2
Type: Research Article
ISSN: 1755-4179

Keywords

Article
Publication date: 16 September 2022

Geetha Jose, Nimmi P.M. and Vijay Kuriakose

The study aims to look into the mechanism by which perceived human resource management (HRM) practices impact nurses' engagement, by specifically looking into the role of…

1217

Abstract

Purpose

The study aims to look into the mechanism by which perceived human resource management (HRM) practices impact nurses' engagement, by specifically looking into the role of psychological availability and psychological safety.

Design/methodology/approach

A cross-sectional questionnaire survey was conducted among nurses (n = 465). Data were collected from nurses of National Accreditation Board for Hospitals and Healthcare Providers (NABH) accredited hospitals by employing two stage sampling.

Findings

Results indicate significant positive association between HRM practices and employee engagement. Role of psychological safety and psychological availability as mediators was also confirmed. The study supported the proposition that HRM practices affected employee engagement through psychological safety and then psychological availability thus approving serial mediation.

Originality/value

This research also contributes to a more comprehensive understanding of the ways to achieve employees' psychological safety, availability, and thus nurse engagement.

Details

International Journal of Productivity and Performance Management, vol. 73 no. 1
Type: Research Article
ISSN: 1741-0401

Keywords

Article
Publication date: 19 January 2024

Mário Nuno Mata, José Moleiro Martins and Pedro Leite Inácio

The purpose of this study is to identify the relationship between collaborative innovation and the financial performance of information technology (IT) firms through the mediating…

Abstract

Purpose

The purpose of this study is to identify the relationship between collaborative innovation and the financial performance of information technology (IT) firms through the mediating role of strategic agility and absorptive capacity. Customer knowledge management capability (CKMC) is also explored as a potential moderator.

Design/methodology/approach

Data were collected from 300 respondents working in different small to medium IT enterprises operating in different cities around Portugal. The simple random sampling method was used for data collection, and Smart partial least squares-structural equation modeling (Smart PLS-SEM version 3.2.8) was used to test the hypotheses.

Findings

The findings demonstrate that collaborative innovation contributes significantly to the financial performance of IT firms in Portugal. The results also indicate that absorptive capacity and strategic agility both positively and significantly affect the relationship between collaborative innovation and firms’ financial performance. However, while the moderating role of CKMC has a positive and significant effect on the relation between collaborative innovation and strategic agility, CKMC insignificantly moderates the relation between collaborative innovation and absorptive capacity.

Originality/value

Few studies have explicitly connected collaborative innovation with firms’ financial performance; this study attempts to fill that gap. Moreover, this research investigates the mediating role of strategic agility and absorptive capacity in the relationship between collaborative innovation and financial performance. Finally, by discussing the moderating effect of CKMC, which leads to enhanced financial performance, this study proposes that when complex and unpredictable situations occur, managers should focus on customer-oriented strategies and innovation at the same time to outpace their competitors.

Details

Journal of Knowledge Management, vol. 28 no. 4
Type: Research Article
ISSN: 1367-3270

Keywords

Open Access
Article
Publication date: 11 July 2022

Victor Marchezini, Joao Porto de Albuquerque, Vangelis Pitidis, Conrado de Moraes Rudorff, Fernanda Lima-Silva, Carolin Klonner and Mário Henrique da Mata Martins

The study aims to identify the gaps and the potentialities of citizen-generated data in four axes of warning system: (1) risk knowledge, (2) flood forecasting and monitoring, (3…

2074

Abstract

Purpose

The study aims to identify the gaps and the potentialities of citizen-generated data in four axes of warning system: (1) risk knowledge, (2) flood forecasting and monitoring, (3) risk communication and (4) flood risk governance.

Design/methodology/approach

Research inputs for this work were gathered during an international virtual dialogue that engaged 40 public servants, practitioners, academics and policymakers from Brazilian and British hazard and risk monitoring agencies during the Covid-19 pandemic.

Findings

The common challenges identified were lack of local data, data integration systems, data visualisation tools and lack of communication between flood agencies.

Originality/value

This work instigates an interdisciplinary cross-country collaboration and knowledge exchange, focused on tools, methods and policies used in the Brazil and the UK in an attempt to develop trans-disciplinary innovative ideas and initiatives for informing and enhancing flood risk governance.

Details

Disaster Prevention and Management: An International Journal, vol. 31 no. 6
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 18 November 2020

José Alberto Solis-Navarrete, Saray Bucio-Mendoza, Pedro Mata-Vázquez and María Xochitl Astudillo-Miller

Mexico has an economic dynamic mostly associated with low added value sectors; regions of Guerrero and Michoacan highlight at national and even international levels in the…

Abstract

Purpose

Mexico has an economic dynamic mostly associated with low added value sectors; regions of Guerrero and Michoacan highlight at national and even international levels in the agri-food production, however, they present substantial lags in their development and competitiveness. The purpose of this paper is to analyze the innovation policy in the agri-food sector of these regions through its regulations and local policy.

Design/methodology/approach

The present work has a qualitative approach through a case study with the treatment of units of analysis (UA), in which innovation policy in the agri-food sector as main UA, whose sources of interpretation have been direct observation and documentary sources such as laws and the guiding instruments of the regional public policy on innovation and the agri-food sector.

Findings

This paper identifies severe institutional weaknesses, a lack of incentives and structures for generating certainty and innovation capabilities in the agri-food sector. Both regions have weak and poorly articulated institutions in their innovation policy, with few incentives and scarcely defined property rights tending to increase uncertainty among the actors participating in the agri-food sector, although the economic dynamics of both regions is mostly associated with that sector, therefore, the low development and lack of competitiveness are a direct consequence of a minimum priority of innovation policy.

Research limitations/implications

Our research is useful for the academic sphere by contributing to applied knowledge on the implications of innovation policy at the sectoral level on the development and competitiveness of regions, particularly in an emerging country such as Mexico, allowing to generate bridges gaps between theory and practice.

Practical implications

The main contribution is for policymakers, allowing them to compare and facilitate a better design of regulatory and public policy instruments that enable them to address and enhance economic vocations through innovation for regional development.

Originality/value

The research focuses on a debate at the regional level on the institutional limitations of promoting innovation through public policy. This study approaches economic and political processes having as empirical evidence of two undeveloped Mexican regions that stand out internationally in agri-food production. These regions have sectoral dynamics inserted in global value chains but have not achieved a local articulation, which has negatively affected their competitiveness and development. The cases of Guerrero and Michoacan are examples of regions like many others, which present diverse institutional weaknesses and lack of incentives associated with innovation policy that limit the development and articulation of their territorial capabilities.

Details

Journal of Science and Technology Policy Management, vol. 12 no. 1
Type: Research Article
ISSN: 2053-4620

Keywords

Article
Publication date: 3 October 2016

Leovardo Mata and José Antonio Núñez Mora

The purpose of this paper is to analyze the dependence between the Chinese and Market Integrated Latin America (MILA) stock markets.

Abstract

Purpose

The purpose of this paper is to analyze the dependence between the Chinese and Market Integrated Latin America (MILA) stock markets.

Design/methodology/approach

The authors adjust the multivariate probability distribution Variance Gamma (VG) on data yields from the Hang Seng Index (HSI) and MILA and they use the estimated parameters under VG to find a robust estimator of the correlation matrix yields.

Findings

The degree of dependence between stock indices from China, Peru, Mexico, Colombia and Chile. In addition, the impact of the change in the HSI affects mostly the movements of the selective stock price index (IPSA) and equally affects the index of the Mexican stock exchange (IPC) and Lima Stock Exchange (S&P/BVL). The effect on index of the Colombia Stock Exchange (COLCAP) is not significant.

Research limitations/implications

Over time there are different structural changes so the time has been restricted to the years 2000-2015, but could extend the analysis to other time periods and sectors of listed companies in the indices.

Practical implications

The results can guide policy makers to assess the effect of a random crash on stock markets and measure the level of risk from other markets.

Social implications

The results can generate a greater understanding of the relationship between the stock markets of China and the emerging countries of Latin America.

Originality/value

The value of this paper is to focus on alternative methodology to calculate the correlation matrix yields and measure the dependence between the Chinese and MILA stock markets.

Details

Journal of Chinese Economic and Foreign Trade Studies, vol. 9 no. 3
Type: Research Article
ISSN: 1754-4408

Keywords

1 – 10 of 105