Alvaro Garay, Angie Ruiz and Jose Guevara
This study aims to analyze the technical, environmental, economic and thermal comfort impacts of implementing passive measures and heating systems in Ciudad Verde, a large-scale…
Abstract
Purpose
This study aims to analyze the technical, environmental, economic and thermal comfort impacts of implementing passive measures and heating systems in Ciudad Verde, a large-scale social housing project located at the periphery of Bogota, Colombia.
Design/methodology/approach
A system dynamics (SD) model is proposed to evaluate scenarios through counterfactual experiments, including technical, environmental and economic components. Model inputs are obtained from building energy simulation models and data collected from official reports, public policy documents and construction records.
Findings
Results suggest that the use of heating systems is the best choice to achieve thermal comfort conditions throughout the day. However, both the capital expenditures and CO2 emissions associated with such system make their adoption very difficult. In line with that, the use of heating systems in combination with passive measures stands out as a viable solution since their costs are affordable and their use contributes to reducing CO2 emissions.
Originality/value
The proposed model recreates the dynamics underlying social housing construction processes, the adoption of heating systems and passive measures in low-income dwellings and their corresponding impact on CO2 emissions and indoor thermal comfort conditions. The model can be employed as a support tool in the formulation of social housing policies associated with thermal comfort specifications. In this way, the model represents a first step toward incorporating thermal-related variables into the decision-making processes related to social housing planning and development.
Details
Keywords
Gabriel Castelblanco, Jose Guevara and Alberto De Marco
Global crises have become increasingly recurrent events that jeopardize public-private partnerships (PPPs). In this context, the purpose of this paper is to expose the PPP-crisis…
Abstract
Purpose
Global crises have become increasingly recurrent events that jeopardize public-private partnerships (PPPs). In this context, the purpose of this paper is to expose the PPP-crisis research agenda by combining bibliometric and network analyses.
Design/methodology/approach
The PPP literature associated with global crises between the 2008 global financial crisis and 2022 was analyzed in three stages: (1) paper selection and screening for the inclusion/exclusion of articles relevant to this research, (2) semantic network development for examining thematic relationships among selected papers by considering the co-occurrence of keywords within the chosen studies and (3) calculation of network metrics for analysis.
Findings
The paper identified six research avenues for the PPP-crisis agenda: public interest, relational governance, risk management, user-pay PPPs, crisis management and financial performance. The PPP-crisis literature has spread significantly in the last five years driven by the case study approaches on a national or regional basis. Conversely, non-crisis periods generate room to strengthen user-pay PPPs and relational governance. The pandemic and post-pandemic times shared the priorities of the 2008 financial crisis but also strengthened the management of the risks and the structural drivers of the global crisis.
Originality/value
This study demonstrates that during global crisis periods, the public interest and financial performance gain relevance in a detriment of structural solutions to social legitimacy erosion of PPPs because of the urgency of giving tools to the public and private sectors to tackle the financial issues, which steer future issues for PPPs.
Details
Keywords
William León, Jose Guevara and Nelly P. Garcia-Lopez
This research article proposes a quantitative method for analyzing planning reliability and risk evaluation in construction projects through probabilistic numerical simulation…
Abstract
Purpose
This research article proposes a quantitative method for analyzing planning reliability and risk evaluation in construction projects through probabilistic numerical simulation models. The aim is to assess the combined time-based variability of activities across the project and its impact on planning reliability in various production management systems.
Design/methodology/approach
The study examines different methods for comparing the impact of production management strategies, specifically standardization and lean construction practices, on project reliability. The article introduces Monte Carlo, importance sampling and first-order-second moment methods as quantitative tools for decision-making and continuous improvement in construction projects.
Findings
The utilization of multiple numerical simulation models demonstrates how the variability in activity durations directly affects planning reliability, leading to uncertainty and increased risk in construction projects. The study highlights the significance of lean construction principles and industrialized processes, such as standardization of processes and construction methods, in reducing variability and improving the average duration of activities. Furthermore, it quantifies the differential impact of various production management systems on project performance and planning reliability.
Research limitations/implications
This study is based on a limited number of case studies, which may affect the generalizability of the findings. The results are specific to the construction projects analyzed in Colombia. Expanding the research to include a broader range of projects will improve the applicability of the findings. Developing more comprehensive numerical models can also enhance understanding of planning reliability across different construction management systems.
Originality/value
Currently, there are limited quantitative methods available for project managers to evaluate the impact of industrialized construction practices and production management strategies on planning reliability as well as quantifying the associated risk level in project delays. Consequently, the adoption of innovative construction methods is often limited to a few pilot projects, as managers lack numerical evidence to support the implementation of new methodologies that require changes in traditional operational practices.
Details
Keywords
Nestor U. Salcedo, Miguel Garcia-Cestona and Katherina Kuschel
A student can evaluate the variables related to the corporate governance decision for the future of the companies while simultaneously facing other internal factors, such as…
Abstract
Learning outcomes
A student can evaluate the variables related to the corporate governance decision for the future of the companies while simultaneously facing other internal factors, such as understanding the owner's address style. In addition, the student will be able to balance and weigh current resources, understanding that the conceptual frameworks of agency theory, resource dependence theory, agency and transaction costs, as well as the types of leadership and power are useful to understand this type of companies, common in emerging markets.
Case overview/synopsis
This case describes the actions of Nestor Salcedo Guevara, founding partner of Industrial Andina S.A. and owner of NSG Service Stations, companies focused on industrial manufacturing and retail fuel sales, respectively. The case covers a period of 40 years, from the founding of Industrial Andina S.A. in 1978, its restructuring into a family business in 1982, the strategic decisions concerning the political and economic situations from the eighties to the new millennium, and the creation of NSG Service Stations in the year 2000, until August 2018, when Nestor faced the decision to expand NSG Service Stations and reactivate Industrial Andina SA with new projects. Therefore, Nestor must decide the next steps for the future of both companies. This case study highlights several challenges of business economics and administrative strategy facing entrepreneurs or experienced managers and allows to discuss in class concepts of corporate governance such as ownership structure, incomplete contracts, management styles and defensive strategies associated with the power of the CEO - Owner.
Complexity academic level
Undergraduate students in Business Administration or Economics and post-graduate MBA. Business Economics courses, Strategic Management, Corporate Governance courses.
Supplementary materials
Teaching Notes are available for educators only.
Subject code
CSS 11: Strategy.
Details
Keywords
Plaintiffs range from users, customers, app developers, investors, competitors, employees (current and former), law enforcement and tax agencies. They are seeking redress for…
Details
DOI: 10.1108/OXAN-DB261220
ISSN: 2633-304X
Keywords
Geographic
Topical
Entrepreneurship; tourism and hospitality.
Abstract
Subject area
Entrepreneurship; tourism and hospitality.
Study level/applicability
Junior or senior-level business students as well as graduate-level (MBA and/or EMBA) classes in entrepreneurship, small business management, strategic management, international business or international economics.
Case overview
Cuban tour guides working for the communist Castro Government dream of working for themselves or leaving for the USA. Their story is contrasted by a visit to Cuba as told by a US business professor.
Expected learning outcomes
To compare entrepreneurship under capitalism that is slowly relaxing their communistic rules, to learn more about the island of Cuba and its potential for tourism and new venture creation, to understand the legal, social, political, historical and cultural barriers to entrepreneurship, to hypothesize or brainstorm potential new ventures for Cuba.
Supplementary materials
Teaching notes; photos also available upon request from the author.
Details
Keywords
Boeing Laishram, Ganesh Devkar, Yongjian Ke and Ahmed Abdel Aziz
Provides a bibliography of materials about Cuba and the Cuban Revolution published in the UK, Australia, Cuba, and the USA. Lists solidarity organizations, publishers and works by…
Abstract
Provides a bibliography of materials about Cuba and the Cuban Revolution published in the UK, Australia, Cuba, and the USA. Lists solidarity organizations, publishers and works by and about people who lived in Cuba before and after the Revolution. Aims to be of use to students of modern history, Latin America, and revolutionary politics.
Details
Keywords
This chapter examines books written by foreign authors which were published in Brazil and censored by the military regime between 1964 and 1985. The study focuses on non-fiction…
Abstract
This chapter examines books written by foreign authors which were published in Brazil and censored by the military regime between 1964 and 1985. The study focuses on non-fiction books, using official period documentation, with the goal of conducting an extensive survey of these works as well as examining the reasons why they were censored by the regime. The results of the research lead us to a greater understanding of the reasoning of censorship from within the State and to a greater understanding of the Brazilian military dictatorship as a whole.
Details
Keywords
José António C. Santos, Manuel Ángel Fernández-Gámez, Antonio Guevara-Plaza, Margarida Custódio Santos and Maria Helena Pestana
This study aimed to assess whether sociodemographic variables explain significant differences in attitudes towards transforming academic conferences into more sustainable events.
Abstract
Purpose
This study aimed to assess whether sociodemographic variables explain significant differences in attitudes towards transforming academic conferences into more sustainable events.
Design/methodology/approach
An analytical model of participants' attitudes towards sustainable conferences based on literature review as well as the theories of reasoned action and planned behaviour was developed and applied to a sample of 532 surveyed individuals from 68 countries who regularly attended academic conferences in the last five years prior to 2020. The results were refined using statistical and computational techniques to achieve more empirically robust conclusions.
Findings
Results reveal that sociodemographic variables such as attendees' gender and age explain differences in attitudes. Women and older adults have stronger pro-environmental attitudes regarding event sustainability. On the other hand, attitudes towards more sustainable academic conferences are quite strong and positive overall. More sustainable events' venues, catering, conference materials and accommodations strongly influence attendees' attitudes towards more sustainable conferences. The strength of attitudes was weaker towards transportation.
Research limitations/implications
First, the analyses focused on only aspects related to the attendees' attitudes. Assessing their real behaviour would complete this research. The geographical areas defined by the U.N. and used in this study have the limitation of combining highly developed countries and developing countries in the same geographical area, for example, the Americas and Asia and the Pacific.
Practical implications
Specific socio-demographic variables' effects on attitudes towards sustainable academic conferences can indicate how organisers can best promote these events according to attendees' characteristics and develop differentiated marketing campaigns. For women and older adults, event sustainability should be emphasised as a competitive strategy to promote events and attract these audiences. Marketing strategies for younger attendees (under 30 years old) could focus on technology, networking or attractive social programmes. Sustainable venues, catering, conference materials and accommodations are easier to promote. Event organisers should encourage participants to make more environmentally friendly decisions regarding more sustainable event transport.
Social implications
A strategy based on promoting the event as contributing to sustainable development could educate attendees and put them on the path to developing stronger positive attitudes regarding sustainability and more sustainable behaviours. Sustainable academic conferences can educate students, organisers, service providers and delegates through their involvement in sustainable practices.
Originality/value
To our best knowledge, this research is the first to assess whether sociodemographic variables explain significant differences in attitudes towards the sustainable transformation of academic conferences.