Andrés Muñoz-Villamizar

Universidad de La Sabana · Escuela Internacional de Ciencias Económicas y Administrativas

The global economy has experienced significant disruptions due to the COVID-19 pandemic, profoundly impacting production and consumption patterns. This paper examines the effect of the pandemic on consumer goods prices, focusing on a sample of hand sanitizers, soap, disinfectants, and baking yeasts. The selection of these products was motivated by...

E-commerce's rapid growth, combined with customer demand for fast shipping, has significantly escalated last-mile transportation, particularly home deliveries. This surge calls for novel strategies to optimize vehicle utilization while maintaining timely delivery. In response, many online retailers are incentivizing customers to embrace delayed hom...

Purpose This paper proposes a maturity model to indicate the operational excellence (OE) implementation status of businesses in emerging countries, considering its importance in Industry 4.0. Design/methodology/approach The study involves four steps. First, undertake a study of the literature to identify the variables to consider in the maturity m...

This paper addresses the dearth of studies examining the status of Operational Excellence (OE) implementation and offers a roadmap for enhancing OE maturity levels. The study encompassed three phases: (1) face-to-face interviews with industry OE experts in 57 companies across seven sectors, (2), classification of companies based on their maturity l...

In response to the escalating challenges of global inflation, particularly in developing countries like Brazil, this study combines web scraping and machine learning to analyze inflation dynamics within the retail sector. By systematically real-time pricing and product data from a sponsor company and its four main competitors, we focus on Brazil’s...

The increasing complexity of economic, environmental, and social systems causes crises, uncertainty and risk to become common global issues, and organizations that want to achieve long-term prosperity must pursue corporate sustainability, i.e., the joint pursuit of environmental, social, and economic goals, in order to successfully face the complex...

Due to safety perceptions, Colombian banking clients prefer to visit bank branch offices instead of other channels. Thus, there are long waiting for lines at branch offices. Considering the need for more tools for strengthening and streamlining client service, the number of financial clients tends to diminish. In this context, this paper aims to me...

Purpose This research has the following specific objectives: provide an overview of the literature addressing operational excellence (OE) and OE in emerging countries; propose an integrative framework of OE attributes; and propose future research directions for the OE literature. Design/methodology/approach To remain competitive in industry, many...

Environmental efficiency should not be treated independently of production efficiency. Several studies have demonstrated that lean management can be a major part of the answer to improving the environmental performance of companies. In this context, this work integrates existing methodologies and approaches from lean thinking, Industry 4.0 and math...

Urbanization growth, together with the limited capacity of the road network, has worsened traffic congestion inside the cities. To improve the urban traffic conditions, it is essential to better understand and measure urban-traffic behavior not only on different period time of a day (e.g., morning or evening peaks) but also on different days (i.e.,...

Sustaining continuous improvement activities is one of the biggest challenges that companies face. In order to foster operator participation in continuous improvement activities, this paper aims to present and validate a scale for measuring middle manager trustworthiness. Firstly, we combine the available literature with two concept mappings, one w...

The COVID-19 pandemic, the evolution of Industry 4.0, and its implementation in logistics lead to the acceleration of Digital Supply Chains (DSC). These networks adopt technologies such as Sensor Nodes, Radio Frequency Identification or Artificial Intelligence that allow managers to get traceability of the Supply Chain. Traceability of the Supply C...

Supply chains constantly face new problems that go way beyond the traditional issues of supply and demand uncertainty, particularly due to the impact of worldwide disruptive events. This paper aims at mapping academic literature examining so far issues related to the impact on supply chains of the COVID-19 outbreak based on a thorough literature re...

Lean and green are major compatible management initiatives because of their joint focus on waste reduction, efficient use of resources and emphasis on satisfying customer needs at the lowest possible cost (economic and environmental). From this angle, this paper presents a bibliometric analysis of the integration of lean and green management. To th...

It is expected that the so-called Industry 4.0 brings a multitude of benefits toward more sustainable industrial value creation. However, scientific literature presenting success stories related to Industry 4.0 and sustainability are limited. Using some technologies included in the Industry 4.0 strategy, we present a research project application ba...

Successful project management can help organisations reducing costs and increasing its efficiency. Likewise, operations research has contributed significantly to improve project management performance with phase-project-planning methodologies. However, as far as we know, there is no a literature review that compiles operations research in project m...

The rapid growth of urbanisation and e-commerce has increased the number of home deliveries that need to be made in retail operations. Consequently, there is also an increase in unexpected incidents, such as adverse traffic, unavailability of parking space, and vehicle breakdowns. These disruptions result in delays, higher costs, and lower service...

Operational excellence is directly related to improving performance and efficiency in every dimension of sustainability (i.e., economic, environmental and social). Consequently, companies are implementing this initiative to remain competitive in their industries. Previous works measured operational excellence in first-world companies. However, it i...

The growth of e-commerce has increased the number of home deliveries that need to be made in retail operations. Strategies such as reducing routing distance using optimisation models have been the most popular approaches to enhancing the efficiency of the delivery process and reducing its environmental burden. However, recently, customer purchasing...

ater has become a critical resource due to increased manufacturing activities. However, there is a lack of detailed information on water management and consumption by industries. In the recent bibliography, lean–green was established as a good approach for achieving sustainability in manufacturing industries, but few studies have aimed to achieve b...

Consumer demand for short delivery windows has driven companies to compete for faster shipping to clients. Recently, Amazon and Walmart along with other major companies have started offering same-day delivery. That translates into not using full truckload capacities, requiring more frequent dispatch, and in turn, increases transportation cost. Howe...

Successful project management can help organisations in reducing costs and increasing its efficiency. Likewise, operations research has contributed significantly to improve project management performance withphase-project-planning methodologies. However, as far as we know, there is no literature review that compiles operations research in project m...

Purpose This research is inspired by a real case study from a pump rental business company across the US. The company was looking to increase the utilization of its rental assets while, at the same time, keeping the cost of fleet mobilization as efficient as possible. However, decisions for asset movement between branches were largely arranged betw...

Purpose: Urban logistics presents a series of challenges, as the interests of the different stakeholders are not always aligned. The aim of this research is to explore the potential of applying Lean principles to reduce waste in urban logistics. Design/methodology/approach: As a structure for “going to gemba,” the authors implemented the shadowing...

Firms are increasingly organized around the client. At the same time, there is customer pressure on green and sustainable organizations. The purpose of this paper is to map the current state of the research in the domain of customer-centric organizations from a sustainability perspective. We conducted a bibliometric analysis from published document...

Firms are increasingly organized around the client. At the same time, there is customer pressure on green and sustainable organizations. The purpose of this paper is to map the current state of the research in the domain of customer-centric organizations from a sustainable perspective. We conducted a bibliometric analysis from published documents b...

During recent years, advances in drone technologies have made them applicable in various fields of industry, and their popularity continues to grow. In this paper, the academic contributions on drones routing problems are analyzed between 2005 and 2019 to identify the main characteristics of these types of problems, as well as the research trends a...

During the last two decades, the concept of sustainable development has gained more and more importance to start rebuilding our society and living conditions for the welfare of everyone. However, this initiative cannot be developed by its own and needs the support of different areas and new strategies, technologies, and developments. Therefore, it...

Environmental sustainability is a requirement for modern urban freight transport systems. On a global scale, most resources are currently consumed in cities, contributing to the economic importance of urban freight transport as well as its poor environmental performance. However, there is a lack of knowledge about how to correctly quantify the envi...

Sustainability and Industry 4.0 are trending concepts today. It is expected that Industry 4.0 brings a multitude of benefits toward more sustainable operations such as manufacturing. In manufacturing, monitoring and control approaches are the most common tools included in the Industry 4.0 strategy. In this context, this paper presents a literature...

Nowadays, urban freight transport networks must be environmentally sustainable. As a consequence, collaboration strategies have been implemented as one alternative to enhance the efficiency of the supply chain and to reduce its environmental burden. However, there is a lack of knowledge about how to correctly quantify the environmental impact of co...

This document focuses on the 'last-mile' distribution of dairy products of a company in Colombia. To improve the current operational and economic performance of the company a heuristic solution method is proposed to solve a Vehicle Routing Problem with Time Windows. This problem characterizes the 'last-mile' delivery problem that the dairy company...

La exposición temprana y creciente a la tecnología de los llamados millennials hace que, como alumnos universitarios, tengan preferencia por enfoques de aprendizaje interactivos y experienciales. En este contexto, se han desarrollado nuevas metodologías de enseñanza que mejoran el compromiso, la motivación y el rendimiento de los alumnos utilizando...

Purpose: The purpose of this paper is to analyze gaps and trends, as well suggest approaches and methodologies that should be addressed by future studies for implementing the lean and green management in the agri-food sector. Design/methodology/approach: Based on a sample with 117 papers, this paper presents a systematic review on the integration...

Digitalization is impacting almost every aspect of people’s life and is greatly affecting supply chain processes. At the same time, supply chains are becoming progressively more aware of their impacts on people, the planet and profits (triple bottom line perspective) and the concept of sustainable supply chain has received increasing attention amon...

This paper assesses the effectiveness in scheduling independent jobs with earliness/tardiness costs and variable setup times applying the Overall Equipment Effectiveness (OEE). The OEE is a common metric for measuring the manufacturing productivity. We defined a mixed-integer linear programming formulation of the parallel machine scheduling problem...

Poor urban planning and traffic congestion lead to excessive delays in workers’ transit times and decrease their quality of life, especially in emerging countries. Several medium and large companies have a need to hire a transport service for their staff. In this type of transportation system, there is a heterogeneous fleet of vehicles, which are a...

Purpose: The purpose of this paper is to introduce a new methodology called overall greenness performance for value stream mapping (OGP-VSM). Using value-added concepts, this approach has the potential to integrate, measure, control and improve productive and environmental performance in accordance with a company’s context. Design/methodology/appr...

Nowadays companies are trying to become ‘greener’, which requires integrating the environmental dimension into their traditional performance metrics. However, managers may not have the complete information and data for their environmental problems and, crucially, there is a lack of knowledge about how these environmental issues affect a company’s p...

Despite its negative impacts, freight transportation is a primary component of all supply chains. Decision makers have considered diverse strategies, such as Horizontal Collaboration (HC) and the usage of alternative types of vehicles, to reduce overall cost and the related environmental and social impacts. This paper assesses the implementation of...

Manufacturers have become progressively more aware of their operations' impacts on the triple bottom line (social, environmental and financial), and they are under increased pressure to account for their resource consumption and environmental footprint. These challenges are forcing companies to implement and combine different management approaches,...

The transport of goods is essential for the economic growth of cities and regions. Urban freight transportation makes up a very small percentage of the total transportation time for goods, but it can represent up to 28% of total transportation costs. To reduce overall costs and increase revenue from this operation, one common methodology used by de...

The increase in environmental awareness has triggered numerous green initiatives at companies. This paper presents the Overall Greenness Performance (OGP), a metric based on the well-known Overall Equipment Effectiveness (OEE). The OGP is a hierarchy of metrics based on the Lean Manufacturing framework that measures how environmentally efficient a...

The increase in environmental and social awareness has triggered numerous green initiatives at companies. Traditionally, companies’ training related to environmental management focuses on technical aspects and theoretical concepts. In addition to these theoretical contents, it is necessary to carry out practical activities to impart the desired beh...

Transportation is one of the essential services in cities that contribute to the quality of life. As a result, efficient methods for transport planning have become increasingly important. Decision makers have considered collaborative strategies to reduce the overall cost of the supply process and to improve the efficiency and effectiveness of urban...

This paper considers the problem of scheduling a given set of jobs or tasks in a hybrid flowshop system. Since this problem is known in the literature to be NP-hard, most of academic works has been centered on the analysis of meta-heuristics and hybridized procedures. However, intelligent manufacturing systems in actual industrial practices mostly...

This paper considers the problem of scheduling a given set of jobs or tasks in a hybrid flowshop system. Since this problem is known in the literature to be NP-hard, most of academic works has been centered on the analysis of meta-heuristics and hybridized procedures. However, intelligent manufacturing systems in actual industrial practices mostly...

City logistics refers to the process of total optimisation of the logistics and transport activities in urban areas while considering economic, environmental, social and safety aspects. This paper considers a collaborative scenario for the urban goods transport planning and management as a way to reduce transport costs, congestion and environmental...

This paper proposes an approach based on mathematical modeling for tactical and operational decision-making in urban distribution of goods. Collaborative and non-collaborative scenarios are compared using real-data from the city of Bogota, Colombia. Both scenarios are modeled as capacitated vehicle routing problems (CVRP). Results highlight the qua...

The implementation of urban distribution centers near to city centers to allow freight consolidation is a widely extended initiative worldwide, seeking to improve traffic congestion and quality of life in downtown, among others. This paper considers the problem of locating urban distribution centers and proposes an exact method, based on integer li...

In most medium and large sized cities around the world, freight transportation operations might have a noticeable impact on urban traffic mobility as well as on city commercial activities. In order to reduce both traffic congestion and pollution levels, several initiatives have been traditionally implemented. One of the most common strategies conce...

This paper considers the stochastic version of the location-routing problem (SLRP) in which transportation cost and vehicle travel speeds are both stochastic. A hybrid solution procedure based on Ant Colony Optimization (ACO) and Discrete-Event Simulation (DES) is proposed. After using a sequential heuristic algorithm to solve the location subprobl...

In this paper, we elaborate a methodology to study a particular case of collaborative network: city logistics. We identify that many solutions for urban logistics are, most of time, badly evaluated. Indeed, the theory often predicts a positive effect but the reality is most of time counterbalanced. We tried to fill this gap by making use of innovat...