MARTÍNEZ VIVAR, RODOBALDO
Preferred name
MARTÍNEZ VIVAR, RODOBALDO
Main Affiliation
GADEP - Grupo de Estudios de Administración Empresarial y Pública
Web Site
ORCID
0000-0002-1934-1185
Scopus Author ID
57192373170
53 results
Now showing 1 - 10 of 53
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Item type:Publication, Understanding business centralization strategy from a structural equation model(Virtus Interpress, 2025-02-26); ; ; ; Margarita de Miguel-Guzmán<jats:p>The present investigation was oriented to validate the existing relationship between individual, organizational, and environmental variables, in terms of the presence of centralization or decentralization levels, in line with important results of previous investigations and various hypotheses formulated by Mintzberg (2001) regarding organizational design. For its development, measurement instruments were designed (Robbins & Judge, 2017), validated, and applied for the variables identified in the research to managers of 382 organizations, ensuring the representation of organizations of different sizes and productive sectors. Initially, an initial characterization of the variables under study was carried out, to later carry out an exploratory factor analysis that allowed identify the existence of six dimensions that corresponded to the variables established in the initially proposed model to subsequently corroborate it, using structural equations. It can be stated that the main finding of this research is to verify, through the construction of the structural equation model, the validity of several hypotheses formulated by Mintzberg (2001) related to centralization. Based on the above, it can be stated that the level of centralization in an organization is the result of the conditioning of multiple variables related to the individual characteristics of the managers, the level of maturity of the organizational forms present in the organization, and the characteristics of the environment.</jats:p> - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Contribution margin and quantity matrix to analyze the product portfolio in the context of SMEs. Criticism of the BCG matrix and its alternatives(Informa UK Limited, 2023-09-06); ; ; Product portfolio analysis is a critical aspect of small and medium-sized enterprises (SMEs) strategic planning and decision-making. It helps SMEs assess their existing product offerings, identify areas for improvement, and make well informed decisions about which products to keep, discontinue, or add to their portfolio. This type of analysis is crucial for SMEs as it enables them to optimize their product mix, allocate resources effectively, and respond to market changes, thereby ensuring growth and profitability. The objective of the research is to present a new product portfolio analysis tool that SMEs with a more efficient and effective way of evaluating their product offerings paying attention to those that cause a negative impact on performance. The Contribution Margin and Quantity Matrix (CMQ matrix) enables SMEs to gain a deeper understanding of their product mix, identify areas for improvement, and make informed decisions about which products to keep, discontinue, or add to their portfolio. This can lead to increased efficiency, better resource allocation and increased competitiveness, ultimately contributing to the success and profitability of the SME. The proposed instrument allowed decisions to be made after being applied in the analysis of the product portfolio of a retail store. The application of the proposed matrix allowed the analysis and decision making in relation to the product portfolio of an SME, facilitating an improvement in the performance indicators of the products studied.Scopus© Citations 4 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Financial Literacy, Trust, and Socioeconomic Determinants of Borrowers’ Behavior in Credit Card Use: A PLS-SEM Analysis(MDPI AG, 2025-12-22); ; ; ; Margarita De Miguel-GuzmánCredit cards play a central role in household financial behavior by combining payment and short-term financing functions shaped by socioeconomic, cognitive, and attitudinal factors. This study examines the determinants of credit card use and repayment behavior in Ecuador, focusing on purchasing power, financial literacy, and institutional trust. A quantitative, cross-sectional, and explanatory design was applied to a probabilistic sample of 550 credit card users from Quito and Santo Domingo. Multivariate analyses and Partial Least Squares Structural Equation Modeling (PLS-SEM)—including formative and hierarchical constructs—were used to validate the proposed behavioral framework. The results show that higher income is associated with more responsible repayment, while financial literacy and trust mediate this relationship through cognitive and attitudinal mechanisms. Moderate R2 values and small-to-moderate f2 effect sizes align with patterns observed in other Latin American credit markets. Behavioral differences also emerge across age, gender, and household composition, underscoring the heterogeneity of financial capability in the region. The findings demonstrate that responsible credit card indebtedness depends not only on economic capacity but also on financial knowledge and institutional trust, offering practical implications for financial inclusion policies and targeted education programs in emerging economies.Scopus© Citations 1 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Tools for measuring and improving external customer satisfaction in stores of Santo Domingo, Ecuador(SAGE Publications, 2017-01-01); ; ; <jats:p> This article is based on the development and application of a procedure to measure and improve external customer satisfaction, allowing a rational intervention in the variables related to the quality of service and leading to the progressive improvement of quality management in stores of Santo Domingo, Ecuador. It was possible to measure the levels of satisfaction experienced by customers based on perceptions about the service they receive. In addition, it allowed the modeling of indicators measuring the degree of customer satisfaction and loyalty, both globally and by processes, from a multi-attribute approach, which uses a linear additive model of attributes that characterize it and identifies those essential and critical of according to its importance and current valuation, in the framework of the specific procedure developed to evaluate the level of service performance, allowing to focus the management actions towards the solution of problems and the improvement of vital aspects of the execution of the service and in this way to maintain a continuous monitoring of the indicators of performance of the customer satisfaction in the selected organization. </jats:p>Scopus© Citations 5 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Incidences of variables in labor absenteeism: an analysis of neural networks(Polish Academy of Sciences Chancellery, 2020-03-17); ; ; Scopus© Citations 2 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Contingency theory to study leadership styles of small businesses owner-managers at Santo Domingo, Ecuador(SAGE Publications, 2017-01-01); ; ; The study provides a discussion about the leadership style of small businesses owner-managers at Santo Domingo de los Tsáchilas, Ecuador, supported on contingency theory of leadership. And adaptation of Hershey and Blanchard questionnaire was made in order to make it clear to the target population. A total of 175 owner-managers of small businesses and 1218 employees comprised the respondents of the study. The perception of leadership style of owner-managers and employees, style range, and style adaptability and perception of the maturity degree of employees were the variables involved in the hypotheses raised. In spite of totally or partially proving the hypothesis raised, findings of the study revealed mixed support to the theory which impedes giving clear recommendations about how to behave in certain organizational situations in the context of small Ecuadorian businesses. Results of the study caution owner-managers of small businesses to consider carefully the way they behave in certain situation to the enrichment of employee motivation toward work with the purpose to obtain a better performance of their enterprises; but should avoid assuming that there are more or less appropriate leader behaviors based on the results of this research. The study constitutes a starting point to focus the research related to leadership style in small companies, considering the preponderance of this type of business in the economy of Ecuador.Scopus© Citations 29 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Artificial Intelligence in Ecuadorian SMEs: Drivers and Obstacles to Adoption(MDPI AG, 2025-05-27); ; ; ; Margarita De Miguel-GuzmánThis study analyzes the current state of artificial intelligence (AI) adoption among micro-, small-, and medium-sized enterprises (MSMEs) in Ecuador, with a focus on its application across core business functions. Using a stratified random sample of 385 firms from the most representative economic sectors, a survey instrument was designed to assess three dimensions: access to AI-enabling conditions, degree of AI utilization, and organizational characteristics. The results reveal that AI adoption remains limited and highly concentrated in marketing-related functions, particularly in content generation and social media automation, with minimal implementation in finance, logistics, and human resource management. The study also identifies the main barriers hindering AI adoption. The lack of qualified professionals and the unavailability of structured databases emerged as the most critical obstacles, followed by limited financial capacity. One-way ANOVA and Kruskal–Wallis tests confirmed significant differences in AI adoption levels based on company size and sector, especially in areas such as inventory optimization and design prototyping. These findings highlight a gap between the potential of AI technologies and their real-world implementation in Ecuadorian MSMEs. They underscore the need for targeted strategies focused on workforce training, digital infrastructure development, and institutional support to promote broader and more effective AI integration.Scopus© Citations 7 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Human Behavioral Drivers of Sustainable Supply Chains: The Role of Green Talent Management in Ecuadorian MSMEs(MDPI AG, 2025-10-01); ; ; ; This study examines how green talent management (GTM) practices foster sustainable supply chains in micro, small, and medium-sized enterprises (MSMEs) in Quito, Ecuador. It analyzes how sustainable leadership, green organizational culture, and sustainability-oriented training influence employees’ pro-environmental motivation, organizational commitment, and sustainability attitudes, which in turn mediate the adoption of green logistics practices, supply chain efficiency, and organizational resilience. A quantitative design was employed, using survey data from 280 MSMEs analyzed through structural equation modeling. The findings demonstrate that GTM enhances employees’ motivation, commitment, and sustainability attitudes, which act as the primary behavioral mechanisms translating managerial practices into sustainability outcomes. Theoretically, the study integrates Green HRM and supply chain research with multiple organizational behavior theories, including Social Exchange Theory, the AMO model, the Theory of Planned Behavior, and the Resource-Based View. Empirically, it contributes novel evidence from Ecuadorian MSMEs, a context often underexplored in sustainability research. Practically, the study highlights leadership, culture, and training as strategic levers for building greener, more efficient, and more resilient supply chains. The results offer actionable recommendations for MSME managers and policymakers in Ecuador, highlighting the importance of investing in people as the foundation of sustainable competitiveness.Scopus© Citations 3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Exploring the relationship between organizational values and small team performance: A Delphi method application(Centre for Evaluation in Education and Science (CEON/CEES), 2021); ; ; The objective of this article is to examine the relationships between organizational values and the performance indicators of an organization. Two work teams were analyzed in a restaurant. To achieve the objective, a Delphi method was developed that allowed knowing the level of consensus of the members of the teams studied among a group of previously identified values, allowing to identify those values that had greater importance and regulation for each team. Through the Mann-Whitney statistical test, the relationship between values and customer satisfaction and productivity were examined, aspects that were measured in the organization studied for each work shift, where the teams analyzed worked. The research made it possible to prove the relationship between values and customer satisfaction directly and productivity indirectly, demonstrating that the work team showed greater consensus on its values in terms of importance and level of regulation showed better results in the dependent variables analyzed. The research carried out allowed the quantitative validation of the hypothesis that the shared values that regulate the behavior of the employees studied are closely related to the performance indicators.Scopus© Citations 3 - Some of the metrics are blocked by yourconsent settings
Item type:Publication, Managing Physical and Market Constraints to Make Investment Decision: A Methodological Proposal Programmed in MATLAB(SAGE Publications, 2023-07-20); ; ; <jats:p> The need to seek a balance between installed capacities and demand is an imperative for all companies. To respond to this demand, various proposals have been formulated, among which the Theory of Constraints stands out, although the application of these methodologies is always limited by financial availability. This research shows the results of the application of a methodological proposal applied in a pharmaceutical laboratory that allows managing the increase in physical or market constraints, as appropriate, also considering the incidence of capacities in supply chain management. To achieve the proposed objective, programming in MATLAB R2019a is used. The systematic application of the methodology allowed an optimal use of financial availability, an increase in the capacity utilization and an increase in the profits generated during the process. </jats:p>Scopus© Citations 1