Alberto Díaz, Pablo Gervás, Antonio García and Inmaculada Chacón
Through an evaluation of system performance and user satisfaction for the Mercurio system, considers the general applicability and usefulness of different methods of specifying…
Abstract
Through an evaluation of system performance and user satisfaction for the Mercurio system, considers the general applicability and usefulness of different methods of specifying user interest for the general case of digital news services. Outlines the specific characteristics distinguishing such systems from more general information systems and discusses their effect. Proposes an evaluation blueprint for them starting from information retrieval procedures, existing work on search engine evaluation, and a close study of the working principles and the required evaluation according to the particular properties and conditions of the services under consideration. Presents and discusses actual evaluation results for system tests based both on real users and customised test cases. Conclusions cover the nature of the information handling tasks that digital news services are faced with, the relative merits of sections, categories and keywords with respect to this particular set of tasks, and the risks of careless application of recall and precision measures in systems such as these.
Details
Keywords
Zaida Asencios-Gonzalez, Arístides Vara-Horna, J. Brad McBride, Inés Santi-Huaranca, Raquel Chafloque-Céspedes and Alberto Díaz Rosillo
The purpose of this paper is to determine the prevalence of economic violence against women, specifically in formal sector micro-firms managed by women in Peru, a key Latin…
Abstract
Purpose
The purpose of this paper is to determine the prevalence of economic violence against women, specifically in formal sector micro-firms managed by women in Peru, a key Latin American emerging market. Additionally, the authors have identified the demographic characteristics of the micro-firms, financing and credit associated with women who suffer economic violence.
Design/methodology/approach
In this study, a structured questionnaire was administered to a representative sample nationwide (357 female micro-entrepreneurs).
Findings
The authors found that 22.2 percent of female micro-entrepreneurs have been affected by economic violence at some point in their lives, while at the same time 25 percent of respondents have been forced by their partner to obtain credit against their will. Lower education level, living with one’s partner, having children, business location in the home, lower income, not having access to credit, not applying credit to working capital needs, late payments and being forced to obtain credit against one’s will were all factors associated with economic violence. Furthermore, the results showed a significant correlation between suffering economic violence and being a victim of other types of violence (including psychological, physical or sexual); the highest correlation was with serious physical violence (r=0.523, p<0.01).
Research limitations/implications
A limitation of this study is that the authors measured economic violence only in terms of misappropriation or theft of funds from the business, but not in terms of exacting control over economic resources, which can be a way of depriving the micro-entrepreneur of her autonomy in the management of the business.
Practical implications
The authors hope that the findings and conclusions reported here might open a renewed debate among academia, financial service providers, micro-firms, civil society and the public sector, providing a conceptual framework and a starting point to design effective, integrated and inter-sectoral prevention efforts.
Social implications
The authors recommend that efforts to reduce intimate partner violence be strengthened, taking into account the issue of gender inequality. It is not sufficient that social policy solely be designed to eliminate violence.
Originality/value
Previous research on gender violence has tended to examine the nature and causes of psychological, physical and sexual violence; this study, however, intends to contribute to the understanding of economic gender violence in the context of formal sector small business in a Latin American emerging market.
Details
Keywords
Biman Das, Alberto Garcia‐Diaz and Clarence L. Hough
For machine‐paced operations a two‐factor monetary incentive planis developed by employing production quantity output and productionwaste as criteria for incentive earnings. The…
Abstract
For machine‐paced operations a two‐factor monetary incentive plan is developed by employing production quantity output and production waste as criteria for incentive earnings. The plan takes into account machine time allowance and increased operator work pace for manual work for establishing standards in a machine‐paced operation. The two incentive earning factors are given proper weights in terms of their relative economic importance. The weights are determined by comparing possible labour and material costs savings when the operators perform at incentive pace level. To demonstrate the working of the proposed monetary incentive plan an illustrative example is presented.
Details
Keywords
Biman Das and Alberto Garcia‐Diaz
The lost time arising from travelling and waiting of the production operators and manufacturing inspectors at the tool and gauge crib counters can be considerable in a large…
Abstract
The lost time arising from travelling and waiting of the production operators and manufacturing inspectors at the tool and gauge crib counters can be considerable in a large manufacturing plant. This travelling and waiting time can be eliminated or minimized by consolidating the tool and gauge cribs near the master crib, extending the totebox system and providing a dispatching system. In the proposed system the tools and gauges will be delivered at the workstation by the dispatchers. The new system would improve the utilization of the tool and gauge crib attendant’s time and reduce the tool and gauge inventory. The case problem revealed that a net annual labor cost saving of about $320,600 and a saving of $242,100 from the reduction of tool and gauge inventory could be achieved. The additional floor space requirement would be about 1,700sq. ft and the implementation cost would be about $144,500.
Details
Keywords
Biman Das, Alberto Garcia‐Diaz, Corinne A. MacDonald and Kalyan K. Ghoshal
The purpose of this paper is to develop a computer simulation model to evaluate increasing versus decreasing mean operation times assembly line arrangement for normal and…
Abstract
Purpose
The purpose of this paper is to develop a computer simulation model to evaluate increasing versus decreasing mean operation times assembly line arrangement for normal and exponential distributions and the variances equal to 1 and 16.
Design/methodology/approach
The model was developed on the basis of a realistic case problem and applied to a six‐station assembly line. The evaluation criteria were: the minimization of the total elapsed time; the maximization of the average percentage of working time; and the minimization of the average time in the system.
Findings
The increasing mean operation times line arrangement is superior to the decreasing mean operation times line arrangement for the normal and exponential distributions and the variances equal to 1 and 16, in terms of the total elapsed time and the average percentage of the working time evaluation criteria. The decreasing mean operation times lines is marginally superior to the increasing operation times line for the normal distribution for the variances equal to 1 and 16, in terms of the average time in the system evaluation criterion. The above inference can be made for the exponential distribution for the variance 16, but no definitive conclusion can be made for the variance 1. Overall, the increasing mean operation times line arrangement has proven to be superior to the decreasing operation times line arrangement for both the stated distributions and variances, in terms of the important evaluation criteria.
Originality/value
The paper contributes to the computer simulation approach to solving assembly line problems that deal with the impact of normally and exponentially distributed operation times, with variances equal to 1 and 16, on the increasing and decreasing mean operation times assembly line arrangements.
Details
Keywords
Biman Das, Jesus M. Sanchez‐Rivas, Alberto Garcia‐Diaz and Corinne A. MacDonald
The purpose of this paper is to develop a computer simulation model to evaluate the bowl phenomenon and the allocation at the end of the line of stations with either greater mean…
Abstract
Purpose
The purpose of this paper is to develop a computer simulation model to evaluate the bowl phenomenon and the allocation at the end of the line of stations with either greater mean operation times or higher variability of operation times.
Design/methodology/approach
The model was developed on the basis of a realistic case problem and applied to a six‐station assembly line. The evaluation criteria were the: minimization of the total elapsed time; maximization of the average percentage of working time; and minimization of the average time in the system.
Findings
The performance of an assembly line with independently normally distributed operation times could be improved by applying the bowl phenomenon. The allocation of large operation mean times to stations located near the end of the line did not produce improved results. Instead a more balanced allocation proved to be more significantly effective. On the other hand, the assignment of larger variability of operation times to the stations near the end of the line improved the performance of the assembly line.
Originality/value
The investigation contributed to the computer simulation approach to solving assembly line problems that dealt with the impact of normally distributed operation times on the bowl phenomenon and assembly lines with increasing mean operation times and higher variability of operation times at the end of the line of stations.
Details
Keywords
Juan Carlos Diaz Vasquez, Jaime Alberto Ospina Gallo and Margarita María Montoya Peláez
The purpose of this chapter is to describe the First Contact Pilot Program carried out in collaborative work between ISAGEN, a partly government-owned firm within the energy…
Abstract
Purpose
The purpose of this chapter is to describe the First Contact Pilot Program carried out in collaborative work between ISAGEN, a partly government-owned firm within the energy sector, and Universidad EAFIT, a private university in the city of Medellin.
Design/methodology/approach
The First Contact Pilot Program was developed following an existing model implemented at the Universidad Externado de Colombia, a private university located in Bogotá. Nevertheless this pilot program took methodology elements from ISAGEN and its suppliers relationship policy. Additionally content concerning the Global Compact and its principles was provided within the subject “Senior Seminar.” Students from this subject were voluntary participants in the pilot program.
Findings
The chapter provides a brief survey conducted by ISAGEN wherein some findings are visible. In this survey the First Contact Pilot Program participating entrepreneurs were asked about their motivations in order to voluntarily be part of the program and they recognized the great importance of this initiative for their businesses to change lots of practices and to become part of a global market culture.
Research limitations/implications
This first version of the program was at the same time a way to invite other big organizations in the city of Medellin to take part in such activities. Massive participation, not only from the big players but also from small and medium enterprises, is necessary to achieve the goal of spreading the Global Compact’s principles. In the longer run it assures the creation of a fairer market place where all players in all sizes contribute to respect and promote a core of best practices in business.
Practical implications
One of the most remarkable implications by designing and implementing the pilot program was the fact of having interactions between International Business Students and local small and medium firm managers together talking about the Global Compact and the way it may improve many aspects within the firm and toward stakeholders.
Originality/value of the chapter
A particular feature of this chapter to be considered as original and valuable is the establishing of networks for the dissemination of the Global Compact’s principles. Collaborative work among private and public sectors and with higher education institutions in fostering the transformation of business practices to achieve a fairer global market place constitutes the aim of this particular pilot program. At the same time this pilot program embodies the spirit of the UN PRME in giving the students of International Business the opportunity to develop their capabilities to become the future managers aware of the sustainability value for business.
Details
Keywords
This paper aims to provide information about the structure of collaborative work among Argentinian economics. The study provides specific applied research of social network…
Abstract
Purpose
This paper aims to provide information about the structure of collaborative work among Argentinian economics. The study provides specific applied research of social network analysis focus on this profession in this specific country.
Design/methodology/approach
The contribution opted for applying social network analysis tools to papers presented in a congress and published in its proceedings. The authors focus in detecting main actors, groups of co-authorship, professionals acting as bridges between groups and differences between genders.
Findings
The paper provides empirical insights about how co-authorship has evolved between Argentine economists. The authors find that structural properties of the network, main actors, both male and female, main universities or center that affiliates them, a gender gap that might be closing out.
Research limitations/implications
The paper focuses on the network for the period 1964-2014 without a more detailed dynamic. It also does not explain main topics worked by the authors.
Practical implications
The work provides knowledge about how groups are created in Economics in Argentina, how cooperation has evolved and what has been the role of women in this development. It also shows how different departments and entities collaborate with diverse success in the creation of new knowledge in Economics in Argentina.
Originality/value
The paper works with data from a source of information non-previously studied and contributes in explaining a particular type of collaborative work in a profession in Argentina.
Details
Keywords
Juan Carlos Quiroz-Flores, Renato Jose Aguado-Rodriguez, Edisson Andree Zegarra-Aguinaga, Martin Fidel Collao-Diaz and Alberto Enrique Flores-Perez
This paper aims to find the best tools to influence the improvement of sustainability in food supply chains (FSCs) by conducting a systematic review of articles. The reader will…
Abstract
Purpose
This paper aims to find the best tools to influence the improvement of sustainability in food supply chains (FSCs) by conducting a systematic review of articles. The reader will learn how the different industry 4.0 tools (I4.0T) benefit the FSC and the limitations of each tool.
Design/methodology/approach
A review of 436 articles published during the period 2019 to 2022 referenced in the Scopus and Web of Science databases was performed. The review was limited to articles published in English and directly related to Industry 4.0, circular economy and sustainability in the food supply chain.
Findings
The results show different contributions of I4.0, with some being more influential than others in improving sustainability in FSCs; for example, Internet of Things and Blockchain have been shown to contribute more toward transparency, traceability, process optimization and waste reduction.
Originality/value
The paper's contribution consisted of ranking according to their importance and the I4.0T that affect sustainability in FSCs by classifying the aspects of each tool and the sustainability factors through a categorization by the Analysis Hierarchy Process.