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Abstract
This paper suggests the possibility of incorporating the methodology of fuzzy logic theory into Harrod’s economic growth model, a classic model of economic dynamics for studying the growth of a developing economy based on the assumption that an economy with only savings and investment income is in equilibrium when savings are equal to investment. This model was the first precursor to exogenous growth models, which in turn gave rise to endogenous growth models. This article therefore represents a first step towards introducing fuzzy logic into economic growth models. The study concerned considers consumption and savings to depend on income by means of uncertain factors, and investment to depend on the variation of income through the accelerator factor, which we consider uncertain. These conditions are used to determine the equilibrium growth rate of income and investment, as well as the uncertain values for these variables in terms of fuzzy numbers. As a result, the new model is shown to expand the classical model by incorporating uncertainty into its variables.
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2
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Sustainable Development Goals Analysis with Ordered Weighted Average Operators. SUSTAINABILITY 2021. [DOI: 10.3390/su13095240] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The present research proposes a new method to analyze the sustainable development goals (SDGs) index using ordered weighted average (OWA) operators. To develop this method, five experts evaluated and designated the relative importance of each of the 17 SDGs defined by the United Nations (UN), and with the use of the OWA and prioritized OWA (POWA) operators, rankings were generated. With the results, it is possible to visualize that the ranking of countries can change depending on the weights related to each SDG because the OWA and POWA operator methods can capture the uncertainty of the phenomenon.
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3
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Linares-Mustarós S, Ferrer-Comalat JC, Corominas-Coll D, Merigó JM. The weighted average multiexperton. Inf Sci (N Y) 2021. [DOI: 10.1016/j.ins.2020.08.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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4
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Abstract
In the study presented here, fuzzy logic was used to analyze the behavior of a model of economic dynamics that assumes income to be in equilibrium when it is composed of consumption and investment, that is, when savings and investment are equal. The study considered that consumption and savings depend on the income of the previous period through uncertain factors, and, at the same time, that investment is an uncertain magnitude across various periods, represented as a fuzzy number with a known membership function. Under these conditions, the model determines the factor of income growth and investments required to maintain equilibrium, as well as the uncertain values of income for the different periods, expressed through fuzzy numbers. The study also analyzes the conditions for their convergence and the fuzzy value that income represents in equilibrium.
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Flores-Sosa M, Avilés-Ochoa E, Merigó JM. Induced OWA operators in linear regression. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-179642] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
| | | | - José M. Merigó
- School of Information, Systems and Modelling, Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo, NSW, Australia
- Department of Management Control and Information Systems, School of Economics and Business, University of Chile, Santiago, Chile
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López C, Linares-Mustarós S, Viñas J. The use of fuzzy mathematical tools for local public services outsourcing according to typology. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-179631] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Carles López
- Department of Business Administration, University of Girona, Campus Montilivi, Girona, Catalonia, Spain
| | - Salvador Linares-Mustarós
- Department of Business Administration, University of Girona, Campus Montilivi, Girona, Catalonia, Spain
| | - Josep Viñas
- Department of Business Administration, University of Girona, Campus Montilivi, Girona, Catalonia, Spain
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Amirbagheri K, Merigó JM, Guitart-Tarrés L, Nuñez-Carballosa A. OWA operators in the calculation of the average green-house gases emissions. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-179635] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Keivan Amirbagheri
- Department of Industrial Organization – Academic Area, Escola Universitària Salesiana de Sarrià, Paseo Sant Joan Bosco, Barcelona, Spain
- Department of Economics and Business, Faculty of Economics and Business, University of Barcelona, Barcelona, Spain
| | - José M. Merigó
- Department of Management Control and Information Systems, School of Economics and Business, University of Chile, Santiago, Chile
- School of Systems, Management and Leadership, Faculty of Engineering and Information Technology, University of Technology Sydney, NSW, Australia
| | - Laura Guitart-Tarrés
- Department of Economics and Business, Faculty of Economics and Business, University of Barcelona, Barcelona, Spain
| | - Ana Nuñez-Carballosa
- Department of Economics and Business, Faculty of Economics and Business, University of Barcelona, Barcelona, Spain
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Ferrer-Comalat JC, Corominas-Coll D, Linares-Mustarós S. Fuzzy logic in economic models. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-179627] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Joan Carles Ferrer-Comalat
- Department of Business Administration, University of Girona, Campus Montilivi, Girona, Catalonia (Spain)
| | - Dolors Corominas-Coll
- Department of Business Administration, University of Girona, Campus Montilivi, Girona, Catalonia (Spain)
| | - Salvador Linares-Mustarós
- Department of Business Administration, University of Girona, Campus Montilivi, Girona, Catalonia (Spain)
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Merigó JM, Linares-Mustaros S, Ferrer-Comalat JC. Fuzzy systems in management and information science. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2020. [DOI: 10.3233/jifs-179625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- José M. Merigó
- Department of Management Control and Information Systems, School of Economics and Business, University of Chile, Av. Diagonal 257, 8330015 Santiago, Chile
- School of Systems, Management, and Leadership, Faculty of Engineering and Information Technology, University of Technology Sydney, Ultimo 2007, NSW, Australia
| | - Salvador Linares-Mustaros
- Department of Business Administration, University of Girona, Campus Montilivi, University of Girona street 10, 17071 Girona, Catalonia (Spain)
| | - Joan Carles Ferrer-Comalat
- Department of Business Administration, University of Girona, Campus Montilivi, University of Girona street 10, 17071 Girona, Catalonia (Spain)
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A Comparative Assessment of Graphic and 0–10 Rating Scales Used to Measure Entrepreneurial Competences. AXIOMS 2020. [DOI: 10.3390/axioms9010021] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This article presents an empirical comparative assessment of the measurement quality of two instruments commonly used to measure fuzzy characteristics in computer-assisted questionnaires: a graphic scale (a line production scale using a slider bar) and an endecanary scale (a 0–10 rating scale using radio buttons). Data are analyzed by means of multitrait–multimethod models estimated as structural equation models with a mean and covariance structure. For the first time in such research, the results include bias, valid variance, method variance, and random error variance. The data are taken from a program that assesses entrepreneurial competences in undergraduate Economics and Business students by means of questionnaires administered on desktop computers. Neither of the measurement instruments was found to be biased with respect to the other, meaning that their scores are comparable. While both instruments achieve valid and reliable measurements, the reliability and validity are higher for the endecanary scale. This study contributes to the still scarce literature on fuzzy measurement instruments and on the comparability and relative merits of graphic and discrete rating scales on computer-assisted questionnaires.
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Zahedi Khameneh A, Kilicman A. A fuzzy majority-based construction method for composed aggregation functions by using combination operator. Inf Sci (N Y) 2019. [DOI: 10.1016/j.ins.2019.07.090] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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