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Dr. María del Carmen Valls Martínez
Universidad de Almería (Spain)

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0 Gender Studies
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Reference work
Published: 12 August 2021 in Encyclopedia of Sustainable Management
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ACS Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Rafael Soriano Román. Sustainability Management and Market Risk. Encyclopedia of Sustainable Management 2021, 1 -6.

AMA Style

María Del Carmen Valls Martínez, Pedro Antonio Martín Cervantes, Rafael Soriano Román. Sustainability Management and Market Risk. Encyclopedia of Sustainable Management. 2021; ():1-6.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Rafael Soriano Román. 2021. "Sustainability Management and Market Risk." Encyclopedia of Sustainable Management , no. : 1-6.

Journal article
Published: 27 May 2021 in Mathematics
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This article aims to provide information to public agencies and policymakers on the determinants of health systems and their relationships that influence citizens’ health–disease status. A total of 61 indicators for each of 17 Spanish autonomous communities were collected from the Spanish Ministry of Health, Social Services, and Equality between 2008 and 2017. The applied technique was partial least squares structural equation modeling (PLS-SEM). Concerning health–disease status, an influence of sustainability and performance on the health system was hypothesized. The findings revealed that health system sustainability had a negative effect on health–disease status, measured in terms of disease incidence. However, the relationship between health system performance and health–disease status is positive. Furthermore, health system performance mediates the relationship between sustainability and health–disease status. According to our study, if we consider the opposite poles that make up the definition of health–disease status (well-being and disease), this concept is defined more by the incidence of the negative aspect.

ACS Style

Alicia Ramírez-Orellana; María Del Carmen Valls Martínez; Mayra Grasso. Using Higher-Order Constructs to Estimate Health-Disease Status: The Effect of Health System Performance and Sustainability. Mathematics 2021, 9, 1228 .

AMA Style

Alicia Ramírez-Orellana, María Del Carmen Valls Martínez, Mayra Grasso. Using Higher-Order Constructs to Estimate Health-Disease Status: The Effect of Health System Performance and Sustainability. Mathematics. 2021; 9 (11):1228.

Chicago/Turabian Style

Alicia Ramírez-Orellana; María Del Carmen Valls Martínez; Mayra Grasso. 2021. "Using Higher-Order Constructs to Estimate Health-Disease Status: The Effect of Health System Performance and Sustainability." Mathematics 9, no. 11: 1228.

Reference work
Published: 02 March 2021 in Global Encyclopedia of Public Administration, Public Policy, and Governance
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María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Rafael Soriano Román. Public Management Resources of the NHS. Global Encyclopedia of Public Administration, Public Policy, and Governance 2021, 1 -7.

AMA Style

María Del Carmen Valls Martínez, Pedro Antonio Martín Cervantes, Rafael Soriano Román. Public Management Resources of the NHS. Global Encyclopedia of Public Administration, Public Policy, and Governance. 2021; ():1-7.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Rafael Soriano Román. 2021. "Public Management Resources of the NHS." Global Encyclopedia of Public Administration, Public Policy, and Governance , no. : 1-7.

Journal article
Published: 02 March 2021 in Mathematics
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Investors and practitioners are increasingly concerned with financial assets within the scope of corporate social responsibility (CSR) meaning that, in recent times, such assets have become enshrined in the preferences of the new generations of investors and consumers. Just when the interest of investors was at its highest, SARS-CoV-2 (COVID-19) affected all international financial markets, so that, at first sight, it might seem that the financial assets assigned to CSR should have suffered collapses that were identical to the rest; however, our work shows the opposite, providing a comparative analysis of how the pandemic has affected the financial markets of each continent to demonstrate its outstanding resilience through the use of the Wavelets methodology. We analyzed the global impact of the registered cases of COVID-19 on the Dow Jones Sustainability World Index (DJSWI), the world’s leading indicator of sustainable companies, in addition to six other financial indices selected from each continent. The empirical results of this research show that the worldwide repercussions of the sudden outbreak of SARS-CoV-2 has had a substantially smaller effect on sustainability-related indices compared to the other considered indices. Similarly, the methodology employed allowed the establishment of a chronogram with details of the dating of COVID-19 expansion through the considered countries, a certain gradation in terms of the impact of the pandemic on these stock indices, and certain common guidelines describing their devastating effects on each of the financial markets represented by the indices in this research.

ACS Style

María Valls Martínez; Pedro Martín Cervantes. Testing the Resilience of CSR Stocks during the COVID-19 Crisis: A Transcontinental Analysis. Mathematics 2021, 9, 514 .

AMA Style

María Valls Martínez, Pedro Martín Cervantes. Testing the Resilience of CSR Stocks during the COVID-19 Crisis: A Transcontinental Analysis. Mathematics. 2021; 9 (5):514.

Chicago/Turabian Style

María Valls Martínez; Pedro Martín Cervantes. 2021. "Testing the Resilience of CSR Stocks during the COVID-19 Crisis: A Transcontinental Analysis." Mathematics 9, no. 5: 514.

Journal article
Published: 26 February 2021 in International Journal of Environmental Research and Public Health
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The aim of this empirical research was to provide useful information for health system managers on the costs and investments involved in improving the quality of the National Health Service (NHS) based on patient assessments and from a gender perspective, i.e., without assuming that the perceived experience is identical for men and women. A cross-sectional study of 31 variables was applied using partial least squares structural equation modeling (PLS-SEM) as a research tool. The data were obtained from the Spanish Ministry of Health, Consumption, and Social Welfare for the entire Spanish territory between 2005 and 2018. The influence of expenditure, resource allocation, and mortality was hypothesized with regard to patient satisfaction according to disconfirmation theory. Patient satisfaction reflects clinical effectiveness, and therefore is a measure of health system quality. The results show that women are more sensitive to public investment in health than men, i.e., an increase in the level of spending and resources increases satisfaction more in women. In both sexes, the level of expenditure has a direct influence on patient satisfaction, and therefore on the quality of the healthcare system. It is important to increase spending on primary care, especially on specialized medical care and diagnostic equipment. However, reducing the use of drugs in favor of alternative treatments or therapies is considered to be positive. Likewise, spending has an impact on available resources, and these, in turn, have a positive influence on the level of use and a negative impact on mortality. Resources, especially healthcare staff, nuclear magnetic resonance equipment, and the number of posts in day hospitals, increase patients’ positive perception of the NHS.

ACS Style

María Valls Martínez; Alicia Ramírez-Orellana; Mayra Grasso. Health Investment Management and Healthcare Quality in the Public System: A Gender Perspective. International Journal of Environmental Research and Public Health 2021, 18, 2304 .

AMA Style

María Valls Martínez, Alicia Ramírez-Orellana, Mayra Grasso. Health Investment Management and Healthcare Quality in the Public System: A Gender Perspective. International Journal of Environmental Research and Public Health. 2021; 18 (5):2304.

Chicago/Turabian Style

María Valls Martínez; Alicia Ramírez-Orellana; Mayra Grasso. 2021. "Health Investment Management and Healthcare Quality in the Public System: A Gender Perspective." International Journal of Environmental Research and Public Health 18, no. 5: 2304.

Reference work
Published: 02 November 2020 in Encyclopedia of Business and Professional Ethics
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María Del Carmen Valls Martínez; Salvador Cruz Rambaud; Isabel María Parra Oller. Sustainable and Conventional Banking in Europe. Encyclopedia of Business and Professional Ethics 2020, 1 -6.

AMA Style

María Del Carmen Valls Martínez, Salvador Cruz Rambaud, Isabel María Parra Oller. Sustainable and Conventional Banking in Europe. Encyclopedia of Business and Professional Ethics. 2020; ():1-6.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Salvador Cruz Rambaud; Isabel María Parra Oller. 2020. "Sustainable and Conventional Banking in Europe." Encyclopedia of Business and Professional Ethics , no. : 1-6.

Reference work
Published: 29 October 2020 in Encyclopedia of Business and Professional Ethics
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María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Alicia Ramírez Orellana. Women on Corporate Boards and Sustainable Development. Encyclopedia of Business and Professional Ethics 2020, 1 -5.

AMA Style

María Del Carmen Valls Martínez, Pedro Antonio Martín Cervantes, Alicia Ramírez Orellana. Women on Corporate Boards and Sustainable Development. Encyclopedia of Business and Professional Ethics. 2020; ():1-5.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Alicia Ramírez Orellana. 2020. "Women on Corporate Boards and Sustainable Development." Encyclopedia of Business and Professional Ethics , no. : 1-5.

Reference work
Published: 29 October 2020 in Encyclopedia of Business and Professional Ethics
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ACS Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Alicia Ramírez Orellana. Gender Policies on the Board of Directors and Firms Financial Performance. Encyclopedia of Business and Professional Ethics 2020, 1 -5.

AMA Style

María Del Carmen Valls Martínez, Pedro Antonio Martín Cervantes, Alicia Ramírez Orellana. Gender Policies on the Board of Directors and Firms Financial Performance. Encyclopedia of Business and Professional Ethics. 2020; ():1-5.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Alicia Ramírez Orellana. 2020. "Gender Policies on the Board of Directors and Firms Financial Performance." Encyclopedia of Business and Professional Ethics , no. : 1-5.

Journal article
Published: 26 October 2020 in Mathematics
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The objective of this study was to apply the Sadegh, Ragno, and AghaKouchak (SRA) approach to the field of quantitative finance by analyzing, for the first time, the relationship between price and trading volume of the securities using four stock market indices: DJIA, FOOTSIE100, NIKKEI225, and IBEX35. This procedure is a completely new methodology in finance that consists of the application of a Bayesian framework and the development of a hybrid evolution algorithm of the Markov Chain Monte Carlo (MCMC) method to analyze a large number (26) of parametric copulas. With respect to the DJIA, the Joe’s copula is the one that most efficiently models its succinct dependence structures. One of the copulas included in the SRA approach, the Tawn’s copula, is jointly adjusted to the FOOTSIE100, NIKKEI225, and IBEX 35 indices to analyze the asymmetric relationship between price and trading volume. This adjustment can be considered almost perfect for the NIKKEI225, and a relatively different characterization for the IBEX35 seems to indicate the existence of endogenous patterns in the price and volume.

ACS Style

Pedro Antonio Martín Cervantes; Salvador Cruz Rambaud; María Del Carmen Valls Martínez. An Application of the SRA Copulas Approach to Price-Volume Research. Mathematics 2020, 8, 1864 .

AMA Style

Pedro Antonio Martín Cervantes, Salvador Cruz Rambaud, María Del Carmen Valls Martínez. An Application of the SRA Copulas Approach to Price-Volume Research. Mathematics. 2020; 8 (11):1864.

Chicago/Turabian Style

Pedro Antonio Martín Cervantes; Salvador Cruz Rambaud; María Del Carmen Valls Martínez. 2020. "An Application of the SRA Copulas Approach to Price-Volume Research." Mathematics 8, no. 11: 1864.

Research article
Published: 06 July 2020 in Corporate Social Responsibility and Environmental Management
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Many European countries enacted laws to promote effective gender equality in management positions. Moreover, investors increasingly consider the sustainable valuation of companies in their portfolio selection. Previous research demonstrates the positive relationship between female directors and corporate social performance. The aim of this study is twofold: we examine the extent to which this relationship remains positive according to the level of gender diversity and compare the behaviour in American and European markets, considering that the US has no gender quota. We apply a panel data methodology, with fixed effects, to examine companies listed in the S&P 500 and Euro Stoxx 300 indices during 2015–2019. The results show the increasing influence of women directors up to a limit, both in the American and European markets, and this influence is higher in Europe. This result implies that gender‐diverse boards are favourable to the sustainable behaviour of companies. Therefore, policymakers should promote gender policies.

ACS Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Salvador Cruz Rambaud. Women on corporate boards and sustainable development in the American and European markets: Is there a limit to gender policies? Corporate Social Responsibility and Environmental Management 2020, 27, 1 .

AMA Style

María Del Carmen Valls Martínez, Pedro Antonio Martín Cervantes, Salvador Cruz Rambaud. Women on corporate boards and sustainable development in the American and European markets: Is there a limit to gender policies? Corporate Social Responsibility and Environmental Management. 2020; 27 (6):1.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Pedro Antonio Martín Cervantes; Salvador Cruz Rambaud. 2020. "Women on corporate boards and sustainable development in the American and European markets: Is there a limit to gender policies?" Corporate Social Responsibility and Environmental Management 27, no. 6: 1.

Research article
Published: 20 February 2020 in PLOS ONE
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At the end of the 20th century a new banking model, the so-called ethical banking, emerged becoming the maximum exponent of a socially responsible investment. The financial crisis in 2008 led to a distrust of the conventional financial system and consequently investors began to look with interest this new banking, which only invests in ethical activities and products, with social and environmental criteria, total transparency and a democratic management. The aim of this article is to analyze the economic structure of ethical banking, compared to that of conventional banking, by paying attention to its liquidity, coverage and solvency. Specifically, We compare the financial statements of Triodos Bank, the main European ethical bank belonging to the Global Alliance for Banking on Values, with two of the main conventional banks of each of the five countries in Europe in which it operates. To do this, we apply a financial and economic analysis to the period from 2015 to 2018, the means difference test and analysis of variance on an array of financial ratios and, finally, probit regressions. The results reveal that ethical banking is growing more than conventional banking and it presents greater liquidity and solvency, although, in general terms, its profitability is not higher. In conclusion, both savers and investors have guarantees that their savings are invested not only in a responsible but also in a confident way in ethical banking.

ACS Style

María Del Carmen Valls Martínez; Salvador Cruz Rambaud; Isabel María Parra Oller. Sustainable and conventional banking in Europe. PLOS ONE 2020, 15, e0229420 .

AMA Style

María Del Carmen Valls Martínez, Salvador Cruz Rambaud, Isabel María Parra Oller. Sustainable and conventional banking in Europe. PLOS ONE. 2020; 15 (2):e0229420.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Salvador Cruz Rambaud; Isabel María Parra Oller. 2020. "Sustainable and conventional banking in Europe." PLOS ONE 15, no. 2: e0229420.

Journal article
Published: 04 December 2019 in International Journal of Environmental Research and Public Health
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The aim of this article was to determine which key indicators influence patient satisfaction with the Spanish NHS to provide useful information for policy decision-making. A total of 33 variables for each of the 17 Spanish autonomous communities were collected from the statistical portal of the Spanish Ministry of Health, Social Services, and Equality between 2005 and 2016. A cross-sectional study was applied using Partial Least Squares to a Structural Equation Model (PLS-SEM). The influence of expenditures, resource allocation, and safety were hypothesized about patient satisfaction. Gross Domestic Product (GDP) and life expectancy were used as control variables. Moreover, the influence of resource allocation on use was tested. The model explained 57.1% of patient satisfaction with the Spanish NHS. It was positively influenced mainly by resource allocation and expenditures, followed by safety and life expectancy. Additionally, resources directly influenced the level of use. The number of hospital beds, hemodialysis equipment, rate of adverse drug reactions, and expenditure positively influenced patient satisfaction. In contrast, the number of posts in day hospitals, the hospital infection rate, and the percentage of pharmacy spending negatively influenced patient satisfaction.

ACS Style

María Del Carmen Valls Martínez; Alicia Ramírez-Orellana. Patient Satisfaction in the Spanish National Health Service: Partial Least Squares Structural Equation Modeling. International Journal of Environmental Research and Public Health 2019, 16, 4886 .

AMA Style

María Del Carmen Valls Martínez, Alicia Ramírez-Orellana. Patient Satisfaction in the Spanish National Health Service: Partial Least Squares Structural Equation Modeling. International Journal of Environmental Research and Public Health. 2019; 16 (24):4886.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Alicia Ramírez-Orellana. 2019. "Patient Satisfaction in the Spanish National Health Service: Partial Least Squares Structural Equation Modeling." International Journal of Environmental Research and Public Health 16, no. 24: 4886.

Journal article
Published: 01 September 2019 in Women's Studies International Forum
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María Del Carmen Valls Martínez; Salvador Cruz Rambaud. Women on corporate boards and firm's financial performance. Women's Studies International Forum 2019, 76, 1 .

AMA Style

María Del Carmen Valls Martínez, Salvador Cruz Rambaud. Women on corporate boards and firm's financial performance. Women's Studies International Forum. 2019; 76 ():1.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Salvador Cruz Rambaud. 2019. "Women on corporate boards and firm's financial performance." Women's Studies International Forum 76, no. : 1.

Erratum
Published: 19 August 2019 in Physica A: Statistical Mechanics and its Applications
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ACS Style

Salvador Cruz Rambaud; Isabel María Parra Oller; María Del Carmen Valls Martínez. Erratum to “The amount-based deformation of the q-exponential discount function: A joint analysis of delay and magnitude effects” [Physica A 508 (2018) 788–796]. Physica A: Statistical Mechanics and its Applications 2019, 547, 122081 .

AMA Style

Salvador Cruz Rambaud, Isabel María Parra Oller, María Del Carmen Valls Martínez. Erratum to “The amount-based deformation of the q-exponential discount function: A joint analysis of delay and magnitude effects” [Physica A 508 (2018) 788–796]. Physica A: Statistical Mechanics and its Applications. 2019; 547 ():122081.

Chicago/Turabian Style

Salvador Cruz Rambaud; Isabel María Parra Oller; María Del Carmen Valls Martínez. 2019. "Erratum to “The amount-based deformation of the q-exponential discount function: A joint analysis of delay and magnitude effects” [Physica A 508 (2018) 788–796]." Physica A: Statistical Mechanics and its Applications 547, no. : 122081.

Journal article
Published: 01 August 2019 in Corporate Social Responsibility and Environmental Management
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ACS Style

María Del Carmen Valls Martínez; Salvador Cruz Rambaud; Isabel María Parra Oller. Gender policies on board of directors and sustainable development. Corporate Social Responsibility and Environmental Management 2019, 1 .

AMA Style

María Del Carmen Valls Martínez, Salvador Cruz Rambaud, Isabel María Parra Oller. Gender policies on board of directors and sustainable development. Corporate Social Responsibility and Environmental Management. 2019; ():1.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Salvador Cruz Rambaud; Isabel María Parra Oller. 2019. "Gender policies on board of directors and sustainable development." Corporate Social Responsibility and Environmental Management , no. : 1.

Journal article
Published: 31 May 2019 in Studies of Applied Economics
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La mayor parte de la evidencia empírica sobre la elección de recompensas a lo largo del tiempo ha demostrado que la tasa de descuento utilizada no es constante, tal y como fue sugerido por Samuelson (1937). En efecto, la tasa de descuento puede depender del tiempo (pudiendo aparecer el efecto impaciencia decreciente, la estacionariedad o la impaciencia creciente) o de la cuantía (mostrando el efecto magnitud, la separabilidad o la reversión del efecto magnitud). Una función de descuento, capaz de explicar casi todos estos estados de impaciencia con respecto al tiempo y la cuantía, es la denominada función q-exponencial deformada por la cuantía, recientemente incorporada al ámbito de la Econofísica. El objetivo principal de este artículo es la aplicación del EM-index y de una nueva versión del factor hiperbólico a esta novedosa función de descuento, y así comprobar su validez. Estos índices constituyen nuestra propuesta para medir los efectos magnitud y plazo, y ambos están inspirados en el factor hiperbólico introducido por Rohde (2010).

ACS Style

Salvador Cruz Rambaud; Isabel María Parra Oller; María Del Carmen Valls Martínez. Applying the ME-index and the hyperbolic factor to the q-exponential discount function deformed by the amount. Studies of Applied Economics 2019, 37, 82 -95.

AMA Style

Salvador Cruz Rambaud, Isabel María Parra Oller, María Del Carmen Valls Martínez. Applying the ME-index and the hyperbolic factor to the q-exponential discount function deformed by the amount. Studies of Applied Economics. 2019; 37 (2):82-95.

Chicago/Turabian Style

Salvador Cruz Rambaud; Isabel María Parra Oller; María Del Carmen Valls Martínez. 2019. "Applying the ME-index and the hyperbolic factor to the q-exponential discount function deformed by the amount." Studies of Applied Economics 37, no. 2: 82-95.

Journal article
Published: 27 November 2018 in Contaduría y Administración
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Este trabajo estudia, desde un punto de vista financiero, el funcionamiento del sistema de depósitos y de créditos en la cooperativa bancaria ética sueca JAK, calculando cuál es el coste efectivo real de una operación de préstamo. Los resultados ponen de manifiesto que el original modelo de esta autodenominada “banca libre de interés” sí supone en realidad para el prestatario un coste efectivo real en sus préstamos. Además, se muestra cómo, en circunstancias normales, este coste es muy superior al promedio del coste ofertado por los bancos tradicionales. Ello es debido a que JAK exige un depósito no remunerado de cuantía superior, debido a la aplicación de un coeficiente reductor, e igual plazo al del préstamo concedido. En consecuencia, considerando solamente criterios económicos personales, este tipo de banca no resulta atractiva. No obstante, si se tienen en cuenta los beneficios sociales, así como la posibilidad de ceder derechos de préstamo (puntos de ahorro positivos) a otros miembros, entonces su utilidad es considerable desde un punto de vista económico y social.

ACS Style

María Del Carmen Valls Martínez; Alicia Ramírez Orellana; Emilio Abad Segura. Banca ética cooperativa: un análisis de las innovadoras operaciones de amortización de JAK Medlemsbank. Contaduría y Administración 2018, 64, 130 .

AMA Style

María Del Carmen Valls Martínez, Alicia Ramírez Orellana, Emilio Abad Segura. Banca ética cooperativa: un análisis de las innovadoras operaciones de amortización de JAK Medlemsbank. Contaduría y Administración. 2018; 64 (4):130.

Chicago/Turabian Style

María Del Carmen Valls Martínez; Alicia Ramírez Orellana; Emilio Abad Segura. 2018. "Banca ética cooperativa: un análisis de las innovadoras operaciones de amortización de JAK Medlemsbank." Contaduría y Administración 64, no. 4: 130.

Journal article
Published: 02 October 2018 in Anales del Sistema Sanitario de Navarra
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M.C. Valls Martínez. Patient satisfaction in the Spanish National Health System. Anales del Sistema Sanitario de Navarra 2018, 1 .

AMA Style

M.C. Valls Martínez. Patient satisfaction in the Spanish National Health System. Anales del Sistema Sanitario de Navarra. 2018; ():1.

Chicago/Turabian Style

M.C. Valls Martínez. 2018. "Patient satisfaction in the Spanish National Health System." Anales del Sistema Sanitario de Navarra , no. : 1.

Journal article
Published: 01 October 2018 in Heliyon
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The objective of this paper is to design a loan repayment plan adapted to the financed company with the aim to avoid a possible situation of illiquidity. More specifically, in this paper the sequence of payments which amortizes a loan is determined according to the distribution of the future income expected by the borrower. To do this, we will start from the concept of a continuous distribution of capital or, equivalently, a continuous annuity. The continuous distribution of capital will be derived from a continuous distribution of probability, to then obtain a discrete annuity which fits the future income of the debtor. On the other hand, it is noteworthy the analysis of the particular case of financial transactions with interest periods of different amplitude, which can facilitate the adjustment of the sequence of instalments to the timing of the real income of the borrower in loan transactions.

ACS Style

Salvador Cruz Rambaud; María Del Carmen Valls Martínez; Emilio Abad Segura. Loan transactions associated to continuous distributions of capital. Heliyon 2018, 4, e00859 .

AMA Style

Salvador Cruz Rambaud, María Del Carmen Valls Martínez, Emilio Abad Segura. Loan transactions associated to continuous distributions of capital. Heliyon. 2018; 4 (10):e00859.

Chicago/Turabian Style

Salvador Cruz Rambaud; María Del Carmen Valls Martínez; Emilio Abad Segura. 2018. "Loan transactions associated to continuous distributions of capital." Heliyon 4, no. 10: e00859.

Journal article
Published: 01 October 2018 in Physica A: Statistical Mechanics and its Applications
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The magnitude effect is one of the main anomalies shown by people in the context of intertemporal choice. Thus, the main objective of this paper is to provide a general procedure to obtain a general discount function able to explain this paradox By this methodology, we will to mathematically deform time in a discount function, more specifically to multiply the variable “time” by a certain power of the reward amount. However, in most cases, the existing literature presents some ad hoc discounting models to describe a unique anomaly. In order to solve this limitation, we will apply the former methodology to the q-exponential discount function introduced by Cajueiro (2006). In this way, we will obtain a mathematical setting able to jointly explain the delay and the magnitude effects, depending on the values of parameters q and αα involved in the model. Moreover, another advantage of this amount-based q-exponential function is its convergence to the time-deformed exponential, hyperbolic and linear discounting, depending on the value of q in the joint interval (−∞,1)∪(1,+∞)(−∞,1)∪(1,+∞).

ACS Style

Salvador Cruz Rambaud; Isabel María Parra Oller; María Del Carmen Valls Martínez. The amount-based deformation of the q-exponential discount function: A joint analysis of delay and magnitude effects. Physica A: Statistical Mechanics and its Applications 2018, 508, 788 -796.

AMA Style

Salvador Cruz Rambaud, Isabel María Parra Oller, María Del Carmen Valls Martínez. The amount-based deformation of the q-exponential discount function: A joint analysis of delay and magnitude effects. Physica A: Statistical Mechanics and its Applications. 2018; 508 ():788-796.

Chicago/Turabian Style

Salvador Cruz Rambaud; Isabel María Parra Oller; María Del Carmen Valls Martínez. 2018. "The amount-based deformation of the q-exponential discount function: A joint analysis of delay and magnitude effects." Physica A: Statistical Mechanics and its Applications 508, no. : 788-796.