10 research outputs found

    Use of production functions in assessing the profitability of shares of insurance companies

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    In this study the production functions (Cobb-Douglas, Zener-Rivanker, and the transcendental production function) have been used to assess the profitability of insurance companies, by reformulating these nonlinear functions based on the introduction of a set of variables that contribute to increase the explanatory capacity of the model. Then the best production function commensurate with the nature of the variable representing the profitability of insurance companies was chosen, to use it to assess the efficiency of their profitability versus the use of different factors of production and thus the possibility of using it in forecasting. It was found that the proposed model of the production function "Zener-Rivanker" is the best production functions representing the profitability of the Tawuniya and Bupa Insurance Companies. The proposed model of the Cobb-Douglas production function is suitable for the results of both Enaya and Sanad Cooperative Insurance Companies. The explanatory capacity of the production functions was also increased when the proposed variables were added (net subscribed premiums-net claims incurred)

    Enhancement strategies for transdermal drug delivery systems: current trends and applications

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    Approximate Solution of Fractional Nonlinear Partial Differential Equations by the Legendre Multiwavelet Galerkin Method

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    The Legendre multiwavelet Galerkin method is adopted to give the approximate solution for the nonlinear fractional partial differential equations (NFPDEs). The Legendre multiwavelet properties are presented. The main characteristic of this approach is using these properties together with the Galerkin method to reduce the NFPDEs to the solution of nonlinear system of algebraic equations. We presented the numerical results and a comparison with the exact solution in the cases when we have an exact solution to demonstrate the applicability and efficiency of the method. The fractional derivative is described in the Caputo sense

    Investigating Performance Outcomes under Institutional Pressures and Environmental Orientation Motivated Green Supply Chain Management Practices

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    Purpose: The study investigates the role of institutional pressures and environmental orientation in implementing green supply chain practices (GSCPs) in firms. The aim is to construct a comprehensive model based on institutional theory (InT) and resource-based view (RBV) that will help study the effect of GSCPs on performance-based outcomes of industrial firms. Study Design: The study adopted a cross-sectional design, and data were collected from 351 supply chain management professionals from different manufacturing companies in Saudi Arabia. Furthermore, a questionnaire was structured to collect data, and the hypothesis of the study was tested using the PLS-SEM modeling. Findings: The study findings showed a significant effect of institutional pressure on GSCPs. Also, another significant impact of environmental orientation on GSCPs was noted. Lastly, GSCPs of manufacturing companies have a significantly positive effect on economic and ecological performances. Originality: This paper is one of the first to include institutional theory, the resource-based view, institutional pressures, environmental orientation, GSCPs, and company performances outcomes. Also, the paper provides details about performance outcomes by scattering Green Supply Chain Management (GSCM) practices and gives direction to managers for the successful implementation of these practices

    Investigating Performance Outcomes under Institutional Pressures and Environmental Orientation Motivated Green Supply Chain Management Practices

    No full text
    Purpose: The study investigates the role of institutional pressures and environmental orientation in implementing green supply chain practices (GSCPs) in firms. The aim is to construct a comprehensive model based on institutional theory (InT) and resource-based view (RBV) that will help study the effect of GSCPs on performance-based outcomes of industrial firms. Study Design: The study adopted a cross-sectional design, and data were collected from 351 supply chain management professionals from different manufacturing companies in Saudi Arabia. Furthermore, a questionnaire was structured to collect data, and the hypothesis of the study was tested using the PLS-SEM modeling. Findings: The study findings showed a significant effect of institutional pressure on GSCPs. Also, another significant impact of environmental orientation on GSCPs was noted. Lastly, GSCPs of manufacturing companies have a significantly positive effect on economic and ecological performances. Originality: This paper is one of the first to include institutional theory, the resource-based view, institutional pressures, environmental orientation, GSCPs, and company performances outcomes. Also, the paper provides details about performance outcomes by scattering Green Supply Chain Management (GSCM) practices and gives direction to managers for the successful implementation of these practices

    A first update on mapping the human genetic architecture of COVID-19

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    A second update on mapping the human genetic architecture of COVID-19

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    A first update on mapping the human genetic architecture of COVID-19

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