International Journal of Economics and Statistics

E-ISSN: 2309-0685
Volume 8, 2020

Notice: As of 2014 and for the forthcoming years, the publication frequency/periodicity of NAUN Journals is adapted to the 'continuously updated' model. What this means is that instead of being separated into issues, new papers will be added on a continuous basis, allowing a more regular flow and shorter publication times. The papers will appear in reverse order, therefore the most recent one will be on top.

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Volume 8, 2020

Title of the Paper: Women in Education sector: Monitoring and Evaluation of the Impact of Education Policies on Women Empowerment


Authors: Samuel Mwangi Wanjiku, Annie Wanjugu Karobia, Jacqueline Karimi Njeru

Pages: 63-73

Abstract: One of the perspectives of delving women in academia is by using Sustainable Development Goal (SDG) goal 4 ‘Ensure inclusive and equitable quality education and promote lifelong learning opportunities for all’, to measure the SDG number 5, ‘Achieve gender equality and empower all women and girls’ - and the vice versa. The extent of Millennium Development Goals (MDGs) realization provides lessons that the current and future education policies and programs are/ will be founded on. To achieve a thorough analysis, consistently accurate and relevant data is requisite and essential to monitoring and evaluating the real effects of education policies on women empowerment. At a glance, the average children enrolment in primary education rose remarkably between 2000-2015 in most developing countries indicating the extent of achievement of MDGs. Shifting from these quantitative evaluation results, this study outlines qualitative perspectives of measuring women in leadership in the education sector as an approach of empowerment. A key concern is how the generation of data through monitoring and evaluation enables fast-tracking of the effects of the policies on women empowerment in the education system. In this article, we focus on three school management variables as measures of women empowerment: 1) the nature of both internal and external audits to ensure accountability and transparency; 2) professionalism enhancement (nature of the In-service education training), and 3) the analysis of resource needs in empowering women. While doing the monitoring and evaluation of SDGs achievement, there is a need to deepen the analysis and consider the processes that determine which gender elevates to leadership.

Title of the Paper: Methodology Forming Strategies for Management of Commercial Resources of Trading Enterprises


Authors: Olga Guseva, Svitlana Lehominova, Ruslan Dymenko, Olena Voskoboeva, Olga Romashchenko

Pages: 57-62

Abstract: The development of methodical approach to strategy formation of inventory management of trede enterprises. The aim of the paper is to develop a methodical approach to determining strategies for managing inventory on which may provide synchronization between the processes of formation of inventory and sales. Implementation of the proposed approach to study inventory management strategies will ensure synchronization between the processes of formation efficiency and effectiveness of inventory sales. Considered the impact of the most important factors, which we have identified, as forecast changing of population demand, quality inventory control and to determine the private areas within the overall strategy towards inventory management, describing the pursuit of optimization of inventory in the activities of commercial enterprise.

Title of the Paper: The Intellectual Structure of Business Analytics: 2002–2019


Authors: Hyaejung Lim, Chang-Kyo Suh

Pages: 50-56

Abstract: This paper identifies the intellectual structure of business analytics using document co-citation analysis (DCA) and author co-citation analysis (ACA). A total of 333 research documents and 17,917 references from the Web of Science were collected. A total of 15 key documents and nine clusters were extracted from the analysis to clarify sub-areas. Furthermore, burst detection and timeline analysis were conducted to gain a better understanding of the overall trends in business analytics. The main implication of the research results is in its ability to provide the state of past and present standards to practitioners and to suggest further research into business analytics to researchers.

Title of the Paper: Institutional Quality and Economic Performance in Nigeria: A New Evidence


Authors: Jonathan E. Ogbuabor, Fidelia N. Onuigbo, Anthony Orji, Onyinye I. Anthony-Orji

Pages: 38-49

Abstract: The question of whether institutional quality is an important driver of growth has been the subject of a growing literature in both developed and developing economies across the globe. This study revisits this relationship in Nigeria from 1981Q1 to 2016Q4 and discusses the relevant policy implications for post Covid-19 Nigeria. The study adopted the ARDL approach which uses a bounds test approach based on unrestricted error correction model (UECM) to test for a long run relationship among the relevant variables. The findings indicate that institutional quality impacts negatively but insignificantly on growth in Nigeria, both at the aggregate and sectoral levels. However, initial output growth levels, capital and labour were found to be important drivers of growth in the country, while trade is growth-retarding. The study concludes that in this post Covid-19 era in Nigeria, there is need to improve the quality of socio-economic and political institutions in the country so that a more robust impact of these institutions can be felt in the economic performance of the country both at the aggregate and sectoral levels.

Title of the Paper: Social Networking Sites and Internet Addiction among Adult Internet Users in Greece


Authors: Spyridon Kordonis, Klimis Ntalianis, Vasiliki Kikili, Filotheos Ntalianis

Pages: 32-37


Abstract: For the majority of Internet users, the Networkrepresents the endless source of opportunities that enhance wellbeing.For some though, it might be the reason that makes them“sick” with symptoms specific to mental disorder. This condition iscalled Internet addiction and is described as “impulse control disorderthat does not involve addictive substance”. In recent years SocialNetworking Sites (SNSs) have provided many and significantbenefits to users. At the same time, though, there are risks with theiruse, such as excessive use that can lead to addiction phenomena aswell as contribute to the manifestation of Internet addiction. Thepresent study investigates the phenomenon of Internet addiction inadult Greek users of Social Networking Sites, to determine theprevalence of IA among SNS users, and investigates the correlationof socio-demographic factors with the occurrence of IA in SNS users.The results showed that there is connection between the use of SNSand IA, and the prevalence of IA among SNS users reaches 30%.Moreover, IA relates to the age of SNS users.

Title of the Paper: A System Dynamics Simulation Study on the Efficiency of Commercial Banks from the Perspective of Green Credit


Authors: Fang Chen, Kun Zhang, Li Wang

Pages: 28-31

Abstract: With the deepened commitment to the green credit policy and increasingly intense competition among commercial banks, the impact of green credit on the efficiency of commercial banks has attracted great attention from the banking industry and governments. To study the efficiency of commercial banks from the perspective of green credit, this paper, with a case study on Bank of Shanghai, builds a system dynamics model to present the causal loop diagram and system flow diagram and seek the functional relations between variables. Then it goes on to simulate the evolution of the policy situation with system dynamics and attempts to find out the change path and evolution direction of green credit and variables regarding bank efficiency when a certain policy is adjusted, with a view to providing theoretical basis and data support for formulation of financial policies and selection of bank strategies.

Title of the Paper: Stock Forecasting using Combination of Continuous Wavelet Transform and Neuro-Fuzzy Systems


Authors: M. Golchin

Pages: 24-27

Abstract: Stock market forecasting is an important challenge for clients, so it attracts researchers to introduce new and reliable approaches to forecast this market. There are many approaches using wavelet decomposition to access details and approximation of stock market data and on the other hand, using neuro-fuzzy systems can be useful to overcome the uncertainty of data for forecasting. In this study, a hybrid approach will be introduced that is a combination of continues wavelet decomposition and neuro-fuzzy system to predict stock market data. For this aim, first data is normalized between 0 to 1 and decomposed by continues wavelet decomposition and data of each sample time was used to forecast “n” sample forward and finally, this approach was evaluated. For evaluating the performance of this approach, index of petroleum products of Tehran stock market between March 2015 to September 2019 was used and five steps of forecasting were considered. The best performance was 6.64x10-5 for one step forward forecasting and the worst was 4.74x10-4 for five steps forward forecasting. Results showed that, increment of forecasting step causes decrement of forecasting precision however it is reliable.

Title of the Paper: Selecting Optimal Portfolio in Generalised Feed Forward Networks And Self Organized Features Maps Hybrids


Authors: N., Loukeris, I., Eleftheriadis, E., Kokkinos

Pages: 20-23

Abstract: We evaluate the performance of 70 Generalised Feed Forward and 60 Self Organized Feature Maps models of plain and hybrid form to define the optimal classifier in portfolio selection. We also apply it on a novel model of optimal portfolio selection in hedging aspects.

Title of the Paper: Model of Project-Based Learning Platform


Authors: Ava Chikurteva, Denis Chikurtev

Pages: 16-19

Abstract: The implementation of the Project Based Learning (PBL) in education facing a number of problems and difficulties, prompting teachers to avoid its use and rely on traditional methods of training. The article examines the role of ICT in PBL, the benefits of PBL and its main problems in its implementation. A conceptual model of a PBL platform in education is proposed to guide and assist the teacher in planning, implementing and presenting project results. The role of the teacher is leading and involves preparing, presenting a project, motivating students, managing the process through continuous communication and facilitating.

Title of the Paper: Knowledge on Critical Infrastructure Safety


Authors: Dana Prochazkova, Jan Prochazka

Pages: 1-15

Abstract: The paper summarizes knowledge on critical infrastructure, its problems and on principles for its strategic safety management. It deals with way of critical infrastructure risk management and with appurtenant tools so the critical infrastructure might be sufficiently resilient to all present hazards. At the end it shows new emerging hazards