scholarly journals Application of the Kernel Density Function for the Analysis of Regional Growth and Convergence in the Service Sector through Productivity

Mathematics ◽  
2020 ◽  
Vol 8 (8) ◽  
pp. 1234
Author(s):  
Ronny Correa-Quezada ◽  
Lucía Cueva-Rodríguez ◽  
José Álvarez-García ◽  
María de la Cruz del Río-Rama

The aim of this research work is to analyze growth and convergence processes in the service sector and its large groups, market, and non-market services, at the regional level in Ecuador by taking the labor productivity variable as a reference. The methodology used is an analysis of distributive dynamics of the data, applying the non-parametric method of Kernel density functions from a mathematical economics approach. The results obtained show that the service sector has non-alarming levels of inequality, its trend over time is increasing. When disaggregating the data, it was observed that non-market services show a rapid growth in inequality. In contrast, market services show greater stability during the period analyzed. Regarding intra-distribution dynamics for the service sector and its subsectors, in the long term, poor regions improve, while rich regions deteriorate. However, deterioration of advanced regions is less intense in non-market services.

Symmetry ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 461 ◽  
Author(s):  
Luis Quintana-Romero ◽  
Ronny Correa-Quezada ◽  
Marlon Ramón-Mendieta ◽  
José Álvarez-García

The objective of this research is to examine growth and convergence processes in the provinces of Ecuador, considering sectoral productivity as an analysis variable. To do so, evidence of the productivity of the agricultural, secondary and service sectors is presented, and by applying the non-parametric method of density functions of the kernel, the complete distribution of the data is analyzed. The results obtained indicate that territorial inequality in Ecuador has very different behavior depending on the sectors of the economy. It is noted that inequality in terms of productivity is very high in the agricultural sector, it is at an average level in the secondary sector, and is less intense in the service sector. In the long-term, the overall balance is that sectoral inequality decreased among Ecuadorian provinces. However, there are two processes differentiated in time; in the first phase, inequality decreases more rapidly and in the second phase, it even increases in some sectors, as in the case of secondary sector returns.


Author(s):  
Mohammed H. Sheikh ◽  
Muhammad A. R. Sharif

Phase change materials (PCM) are used in many energy storage applications. Energy is stored (latent heat of fusion) by melting the PCM and is released during resolidification. Dispersing highly conductive nanoparticles into the PCM enhances the effective thermal conductivity of the PCM, which in turn significantly improves the energy storage capability of the PCM. The resulting colloidal mixture with the nanoparticles in suspension is referred to as nanostructure enhanced phase change materials (NEPCM). A commonly used PCM for energy storage application is the family of paraffin (CnH2n+2). Mixing copper oxide (CuO) nanoparticles in the paraffin produces an effective and highly efficient NEPCM for energy storage. However, after long term application cycles, the efficiency of the NEPCM may deteriorate and it may need replacement with fresh supply. Disposal of the used NEPCM containing the nanoparticles is a matter of concern. Used NEPCM containing nanoparticles cannot be discarded directly into the environment because of various short term health hazards for humans and all living beings and unidentified long term environmental and health hazards due to nanoparticles. This problem will be considerable when widespread use of NEPCM will be practiced. It is thus important to develop technologies to separate the nanoparticles before the disposal of the NEPCM. The primary objective of this research work is to develop methods for the separation and reclamation of the nanoparticles from the NEPCM before its disposal. The goal is to find, design, test, and evaluate separation methods which are simple, safe, and economical. The specific NEPCM considered in this study is a colloidal mixture of dodecane (C12H26) and CuO nanoparticles (1–5% mass fraction and 5–15 nm size distribution). The nanoparticles are coated with a surfactant or stabilizing ligands for suspension stability in the mixture for a long period of time. Various methods for separating the nanoparticles from the NEPCM are explored. The identified methods include: (i) distillation under atmospheric and reduced pressure, (ii) mixing with alcohol mixture solvent, and (iii) high speed centrifugation. These different nanoparticle separation methods have been pursued and tested, and the results are analyzed and presented in this article.


2016 ◽  
Vol 17 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Esa Hämäläinen ◽  
Olli-Pekka Hilmola ◽  
Andres Tolli

Abstract EU Directive of MARPOL Annex VI and its economic impact on the Nordic paper industry is theme of this research work. Empirical data for analysis purposes was gained from a large Nordic paper mill that exports bulk products mainly to Europe (70 % of its volume). The study shows that in the end the industry’s location still has an economical effect, and that the location has a distinct impact on competition through rising transportation costs. Environmental regulation continues and fosters long-term upwards trajectory of transportation cost, which has been experienced by the paper mill earlier during years 2001-2009. Sulphur regulation change to cleaner grades of maritime diesel did not turn as heavy cost increase in the 2015, however, possibility to gain cost benefits in rapidly deteriorating oil markets were not reached either. Therefore, in depressed industrial product markets, like paper industry, implications were such that margins of export industry remained low.


Author(s):  
George Galster

In 2013 Detroit became the largest municipality to declare bankruptcy. Unfortunately, bankruptcy does not treat the long-term cause of Detroit’s financial crisis: the ongoing fiscal death spiral triggered by loss of industrial, commercial and residential tax base starting in the 1950s. The first loss came from manufacturers who abandoned older factories in the city in favor of suburban locations. The second came from the federal government, whose guarantees for FHA-VA mortgages and subsidies for expressway construction spurred suburbanization of Detroit’s (overwhelmingly white) middle class. Detroit trimmed services and raised tax rates in response. But this made it an increasingly uncompetitive location, thereby further contracting its property and income tax bases, forcing still more cuts in services and increases in tax rates. What is required to break out of the fiscal death spiral in which Detroit finds itself is substantially more federal and state revenue sharing and regional growth management.


Author(s):  
Juliia Pidvalna ◽  
Olha Pavelkiv

The article considers the process of adaptation of young people in the labour market. It has been determined that the main adaptation barriers for young people in the modern Ukrainian labour market are: low competitiveness; lack of the majority of young people with the necessary knowledge and skills for self-determination in the labour market, career development, negotiating with employers on employment issues; inconsistency of the professional qualification structure of youth with the needs of the economy and the available vacancies; lack of a mechanism to ensure the relationship between the labour market and the market of educational services; backwardness of personnel policy of most organizations, focused mainly on achieving current results, rather than on long-term development. It is analyzed that the successful adaptation ends, as a rule, with stable employment, adoption of laws of the labour market functioning. Violations of young people's adaptation in the labour market can have serious consequences, the main of which are chronic unemployment of large groups of young people, negative impact on socio-psychological development of young people, frustration at work as a means of personal self-realization.


2020 ◽  
pp. 26-34
Author(s):  
Nataliia Smochko

The purpose of this research work is to analyze modern theoretical and methodological approaches to the study of territorial systems of monodevelopment in the theory of social geography. Method. General scientific methods, including analysis, scientific synthesis, analytical method, methods of comparison and generalization were used in the study. Scientific novelty. The article reveals traditional and innovative approaches to identifying and defining the territorial system of mono-development in the geographical space. In substantiating the application of approaches, we used the work of scientists and geographers, who took them into account in the study of complex systems. It has been determined that the leading and traditional approaches in socio-geographical research are historical-geographical (retrospective) and territorial (geospatial), which should be combined with genetic. According to which all geographical phenomena have been considered as processes that have their genesis, dynamics, differences, patterns spatial distribution. To study the processes of system formation, a comprehensive approach is important. It provides a comprehensive analysis of the development of the main factors in the formation of modern socio-economic processes in the regions. The system approach allows to consider functioning and development of the territorial monosystem and its basic types as systems of the territorial organization of a society at various hierarchical levels, to open their integrity and the mechanisms providing effective management of such monodevelopment. At the same time, it has been found that not all the outlined approaches of complex systems can be used to study monosystems in the form in which they were used previously. This is because in the study of systems in retrospect, the application of approaches was focused on the analysis of the structure of the studied objects and the variety of processes that took place between the elements of the studied systems. In the study of monosystems, the researcher should be interested in their development to bifurcation moments and the conditions for further preservation of monosystems. This means that traditional approaches, such as historical-geographical (retrospective) and territorial (geospatial) should be modified to adapt to these tasks. It is important to use innovative approaches: cluster (formation of so-called network structures), behaviorist (explanation of the territorial identity of the monosystem), participatory (strategic planning of the territorial development of the monosystem). Only by combining a variety of approaches will it be possible to obtain a synergistic effect and form a synergistic approach that will provide additional benefits in the study of monosystems and the processes of their functioning. Practical meaning. The results of this study contribute to a deeper socio-geographical understanding of the processes of monodevelopment, their genesis, features of their course and provide an opportunity to model the long-term development of territorial social systems, to achieve expected results due to long-term transformation. They can be used for further study of monosystems of different hierarchical levels, as well as for the development of practical recommendations and programs for the development of individual monoterritories.


Author(s):  
Taehee Kim ◽  
Hyomin Seo ◽  
Min Cheol Kim ◽  
Kyungro Chang

Boosting productivity in the service sector is a key priority for promoting long-term growth. To have customers perform certain tasks normally undertaken by employees is an important means to improving productivity. Technological innovation has influenced business practices for several decades and many service firms, including sports service firms, are now utilising technology extensively to reduce the use of labour. This study investigates how the user's perception of technology-based self-service (TBSS)affects customer productivity and how the customer productivity evaluated by TBSS influences the customer's intentions to reuse in relation to a virtual golf simulator - a successful and seriously played game in Korea.


2016 ◽  
Vol 39 ◽  
Author(s):  
Scott Atran

AbstractToday's major religions are moralizing religions that encourage material sacrifice for spiritual rewards. A key issue is whether moralizing religions gradually evolved over several millennia to enable cooperation among genetic strangers in the spiraling competition between increasingly large groups occupying Eurasia's middle latitudes, or whether they emerged only with the onset of the Axial Age, about 2,500 years ago, as societal wealth increased to allow privileging long-term goals over immediate needs.


2010 ◽  
pp. 75-100
Author(s):  
Giuseppe Francesco Gori ◽  
Patrizia Lattarulo ◽  
Renato Panicciŕ

The purpose of the paper is to assess the impact of the Regional Mobility and Logistic Plan (RMLP) of Tuscany on regional growth and spatial disparities between the Tuscan provinces. In order to evaluate its economic impact, we first quantify the impact in terms of changes in travel time and variations in the cost of transportation per unit of delivered output. We then make use of the Remi-Irpet model. The latter explains the agglomeration economies and productivity differentials. We find that, despite the fact that the RMLP does not solve the structural problem of mobility within Tuscany, it does make it possible to get rid of some potential constraints for long-term regional growth, even if the economic impact across the provinces is disequalizing.


Sign in / Sign up

Export Citation Format

Share Document