• Title/Summary/Keyword: empirical dimension

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Fractal Structure of the Stock Markets of Leading Asian Countries

  • Gunay, Samet
    • East Asian Economic Review
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    • v.18 no.4
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    • pp.367-394
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    • 2014
  • In this study, we examined the fractal structure of the Nikkei225, HangSeng, Shanghai Stock Exchange and Straits Times Index of Singapore. Empirical analysis was performed via non-parametric, semi-parametric long memory tests and also fractal dimension calculations. In order to avoid spurious long memory features, besides the Detrended Fluctuations Analysis (DFA), we also used Smith's (2005) modified GPH method. As for fractal dimension calculations, they were conducted via Box-Counting and Variation (p=1) tests. According to the results, while there is no long memory property in log returns of any index, we found evidence for long memory properties in the volatility of the HangSeng, the Shanghai Stock Exchange and the Straits Times Index. However, we could not find any sign of long memory in the volatility of Nikkei225 index using either the DFA or modified GPH test. Fractal dimension analysis also demonstrated that all raw index prices have fractal structure properties except for the Nikkei225 index. These findings showed that the Nikkei225 index has the most efficient market properties among these markets.

A Study on the Importance of Service Quality Dimentions in Educational Service (교육서비스 품질차원의 중요도에 관한 연구)

  • Chung, Ki-Han;Kim, Jong-Hyun
    • Journal of Industrial Convergence
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    • v.3 no.2
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    • pp.85-104
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    • 2005
  • The purpose of this study is to measure an education service quality from the domestic junior college crane. And it confirms the important degree against the education service quality dimension which the students perceive. The empirical results have indicated that it is relation to sex and subject and education service quality dimension for of students.

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Patient Satisfaction as an Indicator of Service Quality in Malaysian Public Hospitals

  • Manaf, Noor Hazilah Abd;Nooi, Phang Siew
    • International Journal of Quality Innovation
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    • v.10 no.1
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    • pp.77-87
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    • 2009
  • The main aim of the paper is to provide an empirical analysis on patient satisfaction as an indicator of service quality in Malaysian public hospitals. Self-administered questionnaires were administered to patients by convenience sampling. Two sets of questionnaires were used, one for inpatient and another one set for outpatient. Selection of hospitals was made according to states in Peninsular Malaysia. 23 hospitals covering all state level hospitals, the National Referral Centre and selected district hospitals were chosen as respondent hospitals. Two dimensions of service quality emerged, namely clinical and physical dimension of service. Both outpatient and inpatient were found to be more satisfied with clinical dimension of service than physical dimension. For outpatient satisfaction, there was positive correlation between waiting time and patient satisfaction. Patient satisfaction was also found to be higher in the smaller district hospitals than in the larger state hospitals. For clinical dimension of service, patients were satisfied with the services of doctors and nurses, while for physical dimension of service, patients were satisfied with the cleanliness of the facilities. The ability of the research to be conducted by random sampling was inhibited by the reluctance of patients to cooperate, which led to the use of convenience sampling. Studies have also shown that patients are reluctant to express their feelings on services provided by their caregivers. The study provides primary data for a nationwide study on patient satisfaction in Malaysian public hospitals, for both inpatient and outpatient.

Estimation of Permeability Coefficient Using Fractal Dimension of Particle Size Distribution Curve in Granular Soils (조립토 입도분포곡선의 프랙탈차원을 이용한 투수계수의 예측)

  • Park Jae-Seong;Chang Pyoung-Wuck;Son Young-Hwan;Kim Seong-Pil
    • Journal of The Korean Society of Agricultural Engineers
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    • v.48 no.4
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    • pp.41-49
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    • 2006
  • Since particle size distribution curves are useful to estimate permeability of soil, many formulae for permeability coefficient (k) have been published using the parameter from the curves and factors, such as grain size, particle shape and void ratio of soils. However, the parameters such as $C_c,\;C_u$ and $D_n$ derived from only some discrete points on the curve are insufficient to represent the whole gradation. In this paper fractal dimension which is quite new concept and known to be able to represent the entire curve of particle size distribution is employed for the parameters. An empirical formula of permeability coefficient has been developed with fractal dimension and percent of finer than 0.075 mm. The formula developed from this study has confirmed its effectiveness by a series of laboratory tests and comparison to other published formulae. It is found that permeability coefficient is proportional to fractal dimension and inversely proportional to percent of fines.

A Study on the Smart City Core Value and Indicator Design (공간정보 기반의 스마트시티 핵심가치 및 지표 설계에 관한 연구)

  • Park, Geun-wan;Park, Hyun-Ji;Bae, Seoung-Hun;Kim, Min-Kwan;Hwang, Seung-June
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.43 no.4
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    • pp.198-207
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    • 2020
  • Smart City operates with the purpose of solving urban problems. The important thing in smart city operation is that spatial information must be managed at a high level. In addition, it has the characteristics of being managed by one platform. This study presented the core value dimension of smart city based on analysis of various domestic and overseas smart city operation cases. Smart cities are basically operated based on spatial information, and the higher the level of spatial information, the more smart city services can be connected and managed in an integrated manner. The performance dimension of smart city core values presented in the study includes prosperity, personalization, convenience, accuracy, sustainability, safety, environment, integration, etc., and there is a connectivity dimension, a concept that can be managed in an integrated manner. This study will be useful for empirical research on smart city performance dimension design and surveys based on case studies. It will also help field managers who develop, operate, and manage smart cities when quantifying performance dimensions.

Determinant Factors of Business Agility for Real Time Enterprise : Empirical Validation (실시간 기업구현을 위한 비즈니스 민첩성의 결정요인에 관한 실증적 연구)

  • Kim J. W.;Park C. H.;Nam K. C.;Park S. Y.;Kim B. W.
    • Journal of the Korean Operations Research and Management Science Society
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    • v.30 no.4
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    • pp.83-97
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    • 2005
  • We could confirm through this study that in the company which has secured its agility in an information technology dimension, a process dimension and an organization behavior dimension as a real time enterprise, various agility competences of that company are used more effectively for productivity Improvement, development on new products and customer satisfaction. Therefore, based on these determinant factors, it has been proved that an individually differentiated investment of technical and organizational resources for development and innovation of new products has contributed affirmatively to get a more efficient enterprise performance : and, in this point, it is verified again that the agility secured through a conversion toward the real time enterprise (RTE) is a more effective plan to increase the enterprise performance.

A Study on the Dimensions of Object-oriented Systems Modeling : Theory and an Exploratory Evaluation (객체지향 시스템 모델링 차원 : 이론 및 탐색적 평가)

  • 안준모
    • The Journal of Information Technology and Database
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    • v.8 no.1
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    • pp.41-65
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    • 2001
  • This study proposes evaluation dimensions of object-oriented systems modelling tools and activities available in object-oriented systems development practices. The dimensions ale developed based on previous research in cognitive psychology, information systems modeling study, and object-oriented systems analysis arid design areas. The proposed dimension is composed of two dimensions. The one dimension includes abstraction levels of modelling and the other includes process and representation in modeling activities. Experts on object-oriented modeling were selected to evaluate the practical validity of the proposed dimensions and applications of major object-oriented modeling tools during systems development project. Most of the tools were observed to be used for representing objects rather than for modeling the process of related objects. The proposed modeling dimension will be evaluated for acquiring general validity in future empirical research.

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The Effects of Sustainable Management Activity on Corporate and Product Evaluation (지속가능경영 활동이 신뢰와 호혜성지각을 통해 기업과 제품평가에 미치는 영향)

  • Park, Sang-June;Byun, Ji-Yeon
    • Korean Management Science Review
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    • v.32 no.3
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    • pp.119-130
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    • 2015
  • Previous studies have demonstrated that the three dimensions of Triple Bottom Line (TBL : economic, social, and environmental responsibility) indirectly affect product/corporate evaluation through reciprocity perception and trust (expertize-based trust and benevolence-based trust). Different from the past studies, this study investigates on the indirect effects as well as the direct effects of the three dimensions on product/corporate evaluation. The empirical results can be summarized as follows. First, reciprocity perception affects benevolence-based trust but it does not expertize-based trust. Second, the effect of economic dimension on product/corporate evaluation is not affected by reciprocity perception and benevolence-based trust, however, the effects of social dimension and environmental dimension on product/corporate evaluation are affected by reciprocity perception and benevolence-based trust.

Service Quality Measurement of In-Flight Meal Service: A Comparison between Korean and Foreign-Based Airlines

  • Baek, Seung-Hee
    • Journal of Community Nutrition
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    • v.8 no.3
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    • pp.153-159
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    • 2006
  • The current exploratory study investigates and compares the perceptions of the service quality of in-flight meals through the evaluation of recent consumers (within 2 weeks) of services provided by Korean and foreign-based airlines. Twenty (20) items for measuring service quality were categorized into three factor dimensions of 'food quality', 'employee service', and 'professionalism'. Among these, 'employee service' was rated highest by Korean and foreign-based airlines. When items representing each service quality dimension were analyzed and compared, only the 'food quality' dimension of Korean-based airlines was perceived higher than that of other foreign-based airlines. Findings also revealed a spectrum with some items with higher or lower mean values within each service quality dimension. Results of this study can expectedly be used to benefit both from a theoretical and practical point of view by providing empirical data that measure the service quality of in-flight meal service.

The Effect of Application of Non-Financial Dimensions of Balanced Scorecard on Performance Evaluation: An Empirical Study from Saudi Arabia

  • ABDELRAHEEM, Abubkr Ahmed Elhadi;HUSSIEN, Asaad Mubarak
    • The Journal of Asian Finance, Economics and Business
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    • v.9 no.4
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    • pp.63-72
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    • 2022
  • The study applied the non-financial dimensions of the Balanced Scorecard (customer dimension, internal processes dimension, learning, and growth dimension). It was done to evaluate performance and measure the effectiveness of these dimensions on performance evaluation at College of Science and Humanities Studies: Al Aflaj, Prince Sattam Bin Abdulaziz University. The researchers used the descriptive analytical approach to conduct the study to find the effect of these dimensions. Data was collected from the college staff and administrators; 120 questionnaires were distributed, out of which 112 were collected. The questionnaire data were analyzed using exploratory (EFA) and confirmatory factor analysis (CFA), hypotheses were tested using the structural equation modeling (SEM) through the (Spss) and (Amos) software. The study finding showed that the balanced scorecard had a positive contribution in evaluating the performance of the College of Science and Humanities Studies: Al Aflaj, Prince Sattam Bin Abdulaziz University through the dimensions of customers and internal processes, and the study finding revealed that the balanced scorecard has no contribution at performance evaluating the College of Science and Humanities Studies: Al Aflaj, Prince Sattam Bin Abdulaziz University through the dimension of learning and growth.