• Title/Summary/Keyword: Model effectiveness

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An Application of Heckman Two-step Procedure to Management Accounting and Firm Effectiveness: An Empirical Study from Vietnam

  • HUYNH, Quang Linh
    • The Journal of Asian Finance, Economics and Business
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    • v.9 no.2
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    • pp.347-353
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    • 2022
  • Using the Heckman two-step procedure, this study investigates the relationship between management accounting implementation and firm effectiveness. The research data for this study was acquired from 450 publicly traded companies in Vietnam; however, the final sample only includes 304 responses containing useful information. The reliability analysis was used to evaluate the acquired data to examine the qualities of constructs and the dimensions that make them up. Then, the Heckman two-step technique was performed to analyze the causal connection from the acceptance of management accounting to firm effectiveness allowing for the effect of environmental uncertainty and organizational characteristics on the likelihood of adopting management accounting. The empirical findings show that management accounting acceptance determines firm effectiveness; however, the research model on the relationship between management accounting adoption and firm effectiveness has a sample selection bias. The main conclusions of this study are that there is a difference in the effects of management accounting adoption on business effectiveness when sample selection bias is not taken into consideration. When potential sample selection bias is taken into account by integrating environmental uncertainty and organizational characteristics in the research model, the effect of adopting management accounting on company effectiveness becomes minor.

Analysis of Ventilation Performance Using a Model Chamber

  • Kang Tae-Wook;Chang Tae-Hyeon
    • Journal of Advanced Marine Engineering and Technology
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    • v.29 no.7
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    • pp.736-743
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    • 2005
  • In this study, three different types of mechanical ventilation systems are compared based on their ventilation characteristics: tracer gas concentration decay characteristics, and ventilation effectiveness by calculating actual ventilation air flow rate. The experiments are performed by using a step-down method for measuring tracer gas. $CO_{2}$ gas, concentration in the model chamber. Application of a mixing factor, k, was used and measured values ranged from 0.68 to 0.77. The Type 2 ventilation system was found to have the highest ventilation effectiveness rather than the Types 1 and 3.

PSEUDO-RELIABILITY MODEL OF COMBAT TANK SYSTEM

  • Lie, Chang-Hoon
    • Journal of the military operations research society of Korea
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    • v.3 no.1
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    • pp.137-150
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    • 1977
  • The effectiveness of an actual combat tank system is analyzed. A measure of effectiveness which includes performance and reliability called pseudo-reliability is introduced. A model is introduced to optimize the design of the system in which the system pseudo-reliability is maximized subject to cost constraint. This model is a nonlinear programming problem and is solved by the sequential unconstrained minimization technique (SUMT). A numerical exampl with actual data from the test evaluation of five combat tanks is used to illustrate the model.

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정보시스템 사용에 대한 내부통제 효과성이 정보역량에 미치는 영향에 관한 연구

  • Lee, Jae-Beom;Kim, Sang-Su;Im, Byeong-U
    • 한국경영정보학회:학술대회논문집
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    • 2007.11a
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    • pp.117-122
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    • 2007
  • Recently, as the management environments are changing rapidly and the uncertainty is becoming larger, the needs of internal control for management and IS become stronger. In order to construct a new internal control system for IS, it is necessary to evaluate the former research of the system. This study emphasizes the importance of effective internal control system, presents a conceptual framework for the preceding factors to consider, and verifies empirically the framework. This study sets the organization citizenship behavior, IS innovation resistance, and IT capability from the viewpoint of Socio-Technical system as the preceding factors for the effectiveness of internal control system. A research model, affecting the above factors on IS capability as a mediating variable of the internal control effectiveness for the use of IS, is set up. PLS-Graph 3.0 is used to verify the model. We found that the internal control effectiveness have affirmative effect on information capability, a surrogate variable of the IS effectiveness and a mediation effect is meaningful.

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A Study on the Factors Influencing Adolescent' Reading Effectiveness (청소년 독서유효성 영향요인 연구)

  • Jeong, Dae-Keun;Hong, Hyun-Jin
    • Journal of Korean Library and Information Science Society
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    • v.45 no.3
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    • pp.271-295
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    • 2014
  • The purpose of this study is to analyze factors that influence adolescents' reading effectiveness and to structuralize the relationship between those factors. In consequence, reading attitude is the greatest factor that influences reading effectiveness, followed by library positivity and the reading role model. According to ANOVA, there is a difference in average between personality types, but PLS(Partial Least Squares) shows that personality types do not affect reading attitudes and reading effectiveness.

A Study on the Effectiveness of International Commercial Arbitration Agreement in China (중국의 국제상사중재합의 효력에 관한 연구)

  • Ha, Hyun-Soo
    • Journal of Arbitration Studies
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    • v.22 no.3
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    • pp.25-46
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    • 2012
  • China instituted arbitration law on September 1, 1995, after having legislated the law under the UNCITRAL Model Law. However, Chinese arbitration law has some problems related to the effectiveness of its arbitration agreement, unlike the UNCITRAL Model Law. Thus, parties in dispute who want to settle a dispute based on Chinese arbitration law as governing law have more to take into consideration because there could be serious problems related to the effectiveness of the arbitration agreement. Therefore, this paper attempted to analyze the classification of jurisdiction related to the authorization of effectiveness in arbitration agreement of arbitral organization and Chinese, verify the problems, and suggest the solutions. Moreover, the author tried to verify the problems in applying the law related to the authorization of effectiveness in Chinese arbitration agreements and suggest some improvements. This paper also suggests improvements and problems related to the selection of arbitral organizations among several conditions for effective arbitration agreement in Chinese arbitration law. Finally, the author suggests some cautions and countermeasures related to arbitrations agreement for domestic investors and traders dealing with the Chinese.

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The Influence of Cognitive and Demographic Similarities of Knowledge Workers on Team Effectiveness (지식근로자 팀효과성의 선행요인 -구성원의 인지적 유사성 vs 속인적 유사성-)

  • Kang, Hye-Ryun;Park, Sook-Young
    • Knowledge Management Research
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    • v.4 no.2
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    • pp.1-18
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    • 2003
  • Team-members may have diverse backgrounds and characteristics and such diversity is getting increased in teams in terms of demographics(gender, age, and educations) and capabilities(knowledge, skills, and experiences). A meta-analysis of the last 40 years studies, however, concluded that diversity in teams does not have the consistent main effect on team performances. On the other hand, according to theories of selection and socialization, similarity in values, backgrounds, and experiences buttress the positive and effective working environment. Therefore, we conduct an empirical study in favor of similarity in work teams for the sake of team effectiveness. We investigated the importance of the similarity of team-members on IT team effectiveness. Two aspects of similarity, demographic and cognitive, were considered together. The shared mental model(SMM) was introduced as the representative construct for the cognitive similarity. We found that SMM is more important than the demographic similarities on team effectiveness.

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Sensitivity Analysis for Reliability Growth Projection Model based on NHPP (NHPP 기반의 신뢰성 성장 예측 모델에 대한 민감도 분석)

  • Cho, K.H.;Lee, H.C.;Jang, J.S.;Park, S.C.
    • Journal of Applied Reliability
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    • v.16 no.4
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    • pp.305-312
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    • 2016
  • Purpose: The purpose of this study is to provide a sensitivity analysis of system reliability for recognizing effectiveness of changing of BD mode failures using reliability growth projection model based on NHPP. Methods: Crow extended reliability projection model (CERPM) is used to analyze the changing of two factors 1) the number of BD mode failures, 2) fix effectiveness factor (FEF) values. Results: The system reliability has increased in accordance with the number of BD mode failures and FEF values have increased. Conclusion: It is necessary to design failure modes and FEF values to supervise the reliability.

A Study on measuring techniques of retrieval effectiveness (검색효율 측정척도에 관한 연구)

  • Yoon Koo Ho
    • Journal of the Korean Society for Library and Information Science
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    • v.16
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    • pp.177-205
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    • 1989
  • Retrieval effectiveness is the principal criteria for measuring the performance of an information retrieval system. This paper deals with the characteristics of 'relevance' of information and various measuring techniques of retrieval effectivess. The outlines of this study are as follows: 1) Relevance decision for evaluation should be devided into the user-oriented and the system-oriented decisions. 2) The recall-precision measure seems to be user-oriented, and the recall-fallout measure to be system-oriented. 3) Many of composite measures can not be justified III any rational manner unfortunately. 4) The Swets model has demonstrated that it yields, in general, a straight line instead of a curve of varying curvature and emphasized the fundamentally probabilistic nature of information retrieval. 5) The Cooper model seems to be a good substitute for precision and a useful measure for systems which ranked documents. 6) The Rocchio model were proposed for the evaluation of retreval systems which ranked documents, and were designed to be independent of cut-off. 7) The Cawkell model suggested that the Shannon's equation for entropy can be applied to measuring of retrieval effectiveness.

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The Relation with Shared Cognition for Knowledge Worker and Team Effectiveness (지식근로자의 공유인지와 팀 효과성의 관계)

  • Lim, HuiJeong;Kang, HyeRyeon
    • Knowledge Management Research
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    • v.6 no.2
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    • pp.67-90
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    • 2005
  • Attention has been focused recently on the concept of shared cognition which encompasses the notion that effective team members hold knowledge that is overlapping and complementary with teammates. This shared cognition is expected to improve team effectiveness. In contrast to the continued efforts in developing theoretical approach of shared cognition, empirical studies are meager. Thus, we conducted an empirical study to investigate the role of shared cognition on team effectiveness. This study classifies shared cognition into two types, team mental model and transactive memory system, by shared meaning. A total of 121 new product development teams in the IT industry were surveyed for the data collection. The results of analysis can be summarized as follows: first, team mental model has a positive influence on team performance, team innovative behavior and team learning effect. And the relation with team mental model and team performance is moderated by the similarity of knowledge structure among the expert. Second, transactive memory system has a positive influence on team performance, team innovative behavior and team learning effect.

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