• 제목/요약/키워드: SEM(Structural equation modeling)

검색결과 689건 처리시간 0.023초

Stock Selection Model in the Formation of an Optimal and Adaptable Portfolio in the Indonesian Capital Market

  • SETIADI, Hendri;ACHSANI, Noer Azam;MANURUNG, Adler Haymans;IRAWAN, Tony
    • The Journal of Asian Finance, Economics and Business
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    • 제9권9호
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    • pp.351-360
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    • 2022
  • This study aims to determine the factors that can influence investors in selecting stocks in the Indonesian capital market to establish an optimal portfolio, and find phenomena that occurred during the COVID-19 pandemic so that buying interest / the number of investors increased in the Indonesian capital market. This study collection technique uses primary data obtained from the survey questionnaire and secondary data which is market data, stock price movement data sourced from the Indonesia Stock Exchange, Indonesian Central Securities Depository, and Bank Indonesia, as well as empirical literature on behavior finance, investment decision, and interest in buying stock. The method used in this research is the survey questionnaire analysis with the SEM (statistical approach). The results of the analysis using SEM show that investor behavior influences the stock-buying interest, investor behavior, and the stock-buying interest influences investor decision-making. However, risk management does not influence investor-decision making. This occurs when the investigator's psychological capacity produces more decision information by decreasing all potential biases, allowing the best stock selection model to be selected. When the investigator's psychological capacity creates more decision information by reducing biases, the optimum stock selection model can be chosen.

Determinants of restaurant consumers' intention to practice COVID-19 preventive behavior: an application of the theory of planned behavior

  • Jeong, Jin-Yi;Lee, Hojin
    • Nutrition Research and Practice
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    • 제15권sup1호
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    • pp.79-93
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    • 2021
  • BACKGROUND/OBJECTIVES: The purpose of this study was to examine the effects of knowledge about coronavirus disease 2019 (COVID-19), attitude, subjective norm, and perceived behavioral control on behavioral intentions to practice COVID-19 preventive behaviors using the theory of planned behavior (TPB). SUBJECTS/METHODS: A total of 519 restaurant customers' responses was collected in this study through an online self-administered questionnaire. Descriptive statistical analysis was performed on socio-demographic factors. One-way analysis of variance and t-test were conducted to determine differences in the constructs from the TPB according to age and sex. The hypotheses were tested using structural equation modeling (SEM). RESULTS: SEM revealed the positive effect of knowledge about COVID-19 on attitude, subjective norm, and perceived behavioral control to prevent the spread of COVID-19 in restaurants. Attitude, subjective norm, behavior intention, and knowledge positively affected COVID-19 preventive behavior intentions in restaurants. CONCLUSIONS: The results of this study confirmed that the TPB is helpful in elucidating the determinants of consumers' intention to practice COVID-19 preventive behavior in restaurants. These findings can help policy makers and professionals provide material for further public health interventions and inform them about awareness-raising, guidelines, and health education programs.

Social Media Strategic Capability and the Distribution on Innovation Performance for High-Tech SMEs

  • NGAMMOH, Niramarn;MUMI, Atthaphon;POPAITOON, Sujinda;ISSARAPAIBOOL, Achariya
    • 유통과학연구
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    • 제19권8호
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    • pp.37-46
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    • 2021
  • Purpose: This study aims at investigating how high-tech SMEs can enhance innovation performance through the application and distribution of social media strategic capability and whether entrepreneurial orientation moderates the relationship between social media strategic capability and innovation. Research design, data, and methodology: The study followed a deductive approach based on the quantitative design in investigating the proposed relationships. The data was collected using a questionnaire, and the proposed relationships were examined based on a sample of 221 high-tech SMEs through the application of structural equation modeling (SEM). By applying SEM, this study accounted for hidden and unobservable factors as well as reconciled the potential measurement errors. Results: As hypothesized, it was confirmed that social media strategic capability positively influences innovation performance. Besides, the findings supported the moderating effect of three dimensions of entrepreneurial orientation (innovativeness, proactiveness, and risk-taking) toward the relationship between social media strategic capability and innovation performance. Conclusions: According to the results, high-tech SMEs can enhance their innovation performance through social media by distributing and applying social media strategic capability along with entrepreneurial orientation. This study thereby enriches the literature of innovation on high-tech SMEs for implementing social media strategies as well as stimulating future social media research for entrepreneurship.

Factors Affecting Entrepreneurial Intention of College Students: An Empirical Study from Vietnam

  • NGO, Thi Thuy An;TRUONG, Phuong Thao;TRAN, Yen Linh;TRAN, Thao Vy;TRAN, Ngoc Tram;HUYNH, Ai My;HUYNH, Thanh Truc
    • The Journal of Asian Finance, Economics and Business
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    • 제9권5호
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    • pp.147-156
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    • 2022
  • The study aims to identify factors that influence university and college students' entrepreneurial intentions in Vietnam's Mekong Delta region. The study examines entrepreneurship mindset, subjective norm, capital sources, concept development assistance, personality qualities, and perceived behavioral control of university support for a student's entrepreneurial aim. The research was conducted according to the quantitative method. The data was collected through an online survey with a sample size of 611 students from 19 universities and colleges in the Mekong Delta region. The methods that test the scale, including Cronbach Alpha Test, Structural Equation Modeling (SEM), are used to consider the correlation between the influence factors. The results of SEM analysis show that there are five main factors affecting students' entrepreneurial intention with decreasing level of influence, including the source of capital, perceived behavioral control, business development support, entrepreneurial attitude, and educational support. Besides, the results indicate that the subjective norm, personality traits, and concept development support have no impact on the intention of students toward entrepreneurship. The research also reveals that the entrepreneurial intention of students at universities and colleges has a positive relationship and is significantly affected by capital source and perceived behavioral control.

Civil Servant Commitment on Giving Cash Waqf: Does Trust Matter?

  • Rifadli D. KADIR;Hilmy BAROROH;Luqmanul Hakiem AJUNA;Wiwin KONI;Supandi RAHMAN;Sri Apriyanti HUSAIN
    • 유통과학연구
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    • 제21권12호
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    • pp.35-45
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    • 2023
  • Purpose: This study analyzes civil servants' trust in cash waqf institution and their relationship with commitment. We use Key Mediating Variables (KMV) Theory with variables such as board benevolence, board integrity, board ability, board opportunism, communication, and accountability to predict the trust and commitment of civil servants in providing cash waqf. Research design, data and methodology: We used a quantitative research approach and an online questionnaire distributed to civil servants in Gorontalo Province; 410 respondents were obtained. Structural Equation Modeling (SEM) was used, utilizing the SEM-PLS software to analyze the data. Result: This study found that the variables board benevolence, board ability, board integrity, board opportunism, communication, and accountability affected trust. As for the variable of accountability, the hypothesis was rejected Conclusion: The communication variable of cash waqf institutions has a strong influence in increasing the confidence of civil servants in providing cash endowments. However, trust in waqf institutions may diminish due to low accountability and poor governance of cash waqf institutions. The trust of civil servants in cash waqf institutions in the future will increase their commitment to waqf.

Distribution in Coworking Space: Exploring Brand Experience and Brand Image on Brand Equity through Brand Loyalty

  • Adzra Athira ARIEF;Indah PUSPITARINI;Farell Giovan ABRAHAMS;Ricardo INDRA;La MANI
    • 유통과학연구
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    • 제22권7호
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    • pp.13-22
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    • 2024
  • Purpose: This research is a quantitative study aimed at determining the influence of brand experience and brand image on brand equity through brand loyalty in the distribution in Coworking Space industry. Research design, data and methodology: The analytical method employed in this research is Partial Least Squares Structural Equation Modeling (PLS-SEM). The study utilizes a quantitative approach, with data collected through online questionnaires distributed via Google Forms among Coworking Space users. A total of 68 respondents represent the research population.. The data was analyzed using PLS-SEM to examine the relationships between the variables under investigation. Results: The research findings indicate that brand experience significantly affects both brand loyalty and brand equity. Similarly, brand image significantly influences both brand loyalty and brand equity. Additionally, brand loyalty has a significant impact on brand equity Conclusions: The research findings indicate that brand experience has a significant effect on brand loyalty and brand equity. Brand image significantly affects both brand loyalty and brand equity.Additionally, brand loyalty significantly influences brand equity.

정보보안 종사자의 감정노동과 업무성과 간의 구조적 관계에 대한 융합연구 (A Convergence Study on the Structural Relationships among Emotional Labor and Work Performance of Information Security Professionals)

  • 이항;김준환
    • 한국융합학회논문지
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    • 제9권1호
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    • pp.67-74
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    • 2018
  • 본 연구는 정보보안 종사자의 감정노동과 업무성과 간의 구조적 관계를 분석하는데 그 목적이 있다. 이를 위하여, 정보보안 종사자 176명을 대상으로 설문조사를 수행하여 구조방정식모형 (SEM)을 이용해 수집된 자료를 분석하였다. 연구결과를 살펴보면, 감정표현 규칙에서 빈도, 강도와 다양성은 심층행동에 긍정적인 영향을 가지고 있는 것으로 나타났다. 표면행동도 모두 긍정적인 영향을 미치는 것으로 나타났다. 또한 감정노동이 업무성과에 미치는 영향에 있어서 심층행동은 긍정적인 관계를, 표면행동도 유의적인 정적 관계를 갖는 것으로 나타났다. 이러한 연구결과는 보안 종사자의 감정적 측면이 업무성과에 미치는 영향력을 파악하는데 의미를 두고 있으며, 심층행동의 감정노동 역량 제고를 위한 훈련과 교육이 지속적으로 요구됨을 시사하고 있다.

Numerical simulation of the flow in pipes with numerical models

  • Gao, Hongjie;Li, Xinyu;Nezhad, Abdolreza Hooshmandi;Behshad, Amir
    • Structural Engineering and Mechanics
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    • 제81권4호
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    • pp.523-527
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    • 2022
  • The objective of this study is to simulate the flow in pipes with various boundary conditions. Free-pressure fluid model, is used in the pipe based on Navier-Stokes equation. The models are solved by using the numerical method. A problem called "stability of pipes" is used in order to compare frequency and critical fluid velocity. When the initial conditions of problem satisfied the instability conditions, the free-pressure model could accurately predict discontinuities in the solution field. Employing nonlinear strains-displacements, stress-strain energy method the governing equations were derived using Hamilton's principal. Differential quadrature method (DQM) is used for obtaining the frequency and critical fluid velocity. The results of this paper are analyzed by hyperbolic numerical method. Results show that the level of numerical diffusion in the solution field and the range of well-posedness are two important criteria for selecting the two-fluid models. The solutions for predicting the flow variables is approximately equal to the two-pressure model 2. Therefore, the predicted pressure changes profile in the two-pressure model is more consistent with actual physics. Therefore, in numerical modeling of gas-liquid two-phase flows in the vertical pipe, the present model can be applied.

Quasi-static responses of time-dependent sandwich plates with viscoelastic honeycomb cores

  • Nasrin Jafari;Mojtaba Azhari
    • Structural Engineering and Mechanics
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    • 제88권6호
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    • pp.589-598
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    • 2023
  • This article addresses the quasi-static analysis of time-dependent honeycomb sandwich plates with various geometrical properties based on the bending analysis of elastic honeycomb sandwich plates employing a time function with three unknown coefficients. The novel point of the developed method is that the responses of viscoelastic honeycomb sandwich plates under static transversal loads are clearly formulated in the space and time domains with very low computational costs. The mechanical properties of the sandwich plates are supposed to be elastic for the faces and viscoelastic honeycomb cells for the core. The Boltzmann superposition integral with the constant bulk modulus is used for modeling the viscoelastic material. The shear effect is expressed using the first-order shear deformation theory. The displacement field is predicted by the product of a determinate geometrical function and an indeterminate time function. The simple HP cloud mesh-free method is utilized for discretizing the equations in the space domain. Two coefficients of the time function are extracted by answering the equilibrium equation at two asymptotic times. And the last coefficient is easily determined by solving the first-order linear equation. Numerical results are presented to consider the effects of geometrical properties on the displacement history of viscoelastic honeycomb sandwich plates.

Nonlinear modeling of shear strength of SFRC beams using linear genetic programming

  • Gandomi, A.H.;Alavi, A.H.;Yun, G.J.
    • Structural Engineering and Mechanics
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    • 제38권1호
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    • pp.1-25
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    • 2011
  • A new nonlinear model was developed to evaluate the shear resistance of steel fiber-reinforced concrete beams (SFRCB) using linear genetic programming (LGP). The proposed model relates the shear strength to the geometrical and mechanical properties of SFRCB. The best model was selected after developing and controlling several models with different combinations of the influencing parameters. The models were developed using a comprehensive database containing 213 test results of SFRC beams without stirrups obtained through an extensive literature review. The database includes experimental results for normal and high-strength concrete beams. To verify the applicability of the proposed model, it was employed to estimate the shear strength of a part of test results that were not included in the modeling process. The external validation of the model was further verified using several statistical criteria recommended by researchers. The contributions of the parameters affecting the shear strength were evaluated through a sensitivity analysis. The results indicate that the LGP model gives precise estimates of the shear strength of SFRCB. The prediction performance of the model is significantly better than several solutions found in the literature. The LGP-based design equation is remarkably straightforward and useful for pre-design applications.