• Title/Summary/Keyword: endogenous variables

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Simultaneous Equations and Endogeneity in Corporate Finance: The Linkage between Institutional Ownership and Corporate Financial Performance

  • MALIK, Qaisar Ali;HUSSAIN, Shahzad;ULLAH, Naeem;WAHEED, Abdul;NAEEM, Muhammad;MANSOOR, Muhammad
    • The Journal of Asian Finance, Economics and Business
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    • v.8 no.3
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    • pp.69-77
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    • 2021
  • The objective of this research is to explore the inconclusive theoretical and empirical association between institutional ownership and firm performance in the context of emerging Pakistani economy. The data set consists of all the non-financial firms listed on the Pakistan Stock Exchange (PSX). Annual data set covers the period ranging from 2010 to 2015. However, the econometric analysis does not include those firms with incomplete data. Thus the final data set comprised of an unbalanced panel of sample of 276 firms with 1231 firms years observations. Data related to the institutional ownership and other variables taken for the study were extracted through the annual financial reports of the firms. The research used Tobin's Q as a proxy of market measure of firm performance and tested the endogenous relation with institutional ownership through OLS and 2SLS approach. The study also applied Durbin-Wu-Hausman test to determine the endogeneity before analyzing the 2SLS model. The Durbin-Wu-Hausman Test (DWH) conform the endogenous link between institutional ownership and performance and vice versa. The results derived from 2SLS also confirm a highly significant relationship and two way direct proportional relationships between the institutional investment and corporate performance in the studied companies.

A Structural Model for Quality of Life of Infertile Women (불임 여성의 삶의 질 모형 구축)

  • Kim, Ju Hee;Shin, Hye Sook
    • Journal of Korean Academy of Nursing
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    • v.43 no.3
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    • pp.312-320
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    • 2013
  • Purpose: The purpose of this study was to test a model for quality of life among infertile women. This model was based primarily on the concept of the Fertility Quality of Life by Boivin et al. (2011) and the Infertility Resilience Model by Rindenour (2009). Methods: Fifteen measurable variables were used to estimate quality of life. They included endogenous variables such as fertility quality of life and resilience, and exogenous variables such as infertility related stress, depression, marital adjustment, and family support. Data sets (n=203) used for analysis were collected in a general hospital which had, on average, 400 assisted reproductive technologies per month. Results: The assessment of the modified model indicated acceptable fit, with $x^2/d.f$=2.07, GFI=.90, AGFI=.89, NFI=.89, CFI=.91, RMSEA=.07. Depression, infertility related stress, marital adjustment, resilience, and family support had direct influences on quality of life. Conclusion: The results of this study should contribute to the development of nursing intervention programs to enhance quality of life using factors that affect fertiQol (fertility quality of life) of infertile women.

Cost Driver Analysis in General Hospitals Using Simultaneous Equation Model and Path Model (연립방정식모형과 경로모형을 이용한 종합병원의 원가동인 분석)

  • 양동현;이원식
    • Health Policy and Management
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    • v.14 no.1
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    • pp.89-120
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    • 2004
  • The purpose of this empirical study is to test hypotheses in order to identify the cost drivers that drive indirect costs in general hospitals in Korea. In various cases' studies, it has been suggested that overhead costs are driven by volume and complexity variables, how they are structurally related and how the cost impacts of these variables can be A unique feature of the research is the treatment of complexity as an endogenous variable. It is hypothesized that level of hospital complexity in terms of the number of services provided(i.e., “breath" complexity) and the intensity of individual estimated in practice. overhead services(ie., “depth" complexity) are simultaneous determined with the level of costs needed to support the complexity. Data used in this study were obtained from the Database of Korean Health Industry Development Institute, Health Insurance Review Agency and analyzed using simultaneous equation model, path model. The results found those volume and complexity variables are all statistically signi-ficance drivers of general hospital overhead costs. This study has documented that the level of service complexity is a significant determinant of hospital overhead costs, caution should be exercised in interpreting this as supportive of the cost accounting procedures associated with ABC. with ABC.

Dynamic Modeling of Building Services Projects: A Simulation Model for Real-Life Hospital Project

  • Abhishek, V.;Jagadeesh, P.
    • Journal of Construction Engineering and Project Management
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    • v.3 no.3
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    • pp.35-41
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    • 2013
  • All infrastructure projects are said to be inter-dependent, uncertain and labour-intensive in nature. There is no exception for building services sub sector. For a real time project such as 'The construction, extension and refurbishment of Employees' State Insurance Corporation (ESIC) Hospital at Tirupathy, India with total area of 45,000 square feet at an estimated cost of 1100 million rupees, a generic process model is developed to simulate the effect of set of identified variables on construction project. The 'Stocks and Flows' of dynamic model affords relevant insights to project managers, who apply this knowledge when designing better performance through more appropriate project planning. It is concluded from the model-based approach that building services works can be improved through specific better focussed managerial efforts, such as an increasing coordination effectiveness at the planning stage, clarifying prerequisite conditions prior to installations. Otherwise, pending works arising from work clashes can lead to knock-on effects resulting in productivity constraints and pressures, as well as more rework and demolition. Current study reveals that the model enables deep insight into various interdependent processes, their by improving construction performance levels, by addressing the dynamics of design errors and defective works, and recovering delayed schedule.

The Structural Modeling for Nurses' Interpersonal Competence within an Organization (간호사의 조직내 대인관계 역량에 관한 구조모형)

  • Yi, Jieun
    • Journal of Korean Academy of Nursing Administration
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    • v.21 no.4
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    • pp.366-374
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    • 2015
  • Purpose: This study was designed to identify a path model that anticipates the interpersonal competence of nurses by anticipating factors that explain interpersonal competence within an organization, and analyzing the effects of these factors. A hypothetical model was formulated based on a literature review of interpersonal competence. For the study, influential factors were divided into two variables: exogenous variables including communication style, coaching leadership, and social support, and endogenous variables of self-efficacy, job satisfaction, and organizational commitment. Methods: The sample included 202 hospital nurses. Data were collected through questionnaires and analyzed using SPSS and AMOS. Results: The overall fitness was good ($x^2=74.707$, p<.001), d.f=19, $x^2/df=3.932$, GFI=.940, AGFI=.826, RMR=.009). Social support, self-efficacy, horizontal communication and organizational commitment directly affected the interpersonal competence of the nurses, and informal type of communication, horizontal, upward communication and coaching leadership indirectly effected the interpersonal competence of the nurses. Horizontal communication, social support, self-efficacy, and organizational commitment explained 46.5% of the variance in interpersonal competence of nurses. Conclusion: Based on the study results, nurses in hospitals need informal types of communication, horizontal, upward communication and coaching leadership to increase their interpersonal competence.

Effects of Control Attribution, Demand-Control-Support Model, and Control Strategy on Elderly Workers' Subjective Well-Being (노인 일자리 사업 참여자의 통제 귀인과 활동의 요구-조절-지지 정도 및 통제 전략이 자신의 주관적 안녕감에 미치는 영향)

  • Cho, Yoon-Joo
    • Journal of the Korean Home Economics Association
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    • v.48 no.8
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    • pp.13-26
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    • 2010
  • This study tested the path model with regard to how certain variables (control attribution, demand-control-support of activity, and control strategy) affected the elderly workers' subjective well-being(swb). In the path model, the exogenous variables were internal and external control attribution. We used demand-control-support of activity, and primary and secondary control strategies as mediating variables. The endogenous variable was each elderly worker's swb. Study participants were 205 elders participating in an "education activity". We used descriptive statistical analysis, Pearson's correlation and hierarchical multiple regression to examine data collected from structured interviews with the participants. Path analysis revealed the followings: First, secondary control strategy was the strongest predictor of participants' swb but internal control attribution, demand of activity, and support of activity also positively affected participants' swb. Second, internal control attribution indirectly affected the participants' swb. Finally primary control strategy negatively affected on the participants' swb.

A structural equation model of organizational commitment by hospital nurses: The moderating effect of each generation through multi-group analysis (병원간호사의 조직몰입 구조모형: 다중집단분석을 통한 세대별 조절 효과)

  • Chae, Jeong Hye;Kim, Young Suk
    • The Journal of Korean Academic Society of Nursing Education
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    • v.28 no.3
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    • pp.305-316
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    • 2022
  • Purpose: The purpose of this study was to construct a structural equation model of organizational commitment in hospital nurses based on a job demands-resources model and to confirm the moderating effect(s) according to the nurses' generation. Methods: The model was constructed of the exogenous variables of social support, emotional intelligence, emotional labor, and job conflict and the endogenous variables of burnout, job engagement, and organizational commitment. The participants were 560 hospital nurses working in 3 general hospitals. Data were collected from August 1 to September 30, 2021, and analyzed using SPSS Window 23.0 and IBM AMOS 23.0. Results: The strongest factor directly influencing hospital nurses' organizational commitment was social support. In a multiple group analysis, nurses' generation had a partial moderating effect. In a generation-specific analysis, the Z generation group was higher than the X and Y generation groups in the variables of emotional labor and burnout related to organizational commitment. Conclusion: Based on the findings of this study, to improve hospital nurses' organizational commitment, social support is needed as an important management strategy. At the organizational level, we need to develop ways to improve organizational commitment by reducing the emotional labor and burnout of Generation Z.

The impact of grit, gratitude disposition and stress on psychological well-being among nursing students during the Covid-19 pandemic: a structural equation modeling (COVID-19 Pandemic 상황에서 간호대학생의 그릿, 감사성향, 스트레스가 심리적 안녕감에 미치는 영향에 대한 구조모형)

  • Choi, Heejung;Jeong, Harim
    • The Journal of Korean Academic Society of Nursing Education
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    • v.28 no.1
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    • pp.70-79
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    • 2022
  • Purpose: The purposes of this study were to develop and test a model for the effects of grit, gratitude disposition, and stress on the psychological well-being of nursing students during the Coronavirus-2019 pandemic. Methods: The data were collected from June 9 to June 27, 2021. A total of 286 nursing students responded to an online questionnaire. In the hypothesis's model, the exogenous variables were grit and gratitude disposition, and the endogenous variables were nursing students' stress and psychological well-being. Data were analyzed using the SPSS/WIN and AMOS programs. Results: The final model showed the following indices of goodness of fit: χ2=78.30, χ2/df=3.01, GFI=.95, CFI=.96, TLI=.94, SRMR=.05, and RMSEA=.08. Nursing students' psychological well-being was explained by their grit, gratitude disposition, and stress directly and indirectly, with these three variables explaining 56% of psychological well-being. Conclusion: This study identified factors affecting the psychological well-being of nursing students in a state of increased stress due to the COVID-19 pandemic. The results of this study can be a basis for developing and applying a program to enhance nursing students' psychological well-being.

Generation Z in Jakarta's Attitude Towards COVID-19 Ad Distribution on YouTube

  • CHRISTIAN, Michael;PARDEDE, Ratlan;INDRIYARTI, Eko Retno
    • Journal of Distribution Science
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    • v.20 no.3
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    • pp.13-22
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    • 2022
  • Purpose: Thisstudy aims to measure the attitudes of Generation Z in Jakarta towards advertisements containingCOVID-19 information. Research design, data and methodology: This study is a quantitative method with partial least square structural equation modeling (PLS-SEM) with SMART PLS as an analytical tool. The sample size is 216 participants was obtained randomly through a questionnaire distributed online. This study consisted of exogenous variables (advertising content, value, irritation, and economic benefits), endogenous variables (attitudes towards advertising), and some moderating roles. Results: The results of thi study explain that this generation's attitude towards advertising is affected by the content and value aspects embedded in advertisements. Value can be formed from creativity in making advertising content as interesting and informative as possible. Interestingly, this study also found that the irritation aspect and economic benefits had no effect on the audience's attitude towards the advertisement. Neither the irritating aspect of advertising nor the economic value that is formed acts as a moderator of the content and the value of the ad. Conclusions: The ongoing pandemic and periodic adjustments to government policies regarding COVID-19, these results can be compared with other advertisements for future studies, especially those using the same variables as this study.

The Macroeconomic Production Model in Business Environment - Analying with a Static and Dynamic Equations

  • Donghae LEE
    • Asian Journal of Business Environment
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    • v.14 no.1
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    • pp.23-30
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    • 2024
  • Purpose: The purpose of this research is to explore the macroeconomic model through both static and dynamic equations. The primary objective of this study is to investigate the variations in the elasticity of substitution across changing economic variables within the framework of the Allen-Uzawa production functions. Research, design, data and methodology: The data were drawn from the World Bank's annual central statistical office database from 2010 to 2021 in the United States of America. The level of expenditures and of the public finance sector, macroeconomic data like output, inflation rates, and labor are examined. Results: This study demonstrates the interaction of two equations, clarifying that the macroeconomic model is practical to determining the stability of both static and dynamic equation systems analytically. The Allen-Uzawa equations allow for the verification of macroeconomic model properties, and study results demonstrate an increase in the range of capital uses as a form of mechanization. A constant elasticity of substitution function is derived from the macroeconomic variables. Conclusion: The macroeconomic model, though the analysis of the static and dynamic Allen - Uzawa model, not only facilitates the examination of long-term trends in crucial endogenous variables but also overcomes challenges commonly associated with other mathematical methods. Overall, the analysis promotes economic growth, investment, and employment. The levels of expenditures and the public finance sector, along with macroeconomic data such as output, inflation rates, and labor, are examined.