• Title/Summary/Keyword: Multiple regression model

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A study of the relationship between corporate governance and real earnings management: Based on foreign investors and growth (기업지배구조와 실제이익조정의 관계 연구: 외국인투자자와 성장성을 중심으로)

  • Kang, Shin-Ae;Kim, Tae-Joong
    • Journal of Distribution Science
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    • v.12 no.4
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    • pp.85-92
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    • 2014
  • Purpose - This study conducted empirical research on non-financial corporations listed on the stock exchange from 2001 to 2010, focusing on the effects of corporate governance on real earnings management of corporations. In particular, this study examined primarily the impact of the largest shareholder who could use earnings management to pursue his own self-interest, and foreign investors who played a checking role against the largest shareholders. The study also reviewed the relationship between corporate governance and earnings management while also considering corporate growth. Research design, data, and methodology - As for the measurements of real earnings management, abnormal operating cash flow and abnormal production cost were utilized. As for the independent variables, share ratio of the largest shareholder and affiliate person (M) and share ratio of foreign investors (FT) were leveraged. This study excluded those organizations that had changed their fiscal years, those that had not submitted an audit report, corporations under supervision, delisted corporations, corporations that had changed their business type, and so on, from the non-financial corporations out of the publicly traded corporations whose fiscal year ended in December from 2001 to 2010 in addition, KIS values were utilized for the corporate financial data in the study. To verify whether management structure and growth had an impact on real earnings management of a corporation through empirical analysis, a multiple regression analysis model was applied. Result - First, as a result of the analysis, the share ratio (M) of the largest shareholder and affiliate person was found to have a significant positive correlation with abnormal cash flow from operations(ACF) and abnormal production cost (APD). When controlling the growth, the share ratio (M) of the largest shareholder and affiliate person was found to have an insignificant correlation with abnormal cash flow from operations(ACF) but a significant correlation with abnormal production cost (APD). Second, foreign ownership (FT) was found to have a significant positive correlation with abnormal cash flow from operations(ACF) and abnormal production cost (APD) at the confidence level of 1 percent when not including the growth dummy. When controlling the growth, foreign ownership (FT) was found to have a significant negative correlation with abnormal cash flow from operations (ACF) and with abnormal production cost (APD). Conclusion - The results imply that the largest shareholder is closely related to earnings management through real activities regardless of corporate growth. It is also possible to determine from these results that foreign investors are related to earnings management through real activities when not considering corporate growth, but that they would reduce earnings management in the case of considering the growth. Thus, this study verified along with the existing studies that foreign investors were conducting the control function on controlling shareholders.

A Empirical Study on Determinants Affecting the Participation and Performance of Small and Medium-Size Enterprises in Global Electronic Commerce (해외직구·역직구시장에서 중소기업의 참여와 성과에 영향을 미치는 결정요인에 관한 실증연구)

  • Kim, Chang Bong;Min, Cheol Hong;Park, Sang An
    • International Commerce and Information Review
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    • v.18 no.4
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    • pp.3-29
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    • 2016
  • Recently, the market size of the global electronic-commerce is rapidly growing. The global market size of an overseas direct-purchase is expected to reach 1 trillion won by 2020. This study intends to determine the decision making factors of B2B overseas direct-purchase(DP) and reverse direct-purchase(RDP), and the impact on the vitalization of the small to middle-sized companies'(SMC) overseas DP and RDP. Ultimately, the purpose of this study is to provide a policy insight on the expansion of exports by SMC. For this, we determined the necessary elements for getting good results by Korean SCM in the overseas DP and RDP market through a preceding research based on resource-based theory and industry structure theory. Afterwards, we used the multiple regression model for positive analysis of the survey documents. We were able to confirm through analysis that the company information, logistics delivery, customs process, law and regulations have positive effects on the overseas DP and RDP. This study surveyed the entire overseas DP market, rather than focusing on the cases of harm and responses of the overseas DP, which was the topic for the preceding research, and can be differentiated from the previous study by deducting influence factors for the Korean SMC to succeed in the overseas DP and RDP market. Moreover, the results of this study is meaningful in proposing a strategic direction for the SMC participating in the overseas DP market and the government enacting policies.

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Comparision of Group and Individual Social Support on Burden and Family Functioning in Families with Asthmatic Children (집단 사회적지지와 개별 사회적지지가 천식아동 가족의 부담감과 가족기능에 미치는 영향)

  • 전화연
    • Journal of Korean Academy of Nursing
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    • v.29 no.2
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    • pp.418-428
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    • 1999
  • The main purpose of this study was to identify the effects of group social support and individual social support on the reduction of burden and improvement in family functioning of families with asthmatic children. The design of this study was a randomized pre-posttest quasi-experimental design to compare the two experimental groups. The theoretical framework for this study was derived from the study of burden in family caregivers by Suh and Oh (1993) based on the main effect model of social support theories. The data were collected from February 12, 1998 to May 29, 1998 at the pediatric out patient department of a university hospital located in Suwon city. The sample consisted of 39 family members who were identified as families with asthmatic children, Eighteen subjects were randomly assigned to the group social support group and 21 were assigned to the individual social support group. Group and individual social support members were seen for 60 to 90 minutes, four times over one to three weeks. The instruments used in this study were the Burden Scale developed by Suh & Oh(1993), the Visual Analogue Scale, and the Family Adaptability Cohesion Evaluation Scale(FACES-III) developed by Olson, Portner, and Lavee(1985). The collected data were analyzed using Mann-Whitney test, x$^2$-test, Wilcoxon sign rank test, t-test, ANOVA (Scheff), Pearson correlation coefficient. multiple regression, and social support process and content analysis. The results are as follow : 1. There was no significant difference before the experimental treatment among the subjects in the group social support group and individual social support group for general characteristics, burden, or family functioning. 2. Hypothesis 1 : “There will be a greater reduction on the burden score of the group social support group compared to the individual social support group” was not statistically significant(U=174.5, p=.683). The burden scores showed a significant decrease after participation in social support as compared to before participation for both groups. However there was a tendency for more reduction in the burden scores for the group social support than for individual social support. 3. Hypothesis 2 : “There will be a greater improvement in the family functioning scores for the group social support group compared to the individual social support group” was not statistically significant(U=153.0. p=.309). There was a tendency toward improvement in the family functioning scores of the group social support as compared to that of the individual social support. 4. According to the length of the treatment period, families with asthmatic children displayed affirmative responses, and the families set up a self-help group of mothers with asthmatic children in order to share their experiences, to get information and to solve their problems. In conclusion, it was found that group social support was the more effective nursing intervention for reducing burden and for improving family functioning of families with asthmatic children.

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Effects of Self-esteem, Nursing Professionalism, Cognitive Emotion Control Strategy on Clinical Practice Stress in Nursing Students (간호대학생의 자아존중감, 간호전문직관, 인지적 정서조절 전략이 임상실습스트레스에 미치는 영향)

  • Kang, Mi-Ran;Jeong, Kyeong-Sook
    • Journal of Digital Convergence
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    • v.18 no.6
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    • pp.353-361
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    • 2020
  • The aim of this study was to identify the factors related to clinical practice stress in nursing college students. The participants comprised 160 students in a nursing college. Data collection was conducted from December 1, 2019 to December 15, 2019. The data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient and a multiple regression analysis. The average score for clinical practice stress was 3.19 out of a maximum of 5. clinical practice stress had a statistically significant relationship with self-esteem(r=.22, p=.005), nursing professionalism(r=-.26, p=.001) and cognitive emotion control strategy(r=.38, p<.001). The factors affecting clinical practice stress were maladaptive cognitive emotion control strategy(β=.46, p<.001), nursing professionalism(β=-.20, <.001), grade(β=.20, p=.002), motivation for nursing choice(β=-.15, p=.019); the explanatory power of the model was 35.5%. Therefore, in order to reduce the stress on clinical practice, it is necessary to develop a program that can lower the maladaptive cognitive emotion control strategy along with improving the nursing professionalism in stress situations.

The relationships among professional self-concept, self-esteem and job satisfaction in the clinical dental hygienists (임상치과위생사의 전문직 자아개념, 자아존중감 및 직무만족도와의 관련성)

  • Min, Hee-Hong
    • Journal of Korean society of Dental Hygiene
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    • v.18 no.1
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    • pp.55-63
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    • 2018
  • Objectives: The objective of this study is to investigate the relationship among professional self-concept, self-esteem and job satisfaction in the clinical dental hygienists and provide the basic data for the effective management of clinical dental hygienists. Methods: A self-reported questionnaire was filled out by 250 clinical dental hygienists in Seoul, Gyeonggi, Chungcheong, Jeolla, and Gyeongsang Provinces from February 1 to March 30, 2017. Data were analyzed using IMB SPSS/WIN 22.0 program. Professional self-concept, self-esteem and job satisfaction according to the general characteristics and job characteristics were analzyed by independent t-test, one way ANOVA and Tukey. The relationship among professional self-concept, self-esteem and job satisfaction was found by Pearson's correlation. Multiple regression analysis was used to find out the relationship among professional self-concept, self-esteem and job satisfaction in the clinical dental hygienist. The significance level was a=0.05. Results: Clinical dental hygienist's professional self-concept was 3.76 points, self-esteem was 3.08 points and job satisfaction was 3.35 points. In general characteristics, professional self-concept showed the significant differences by age (p=0.043), marital status (p=0.005), level of education (p=0.001), duration of clinical career (p=0.003) and economic level (p=0.001). Job satisfaction showed the significant differences by age (p=0.019) and level of education (p=0.024). In job related characteristic, professional self-concept showed the significant differences by working area (p=0.001), working intensity (p=0.011) and position (p=0.001), while job satisfaction showed the significant differences by working area (p=0.014) and working intensity (p=0.001). Influencing factors in the job satisfaction in the clinical dental hygienists were age, working intensity, self-esteem, and professional self-concept. The explanatory of the model was 29.0%. Conclusions: Professional self-concept, self-esteem and job satisfaction in the clinical dental hygienists are related. To improve job satisfaction of the clinical dental hygienists, program development and institutional support to improve self-esteem and professional self-concept are needed.

A Study of the Relationship between Human Resource Management and Turnover in Social Welfare Organizations (사회복지조직의 인적자원관리와 이직률의 관계에 대한 연구)

  • Kang, Chulhee;Hur, Younghye;Chang, Insung
    • Korean Journal of Social Welfare
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    • v.67 no.1
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    • pp.189-213
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    • 2015
  • This study attempts to examine the relationship between human resource management and turnover rate in social welfare organizations in Korea. For the analysis, this study utilizes '2012 Central Government Social Welfare Facilities Evaluation(CGSWFE)' data and employs multiple regression analysis for examining the research model and questions built on previous studies. The key findings of this study are as follows: first, the annual average turnover rate in social welfare centers in Korea is 16.7%; second, after controlling other organizational factors, average pay, substantial system of supervision, and competence of supervisors have significant relationships with turnover rate in a negative direction; and third, availability of employment alternatives which is one of control variables also has significant and very strong relationship with turnover rate. The findings indicate that suitable compensation and supervision system with high quality would be important factors to decrease turnover rate in social welfare organizations facing increased competitions. This study provides new knowledge foundation on the relationship between human resource management and turnover rate in social welfare organizations. In addition, it contributes to advancing new discussions about turnover by analyzing real turnover behavior at organizational level which is completely different from the previous research focusing on turnover intention at individual level.

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Effects of socio-ecological factors on mental health of the residents in a single room occupancy (Jjok-bang) of South Korea (사회생태적 모델을 적용한 쪽방 주민의 정신건강 영향요인 분석)

  • Heo, Hyun-Hee;Che, Xian Hua;Chung, Haejoo;Kim, Jin Sung;Jo, Minjin;Moon, Daseul;Cha, Sujin;Yu, Sarah
    • Korean Journal of Health Education and Promotion
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    • v.32 no.2
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    • pp.39-52
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    • 2015
  • Objectives: Residents of a single room occupancy (Jjok-bang) in Seoul are at high risk of having mental health issues. The majority of residents live in single households with past traumatic experiences including self-deprivation and social exclusion. This study was to investigate the association between mental health and socio-ecological factors at the intrapersonal and community levels. Methods: We conducted face-to-face surveys in Dongja-dong Jjok-bang area in June, 2014. Of 78 participants, 76% were male and the mean age was 60 years (SD=11.53). A multiple regression was used to analyze the association among depression, a sense of well-being, socio-ecological factors, and perceived empowerment and community solidarity. Results: Perceived empowerment (${\beta}=0.83$; 95% CI=0.40, 1.26) and community solidarity (${\beta}=0.52$; 95% CI=0.04, 1.01) were positively associated with a sense of well-being. Participants with empowerment (${\beta}=-2.55$; 95% CI=-4.86, -0.23) and those with community solidarity (${\beta}=-2.36$; 95% CI=-4.94, 0.21) were negatively associated with being depressed. Conclusion: Mental health of the residents in Jjok-bang was more influenced by empowerment and community solidarity than socio-demographic factors. It is necessary to improve public health infrastructures that can enable the residents to enhance empowerment and community solidarity utilizing socio-ecological perspectives.

Associations between Physical Factors and Working Conditions and Occupational Injuries among Korean Workers (한국 근로자에서의 물리적 인자 및 근무여건과 직업성 손상 간의 관련성)

  • Park, Jung-hun;Sung, Joo-hyun;Sim, Chang-sun;Lee, Chan-boo;Park, Sang-jin;Lee, Ji-ho;Lee, Choong-ryeol
    • Journal of Korean Society of Occupational and Environmental Hygiene
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    • v.25 no.3
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    • pp.405-417
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    • 2015
  • Objectives: The aim of this study is to evaluate the association between physical factors, working conditions and occupational injuries among Korean workers. Methods: We used data from the 2nd Korean Working Conditions Survey, conducted in 2010. A total of 7,114 workers over 15 years of age were selected from among 10,019 Korean workers. The participants were interviewed using questionnaires. A multiple logistic regression model was used to analyze the associations among physical factors, working conditions and occupational injuries. Results: After the adjustment of socio-demographic factors, the odds ratio of injuries through physical factors such as vibration (adjusted Odds Ratio [aOR] 4.037, 95% CI 2.30-7.09), noise (aOR 4.562, 95% CI 2.64-7.89), high temperature (aOR 3.262, 95% CI 1.86-5.73), and low temperature (aOR 3.358, 95% CI 1.76-6.41) were greater in the exposed group than in the non-exposed group. The odds ratios of occupational injury(aOR 5.272, 95% CI 3.19-8.7 for very high speed work, aOR 3.303, 95% CI 1.95-5.60 for tight deadlines, and aOR 3.641, 95% CI 1.72-7.70 for not enough time to work) increased with increased work demands. Conclusions: In this study, physical factors such as vibration, noise, and high and low temperatures were significantly correlated with occupational injuries according to the increase in exposure intensity(p for trend <0.001). Also, working conditions such as high-speed work, tight deadlines and insufficient time to work showed significant associations with occupational injuries(p for trend<0.001).

Coping Strategies Utilized in the Caregiving Situation and Predictors of Health Responses among Informal Caregivers of Older Adults (노인대상자를 돌보는 비전문 간호제공자의 대응기전과 건강반응 예측요인)

  • Lee, Hae-Jung;Song, Rha-Yun
    • Journal of Korean Academy of Nursing
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    • v.30 no.4
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    • pp.893-904
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    • 2000
  • The sample of this study consisted of 140 informal caregivers who provided care to the older adults(over 60 years of age) in Great Cleveland, USA. Self-rated questionnaires were utilized to collect information. The purpose of the study was to identify coping strategies most frequently utilized by informal caregivers of older adults and to examine predictors of the caregivers' health responses to the caregiving situation applying Lazarus and Folkman stress model(1984). Stepwise multiple regression was used to identify significant predictors among caregivers' demographic-socio-economic factors, older adult's dependency of activities of daily living(ADLs), caregiver's appraisal to the caregiving situation, and coping strategies. Informal caregivers (N=140) included in the study utilized help-seeking and problem-solving coping strategies more than self-blame and minimization of threat coping strategies. Caregivers' responses to the caregiving situation were observed by caregivers' perceived physical health, depression and life satisfaction. For perceived physical health, threat appraisal, older adult's dependency on ADLs, existential growth coping strategy, and monthly income accounted for 25% of the variance. Caregivers who appraised the caregiving situation as more threatening, reported higher dependency on ADLs, used more existential growth coping strategy, and had higher monthly income reported better physical health. For depression, threat appraisal, stress appraisal, existential growth coping strategy, self-blame coping strategy, and monthly income accounted for 48% of the variance. Caregivers who used more existential growth coping and less self-blame coping, appraised the situation as less threatening, less stressful, and had higher monthly income reported less depression. For life satisfaction, self-blame coping, existential growth coping, monthly income, stress appraisal accounted for 49% of the variance. Caregivers who used more existential growth coping, less self-blame coping, less stress appraisal, lower monthly income reported better life satisfaction. In conclusion, informal caregivers in this study utilized positive coping strategies such as problem-focused, existential growth, help-seeking, rather than negative coping strategies including self-blame. When they utilized positive coping strategies more often, caregivers experienced higher perceived physical health, higher life satisfaction and lower depression. Therefore, nursing intervention which utilized positive coping strategies is needed to enhance informal caregivers to have positive health responses to the caregiving demands.

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Strategies of Improve Elderly Nutrition through Nutrition Education : Evaluation of the Effectivenss of the Program (영양교육에 의한 노인 영양증진전략연구 : 효과분석)

  • 임경숙;민영희;이태영;김영주
    • Korean Journal of Community Nutrition
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    • v.4 no.2
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    • pp.207-218
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    • 1999
  • The increased number of elderly in Korea presents great challenges for community nutrition programs. Strategies to enhance elderly nutrition are needed, as well as dietary advice that are reality-based and tailored to the need of the elderly. The purpose of this study was to evaluate the overall effectiveness of an elderly nutrition improvement program(ENIP), by assessing changes in nutrition knowledge, attitudes, and behavior after program completion. ENIP was conducted in Suwon for 4 months in 1998 at 5 centers for the elderly. The program provided individual nutrition counseling and brief biweekly group education sessions. To stimulate participation and motivation, the elderly in two centers were served free milk packs(200ml) three time a week during the program(milk+education group), and the elderly in 3 other centers were served yoghurt on the program day(education group). Altogether, 102 subjects finished the program(milk+education group 67 ; education group 35). Data about nutrition knowledge, dietary attitudes, diet records(24 hour recall) and dietary habit was collected before(baseline) and after the program(follow-up). The Drop-out rate for the milk+education group(2.9%) was significantly lower than that for the education group(30.0%)(p<.001). The Nutrition Knowledge fo females milk+education group increased significantly after the program, but no significant differences were observed in other groups. Over 60% of all the elderly showed positive responses to the healthy eating attitudes. Energy, protein, vitamin A, riboflavin, Calcium and Potassium intakes improved in the male milk+education group. The Vitamin C intake improved in the male education group. Energy and vitamin A intakes improved in the female milk+education group and energy, vitamin A, thiamin, riboflavin, niacin, Ca nad P in the female education group. A stepwise multiple regression analysis was performed to examine the effects of food intake changes on overall nutrient quality. For all elderly, the fish intake explained 12.6% of the variance, followed by candy intake and vegetable intake(model $R^2$=19.6%). Dietary habits such as meal time regularity and salty food reduction were markedly improved in both groups. Sixty-one percent of the milk+education subjects stated their participation was voluntary and active, while 51% of education subjects did. Sixty four percent of the subjects stated their interest on diet increased remarkably through program participation. Considering the results, it is conjectured that ENIP had a great impact on nutrient intake, dietary attitudes and habits. Milk supplement showed no direct effects on elderly nutrition improvement, but it encouraged the program by reducing drop-out rates and inducing voluntary participation. Therefore milk supplement could enhance the community nutrition education program. Moreover it is strongly suggested that the ENIP be expanded to other communities.

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