Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.61.64
This study discusses the problem of the accuracy of the single- and multi-index models to form a stock investment portfolio. This study aims to reveal information related to the accuracy of the single- and multi-index models to form an optimal stock investment portfolio after the COVID-19 pandemic in Indonesia. The results of the analysis can be used to choose which model is more accurate to form an optimal stock portfolio that can provide returns for investors. This research is devoted to determining the optimal stock portfolio using the single- and multi-index models. The data were collected from stocks included in the LQ45 list for February-July 2022 with 5980 observations consisting of 115 market returns, 1150 industrial sector returns, and 4715 individual stock returns. The analytical method used was regression analysis to predict the expected returns from single- and multi-index models, standard deviation of residuals, and Wilcoxon's differential signed-rank test. The results of the study show that stock investment portfolios based on daily data using the single index model approach and the multi-index model have their respective levels of accuracy with an accuracy rate of 95% (alpha 5%). The main finding is that the multi-index model proved to be more accurate than the single-index model, where the standard deviations of the multi- and single-index models were 0.0215 and 0.0280, respectively. Keywords: individual stock returns, market returns, multi-index model, single-index model, Wilcoxon’s signed-rank test. DOI: https://doi.org/10.55463/hkjss.issn.1021-3619.61.64
{"title":"Accuracy of Single- and Multi-Index Models in Stock Investment Portfolios: Study on LQ45 Shares after the Covid-19 Pandemic in Indonesia","authors":"","doi":"10.55463/hkjss.issn.1021-3619.61.64","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.61.64","url":null,"abstract":"This study discusses the problem of the accuracy of the single- and multi-index models to form a stock investment portfolio. This study aims to reveal information related to the accuracy of the single- and multi-index models to form an optimal stock investment portfolio after the COVID-19 pandemic in Indonesia. The results of the analysis can be used to choose which model is more accurate to form an optimal stock portfolio that can provide returns for investors. This research is devoted to determining the optimal stock portfolio using the single- and multi-index models. The data were collected from stocks included in the LQ45 list for February-July 2022 with 5980 observations consisting of 115 market returns, 1150 industrial sector returns, and 4715 individual stock returns. The analytical method used was regression analysis to predict the expected returns from single- and multi-index models, standard deviation of residuals, and Wilcoxon's differential signed-rank test. The results of the study show that stock investment portfolios based on daily data using the single index model approach and the multi-index model have their respective levels of accuracy with an accuracy rate of 95% (alpha 5%). The main finding is that the multi-index model proved to be more accurate than the single-index model, where the standard deviations of the multi- and single-index models were 0.0215 and 0.0280, respectively. Keywords: individual stock returns, market returns, multi-index model, single-index model, Wilcoxon’s signed-rank test. DOI: https://doi.org/10.55463/hkjss.issn.1021-3619.61.64","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135498457","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.61.65
Narcissism is a common form of self-importance. Individuals appreciate a high degree of life satisfaction if their life circumstances agree with their own standards. This study was conducted to understand the factors affecting the life satisfaction of Gen Z individuals through narcissism, self-esteem, and symptoms of social network addiction. The research model and hypotheses were tested using the PLS-SEM technique with SmartPLS 4. The dataset was collected in 2023 with 306 respondents. The results show that narcissism has an indirect impact on the life satisfaction of Gen Z individuals through self-esteem and social media addiction. More specifically, the symptoms of social media addiction had a negative impact on Gen Z’s life satisfaction. Based on the analysis results, this study proposes several options to improve the satisfaction of Gen Z and Gen Z management implications. Keywords: narcissism, social media addiction, self-esteem, life satisfaction, Gen Z. DOI: https://doi.org/10.55463/hkjss.issn.1021-3619.61.65
{"title":"Influence of Narcissism on Gen Z’s Life Satisfaction","authors":"","doi":"10.55463/hkjss.issn.1021-3619.61.65","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.61.65","url":null,"abstract":"Narcissism is a common form of self-importance. Individuals appreciate a high degree of life satisfaction if their life circumstances agree with their own standards. This study was conducted to understand the factors affecting the life satisfaction of Gen Z individuals through narcissism, self-esteem, and symptoms of social network addiction. The research model and hypotheses were tested using the PLS-SEM technique with SmartPLS 4. The dataset was collected in 2023 with 306 respondents. The results show that narcissism has an indirect impact on the life satisfaction of Gen Z individuals through self-esteem and social media addiction. More specifically, the symptoms of social media addiction had a negative impact on Gen Z’s life satisfaction. Based on the analysis results, this study proposes several options to improve the satisfaction of Gen Z and Gen Z management implications. Keywords: narcissism, social media addiction, self-esteem, life satisfaction, Gen Z. DOI: https://doi.org/10.55463/hkjss.issn.1021-3619.61.65","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135699911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.60.21
{"title":"Influence of Behavioural Finance, Customer Satisfaction, and Service Quality on Bank-Switching Behavior","authors":"","doi":"10.55463/hkjss.issn.1021-3619.60.21","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.60.21","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73537837","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.60.35
{"title":"Determinant Factors in Decision-Making for Women Leaders","authors":"","doi":"10.55463/hkjss.issn.1021-3619.60.35","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.60.35","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"286 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72434425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.61.26
{"title":"Liberal Feminism Propaganda and Social and Political Implications in Indonesia","authors":"","doi":"10.55463/hkjss.issn.1021-3619.61.26","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.61.26","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77908197","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.60.89
{"title":"E-Learning Platforms Analysis – Modern Review","authors":"","doi":"10.55463/hkjss.issn.1021-3619.60.89","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.60.89","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73495322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.60.16
{"title":"The Role of Company Assets and Leadership Style in the Sustainable Business Performance of the Digital Creative Companies in Java","authors":"","doi":"10.55463/hkjss.issn.1021-3619.60.16","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.60.16","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86301225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.60.58
{"title":"Understanding the Role of Admiration in Marketing","authors":"","doi":"10.55463/hkjss.issn.1021-3619.60.58","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.60.58","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79987317","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.60.65
{"title":"The Relevance of Capability Approach to Evaluate Living Standard: A Systematic Review","authors":"","doi":"10.55463/hkjss.issn.1021-3619.60.65","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.60.65","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"117 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79445875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.55463/hkjss.issn.1021-3619.60.71
{"title":"Movement of Urban Vacant Land Use as an Effort in Keeping the Food Security in Surakarta during the Pandemic","authors":"","doi":"10.55463/hkjss.issn.1021-3619.60.71","DOIUrl":"https://doi.org/10.55463/hkjss.issn.1021-3619.60.71","url":null,"abstract":"","PeriodicalId":38983,"journal":{"name":"Hong Kong journal of Social Sciences","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80313992","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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