KIHASA published 10 more research monographs in 2023 as follows:

• 1.The 2023 Korea Welfare Panel Study (KOWEPS): Descriptive Report
  The Korea Welfare Panel Study (KOWEPS) is managed jointly by KIHASA and the SNU Social Welfare Research Center. The first wave of the study was conducted in 2006, and the 18th wave was completed in 2023. As one of the Korea's representative panels, KOWEPS shows the dynamics of the welfare needs and wlefare status of Korean people. It has been recognized for its utility in various academic fields, including social welfare, economics, sociology, and public health, and promotes interdisciplinary research. This report provides the contents of the 18th wave with its findings, which will help the users of KOWEPS to better understand the panel.
  
  

• 2.A Report on the Korean Health Panel Survey of 2021 (II)
  Since 2008, the Korea Health Panel Survey (KHPS), a panel study conducted jointly by KIHASA and the National Health Insurance Service, has been compiling data and conducting research on how Koreans spend on health care and what factors influence their decisions on the use of health care services. The data collected and the indicators developed by the KHPS are then used to provide evidence for the making and implementation of health policy. This basic analysis report contains the results of the annual data analysis of the 2nd term 3rd wave of the panel study conducted in 2021, and describes how the survey was conducted in 2023. Ths basic analysis results contained in this report cover the health care expenditures, health care utilization and related experiences of the KHPS households and their members in 2021. The report is intended to provide evidence and basic data for health policy making and in-depth analysis.
  
  

• 3.An Analysis of the Impact of Macroeconomic Variables on Births and Deaths
  This study analyzes the impact of macroeconomic changes on births and deaths to guid population policies based on macroeconomic conditions. The findings of the analysis on the impact of macro-variables on births and deaths confirm that youth employment plays an important role in responding to the issue of low fertility. This suggests the need for a policy shift from the current emphasis on providing incentives for married couples to have children to broadening the policy targets to include unmarried youth. It also presents the fact that changes in macroeconomic conditions can affect one's health and death through various complicated pathways. In conclusion, the study suggests that in analyzing the causes of demographic change, it is necessary to consider not only demographic factors but various socie-economic and institutional factors as well; in formulating policies in response to population change, it is necessary to strengthen the linkage with other policies such as economic, labor, health and welfare policies.
  
  

• 4.Marriage Characteristics and Policy Implications according to Sex Ratio Imbalance at Birth
  Delayed marriages or declining marriage rates in Korea have so far been attributed to young people's values about marriage and childbearing, and to their socioeconomic and housing characteristics. However, what if the unbalanced sex ratio that began in the early 1980s and lasted for 30 years created a population structure that impedes those who want to get married from being able to do so? This is the idea behind this study. This study develops demographic indicators to measure how the unbalanced sex ratio at birth has shaped Korea's current demographic structure and projects future trends. It also examines the policy needs of Korean youth.
  
  

• 5.A Study on the National Health Expenditure Database
  National Health Accounts are information that tracks annual health expenditures and breaks them down into the components of health resources, health care functions, and types of providers. They are compiled according to the System of Health Accounts, which was developed by a collaboration of international organizations led by the OECD and WHO and has become the international standard. Health expenditure data provide insight into people's use of health care services through the lens of health expenditure, thus enabling resource allocation planning, policy prioritization, and performance evaluation. This study is aimed at evaluating the framework of National Health Accounts and find ways to improve the utility of health expenditure data.
  
  

• 6.Labor Market Outcomes of Informal Caregiver for the Elderly
  Declining fertility rates and increasing life expectancy, among other factors, are accelerating the aging of Korean society, requiring more resources to care for the elderly. Meanwhile, the caregiving responsibilities of informal caregivers may act as a factor that reduces their labor market participation, which in turn is known to have a negative impact on long-term economic growth. This study examines how informal caregiving for the elderly affects the labor market participation and outcomes of informal caregivers in Korea. The study finds that informal caregiving for the elderly tends to reduce the caregivers' likelihood of working, annual hours worked, and economic well-being. This effect is more pronounced for caregivers who have less than a high school education, are female, are between the ages of 55 and 64, have higher-than-average household incomes, and have fewer household members than other caregivers. The effect is also larger for the cases where caregivers are unpaid family members and the care recipients are their spouse's parents.
  
  

• 7.Old-Age Health Inequality as Seen from a Life Cycle Perspective and Strategies for Ensuring Later-Life Health
  This study was motivated by the concern that health inequalities among the elderly are getting worse, despite the growing social interest in increasing the absolute level of health and health promotion. To discuss health inequality in old age in depth, we focused our efforts on developing a multidimensional understanding of health in old age and identifying the living conditions of older people in Korea that function as various social inequality factors and the mechanism by which these factors give rise to current disparities in health levels.
  
  

• 8.A Study on the Old-age Income Security System and Elderly Poverty in European Welfare States
  This study reviews the old-age income security systems of eight European countries that have managed old-age risks relatively well--Sweden, Finland, the Netherlands, the UK, Germany, France, Italy, and Greece--an the levels of poverty and inequality among their elderly in order to draw implications for Korea, a country on the path to pension reform. To this end, the study compiles the data from the OECD, EU, and MISSOC to organize the information on the structure, idiosyncratic features, and adequacy of these old-age income security systems. It also uses the raw data from the EU-SILC and Statistics Korea's Household Finance and Welfare Survey to analyze the income composition of elderly households as well as the trends in poverty and inequality among the elderly in the eight European countries and Korea. This study is an attempt to provide evidence for the establishment of an old-age income security system capable of overcoming the so-called pension trilemma--poverty and inequality among the elderly, intra- and intergenerational inequity, and financial instability.
  
  

• 9.A Study of Sample Attrition and Supplementary Samples in Panel Surveys: Based on the Korean Health Panel Survey
  The Korean Health Panel Survey began building its second panel in 2018 and began conducting tha annual survey from 2019, starting with a preliminary survey. The 2023 survey was completed in August. The number of households in the panel has decreased over successive survey rounds. Given the ongoing sample attrition, it is necessary to carefully examine the panel's sampling design from multiple angles. This study reviews the survey completion rates of the second Korean Health Panel Survey and analyzes the characteristics of the panel households. It also examines sample attrition among panel households and their members, and the factors that affect such attrition. The study examines the current structure and proposes additional sampling methods to enhance the representativeness of the sample.
  
  

• 10.A Study on the Management and Utilization of Health and Welfare Research Data: Focusing on Research Data Management Cases in KIHASA
  This study examines the research data management systems used by research institutes in Korea, including KIHASA, to suggest measures to improve the utilization of research data and its integrated management in the fields of health and welfare. Based on its findings, the study suggests measures for improvement in the following areas: reearch data management, research data management procedures, personnel and organization management, quality control and personal information protection, and data utilization. It also identifies the need to enhance cooperation among research institutions for open access to data, to increase flexility in data provision methods, and to improve the functionality of research data platforms.