• Asian Journal for Public Opinion Research
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• 제11권3호
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• pp.257-273
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• 2023

Conducting face-to-face surveys is difficult and cost prohibitive, necessitating a new attempt to build a probability-based panel in South Korea. Since 99.9% of adult Koreans own a mobile phone, mobile phone numbers provide a viable sampling frame. Random digit dialing (RDD) surveys were conducted August-December 2021. Of the 288,056 valid phone numbers dialed, 13,655 respondents between the ages of 19 and 69 completed a phone survey. These respondents were later invited by text message to join a panel; 3,202 of these (23.4% or 1.2% based on the number initially contacted) joined the panel. When compared to official government statistics like resident registration data, the census, or the Social Survey, this new probability-based panel can be said to be representative of the Korean population on the basis of age, gender, location, marital status, and household size after weighting is applied. However, even after weighting, panel members are more educated than the general population, white-collar workers and self-employed people are overrepresented, and blue-collar workers are underrepresented. As of February 2023, this panel has grown to 10,471 participants with plans to continue to invite more panel members in the same way. Based on the comparisons in this paper, we can regard this panel as a cost-effective, probability-based panel that may be used for various kinds of public opinion research, by researchers both within and outside of Korea. As we continue to refine and grow this panel, we hope it will become more widely used by researchers as well as provide a model for those building similar panels in other countries.

• Asian Journal for Public Opinion Research
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• 제9권2호
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• pp.188-211
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• 2021

Decreasing response rates to traditional survey methods, like face-to-face and telephone interviews, have led survey practitioners around the world to seek new ways of conducting surveys in recent years." The COVID-19 pandemic exacerbated this problem because it made conducting face-to-face interviews even more difficult than before. For example, it made conducting face-to-face surveys infeasible in 2020 in South Korea, and so the Korean Academic Multimode Open Survey (KAMOS) was unable to conduct a planned face-to-face survey to recruit new panel members. The entire 8,514-member panel, established via two-stage probability-based sampling from 2016 to 2019, was invited to take three online/telephone surveys in 2020. Of these panel members, 1,352 responded to at least one survey in 2020. To test to what extent the panel remained representative of the adult South Korean population, we compared the two groups of panel members: those who responded to at least one survey in 2020 and those who did not. After weighting both groups on the basis of age, sex, and geographical area, we analyzed their responses to some of the questions that were asked during multiple rounds of the face-to-face panel-recruiting interviews. Using Cohen's d for survey items that could be analyzed numerically and Cramér's V for categorical items, we were able to conclude that the respondents to the 2020 surveys were equivalent to the non-respondents in terms of both demographics and in the answers they originally gave to substantive questions on a variety of topics related to social science or public opinion research, including questions about quality of life, societal issue, and politics (Cohen's d items <0.2, 95% CI; Cramér's V items <0.1, 95% CI). This analysis may provide a model for others who wish to test the continued representativeness of their panel or who would like to use a different survey mode or change some other aspect of their methodology and test whether it is equivalent to their former methodology. Our success in building a panel that retained its representativeness may be useful to those in other countries where face-to-face surveys had previously been the norm but are becoming increasingly difficult to conduct.

• Asian Journal of Business Environment
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• 제14권2호
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• pp.11-18
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• 2024

Purpose: The purpose of this study is to empirically evaluate the unintended welfare losses induced by paid sick leave, examine the severity of the unintended moral hazard loss caused by paid sick leave, and evaluate how much moral hazard cost society can accept to obtain paid sick leave benefits. Research Design, Data and Methodology: We examine the Medical Expenditure Panel Survey data collected in 2013 and 2014 by employing a panel probit analysis to control for individual heterogeneity. Results: The estimation result shows that the probability of absence due to paid sick leave increases from 4.91% to 7.84%. Among them, excluding the probability of increasing absence from 1.29% to 2.69% due to the actual disease, the probability of absence due to the moral hazard was estimated to be 2.41% to 6.49% in the proposed models. Based on the result, if we evaluate the increase in absence caused by moral hazard as a social cost, the estimated cost is approximately $174 to $297 per worker per year. Conclusion: Considering these expected costs, our society can obtain the access benefit from paid sick leave if we are willing to accept the moral hazard cost.

• 한국조사연구학회지:조사연구
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• 제11권2호
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• pp.1-28
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• 2010

본 연구는 인터넷 자원자 패널에 의한 사회조사 사례를 보고하면서 조사 자원자의 사회심리적 특성을 규명하고 패널표본의 편향성을 제거하기 위한 성향조정 가중법(propensity adjustment weighting)의 효용에 대한 정량적 평가 결과를 제시한다. 광역시 도, 지역크기(동 읍면), 성별, 연령대, 교육정도, 소비생활 만족도, 소득분배 견해, 일반신문 보기, 인터넷신문 보기 등 9개 요인을 조정 기준변수로 사용하여, 2009년 통계청 온라인 사회조사 자료(응답자 수 2,903명)를 같은 해에 지역추출 면대면(face-to-face, FTF)으로 실시된 통계청 사회조사 자료(응답자 수 37,049명)에 맞도록 성향조정 가중치를 적용하였다. 그 결과 106개 평가 문항 가운데 80% 정도의 문항에서 광역시 도, 동 읍면, 성별, 연령대 등 기본 인구지리적 변수에 의한 기본가중치 보정에 비하여 향상된 추정치를 제공하는 것으로 평가되었다. 이는 성향조정에 일부 한계가 있기는 하지만 자원자 패널에 의한 인터넷 조사를 향후 사회조사에서 활용해 볼 가치가 있음을 의미한다. 본 연구에서 준거조사(reference survey)로 쓰인 2009년 통계청 면대면 사회조사는 표본크기가 크고 일반적인 사회심리적 태도 문항과 인터넷 관련 행태 문항을 포함하므로 각종 인터넷 조사에서 준거자료로서의 활용가치가 충분히 있다.

• 보건행정학회지
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• 제31권2호
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• pp.232-239
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• 2021

This study aimed to update suicide-related indicators including suicidal ideation, suicide attempts, and the number of suicidal deaths. Based on up-to-date information, we observed the trends of suicide-related indicators. In this study, five data sources were used to observe the trends of suicide-related indicators: Statistics Korea (1983-2019), Korean National Health and Nutrition Examination (KNHANES, '07-13, '15-19), Korean Community Health Survey (KCHS, '08-09, '13, '17), Korean Wealth Panel Study (KOWEPS, '12-19), and Korea Health Panel Survey (KHP, '10-13, '16-17). The suicide rate, which peaked in 2011, declined until 2017 and then started to rise again from 2018, recording a suicide rate of 26.9 per 100,000 people in 2019. The rate of suicidal ideation estimated based on the recently available data was 4.62% (KNHANES, '19), 3.51% (KHP, '16), 2.87% (KHP, '17), and 1.70% (KOWEPS, '19). That of suicide attempt as recent year was 0.43% (KNHANES, '19), 0.07% (KOWEPS, '19). Annual percentage change of death by intentional self-harm was -2.11% (Statistics Korea), and that of suicidal ideation was -14.7% (KNHANES), -2.5% (KCHS), -10.6% (KOWEPS), and -11.3% (KHP). Annual percentage change of suicide attempt was -5.0% (KNHANES), -4.4% (KCHS), and -11.3% (KOWEPS). The lower the income level, the higher the probability of experiencing suicide ideation and suicide attempts. Considering the recent increase in suicide rate in contrast to the continuing decline in suicidal ideation and suicide attempts, continuous data observation and appropriate policies regarding suicide prevention are needed.

• 가족자원경영과 정책
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• 제21권3호
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• pp.141-159
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• 2017

The main purpose of this study is to investigate factors that influence sleep duration and sleep time poverty in terms of family characteristics, child characteristics, and time use. A series of data analyses were conducted on children's time use in two-parent families based on the 2013 Korean Children and Youth Panel Survey. One major finding is that children's sleep duration and the probability of having a sleep time poverty are related to their mothers' job classifications. The factors influencing the duration of sleep time and the sleep time poverty are similar in terms of family characteristics and children's time use. The mother's job classification, family income, number of younger siblings, number of older siblings, children's private tutoring hours, computer game hours, and TV hours are statistically significant factors affecting the duration of sleep time and the probability of having a sleep time poverty. However, the factor with greatest influence on sleep time duration is private tutoring hours and the factor most affecting sleep time poverty is computer game hours. The mother's job classification is a relatively powerful determinant for predicting her children's sleep duration and sleep time poverty.

• Animal Bioscience
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• 제35권4호
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• pp.527-532
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• 2022

Objective: In this study, we aimed to investigate the recent changes such as allele frequencies and total probability of exclusion (PE) in Thoroughbred horses in Korea using short tandem repeat (STR) parentage panels between 2006 and 2016. Methods: The genotype was provided for 5,988 horse samples with 15 microsatellite markers (AHT4, AHT5, ASB2, ASB17, ASB23, CA425, HMS1, HMS2, HMS3, HMS6, HMS7, HTG4, HTG10, LEX3 and VHL20). Results: In our study, the observed number of alleles per locus ranged from 3 (HMS1) to 9 (ASB17) in 2006 and 4 (HMS1) to 9 (ASB2) in 2016, with a mean value of 6.28 and 6.40, respectively. Of the 15 markers, HMS2, HTG4, and CA425 loci had relatively low polymorphism information content (<0.5000) in the Thoroughbred population. Mean levels of genetic variation in 2006 and 2016 were observed heterozygosity (H_O) = 0.708, and expected heterozygosity (H_E) = 0.685, as well as and H_O = 0.699 and H_E = 0.682, respectively. The PE was calculated for each group based on the allele frequencies of 14 or 15 STRs. The 2006 survey analyzed that PE was 0.9998, but it increased to 0.9999 in 2016 after the HMS2 marker was added in 2011. The current STR panel is still a powerful tool for parentage verification that contributes to the maintenance of integrity in the Thoroughbred population. Conclusion: The current STR panel is still a powerful tool for parentage verification that contributes to the maintenance of integrity in the Thoroughbred horses. However, continuous monitoring genetic variability is necessary.

• 노동경제논집
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• 제37권2호
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• pp.1-47
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• 2014

한국노동패널 자료에 나타난 개인임금 자료를 1998년부터 2012년 기간에 대해 분석한 결과 명목임금은 매우 유연한 것으로 나타났다. 프로빗 분석 결과 명목임금이 삭감될 확률은 인플레이션이 낮을수록 그리고 실업률이 높을수록 높게 나타났으며, 다양한 경제 인구학적 집단에 따라 다르게 나타났다. 한편 고용노동부의 사업체 조사와 한국노동패널 조사 자료를 비교 분석한 결과 실질임금은 매우 경기순행적이며, 그 경기변동 상 유연성은 인플레이션의 역할이라기보다는 명목임금 자체가 경기순행적이기 때문인 것으로 나타났다. 이상의 발견들은 임금경직성을 예측하거나 혹은 임금경직성 가정에 의존하여 실업변동을 설명하고자 하는 모형들의 현실 설명력을 반감시킨다. 추가적으로 본고는 임금 및 근로시간 변수에 나타난 측정오차의 문제를 다루고 있다.

• 재활복지
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• 제21권3호
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• pp.65-84
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• 2017

본 연구는 비경제활동을 지속하는 장애인들의 취업의사에 영향을 미치는 요인을 파악하기 위해 2014년 장애인고용패널조사 자료에서 2년 연속 미취업상태로 확인된 총 2,255명을 대상으로 $X^2$ 검증, t분석, 로지스틱 회귀분석을 실시하였다. 비경제활동을 유지하는 장애인들의 취업의사에 영향을 주는 요인을 파악하기 위해 선행연구에서 제시한 인구학적 요인, 장애 요인, 인적자본 요인, 심리사회적 요인을 가정하여 분석하였다. 분석 결과, 인구학적 요인에서 남성이거나, 배우자가 있거나, 기초생활수급자인 비경제활동 유지 장애인일수록 높은 취업의사를 가질 확률이 상승했다. 장애 요인 중 장애차별경험의 경우, 장애차별경험이 많을수록 비경제활동 유지 장애인들의 취업의사가 높을 가능성이 상승했으나, 이러한 결과는 구직활동에 적극적일수록 장애차별경험을 많이 경험하게 된다는 상관관계 측면에서 이해해야 할 것으로 보인다. 그리고, 인적자본 요인과 심리사회적 요인 중에서 활용능력(컴퓨터, 영어구사능력, 대인관계 및 적응능력), 직업재활서비스의 직업훈련 프로그램 이용 경험, 자아존중감 등의 세부 요인이 비경제활동 유지 장애인의 취업의사에 영향을 미치는 것으로 확인되었다. 이러한 결과를 바탕으로 본 연구에서는 여성장애인 취업지원 확대, 장애인의 활용능력과 자아존중감을 향상시키는 프로그램, 장애인 직업재활서비스의 전반적 확대와 접근 편이성 개선 등을 제안하였다.

• 한국인구학
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• 제26권2호
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• pp.197-219
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• 2003

이 논문은 젊은 맞벌이 부부들 상호간에 교육정도와 소득수준의 차이가 가족의 지리적 이동에 미치는 영향을 지위불일치(status inconsistency)라는 개념을 통해서 살펴보았다. 미국의 패널데이타인 National Longitudinal Survey of Youth 79를 이용하여 부부간의 지위불일치가 이동 성향과 이동 방향에 미치는 영향을 로지스틱 모형으로 분석한 결과는 다음과 같다. 우선, 아내의 교육정도가 남편의 교육정도보다 높은 부부일수록 아내의 교육정도가 낮은 부부에 비해 이동할 확률이 높은 것으로 나타났다. 한편, 남편과 아내의 지위불일치는 도시와 농촌간의 이동방향에는 영향을 미치지 않았다. 그러나, 지위불일치가 가족의 이동에 미치는 영향에 있어서는 성에 따른 차이가 나타났다. 여성의 경우, 배우자의 지위가 높을 경우 이것이 이동성향에 있어 유의미한 차이를 나타냈지만, 남성의 경우는 배우자의 지위가 상대적으로 높다할지라도 이동확률에 별다른 영향을 미치지 않는 것으로 나타났다. 이러한 결과들은, 자녀 유무와 연령이 통제될때, 가족의 지리적 이동확률과 방향은 아내와 남편간의 인적자본정도와 시장에서의 수익능력 차에 의해서 결정된다는 인적자본론이나 가족자원론과는 달리 전통적인 성역할 차이로 설명했던 성역할이론과 더 일치한다고 볼 수 있다.