• Journal of the Korean Data and Information Science Society
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• v.28 no.1
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• pp.99-108
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• 2017

There are three official official demographics of the Republic of Korea: the population census, population projections, and resident population. Among these, the population projections estimates are based on population census statistics, which are conducted every five years. This study compared and analyzed the future population statistics and resident population statistics. In order to detect errors in the census process, we surveyed the outliers of demographic data. Based on these, we aimed to verify the reliability of official demographics. Resident registration demographics showed a tendency to increase as the age increased from 0 to 12 years, although the population had to decrease as the age increased. In the population projections, as the age increases from 18 to 28, a new population has developed and the population has increased. Also, in the resident population, between 2009 and 2010, in the population projections, between 2010 and 2011, there was a strange phenomenon that the population grew as a result of a new population as the age of all ages increased. Both official demographics need to be carried out through more accurate verification. Increasing the reliability of the aged population survey on the elderly population statistics will provide greater efficiency in establishing administrative policies.

• The Korean Journal of Applied Statistics
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• v.33 no.2
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• pp.185-201
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• 2020

Scenario population projection reflects the high probability of future realization and ease of statistical interpretation. Statistics Korea (2019) also presents the results of 30 combinations, including special scenarios, as official statistics. However, deterministic population projections provide limited information about future uncertainties with several limitations that are not probabilistic. The deterministic population projections are scenario-based estimates and show a perfect autocorrelation of three factors (birth, death, movement) of population variation over time. Therefore, international organizations UN, the Max Planck Population Research Institute (MPIDR) of Germany and the Vienna Population Research Institute (VID) of Austria have suggested stochastic based population estimates. In addition, some National Statistics Offices have also adopted this method to provide information along with the scenario results. This paper calculates the demographics of Korea based on a probabilistic or stochastic basis and then draws the pros and cons and show implications of the scenario (deterministic) population projections.

• Journal of the Korean Statistical Society
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• v.10
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• pp.35-53
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• 1981

어느 국가이든 농업통계는 그 나라의 농업생산량, 생산가능성 및 식량수급은 물론 농업정책수립, 국토 및 경제개발계획수립의 기본이 되고 있다. 최근 모든 산업이 고도로 발달되고 세분화되며 국민의 지식수준이 높아짐에 따라 통계도 필연적으로 다양화되고 있는 것이 사실이다. 소규모의 영농에도 시장정보가 필요하게 되고 이에 부응하여 통계의 필요성은 더욱 고조되고 있다. 특히 1970년대를 접어들면서 급격한 국내산업 발달과 인구의 증가는 우리나라의 식량문제를 더욱 심각하게 만들고 따라서 식량수급계획을 위해서는 정확한 생산 및 소비량통계가 필요하게 되었고 공식 발표된 농업통계는 많은 사람들의 관심의 대상이 되고 때로는 그 정확성 여부에 많은 논란이 있기도 하다. 이는 실제로 조사발표된 통계가 여러가지 악조건하에서 조사되었기 때문에 자료수집과정에서 약간의 미흡한 점이 있을 수도 있겠으나 근본적으로는 통계에 대한 인식부족에서 오는 오해에 연유된 것도 많다고 본다. 농업자체가 타산업에 비하여 구조가 다르며 특히 우리나라에서는 영농의 복잡성 때문에 실제로 조사하는데도 여러가지 문제점과 제약 조건이 많다. 어려운 여건하에서도 그동안 많은 발전을 보았으나 농업통계 개선을 위하여 계속연구 검토해야 할 것이다. 본 연구에서는 주로 농수산부에서 분류한 기준에 따라 기본통계, 농산물생산통계, 농가경제통계, 생산비통계, 농산물유통 및 가격통계를 중심으로 검토코져 한다.

• 한국노년학
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• v.36 no.3
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• pp.711-726
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• 2016

The purpose of this study was to analyze to 1) the differences according to demographic characteristics 2) select the type-specific communities online channels of the baby boomer customers group, who ever search for restaurant information through on-line for the previous three months. The study was based on a total of 280 samples obtained from on-line networking service users in a metropolitan area from April 15 to 30, 2016. The major findings are as follows. The data were analysed using frequency, factor analysis, cluster analysis and ${\chi}^2test$. According to the results of factor analysis, on-line utilizing attributes were separated into three factors: commitment of useful information, activity of leading on-line, and habit. The based on a factor analysis, cluster analysis was adopted to segment baby boomer customers. The identified four clusters showed in using on-line: type of active utilization, habit, seeking information and passive utilization. The clusters had significant differences in gender and monthly income by demographics. All of four clusters selected blog, face book, twitter in turn through the personal on-line channels. Cluster type of active utilization and habit selected restaurant home pages, restaurant blog, restaurant face book, restaurant twitter in turn through the public on-line channels. Cluster type of seeking information and passively utilization selected restaurant home pages, restaurant blog, restaurant twitter, restaurant face book in turn through the public on-line channels. Implications and future research were also discussed.

• Proceedings of the Korean Society of Community Living Science Conference
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• 2003.11a
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• pp.160-161
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• 2003

농촌생활 전반에 대한 생활수준 진단과 농촌주민들의 의식과 욕구를 정확하게 파악하여 미래 농촌생활의 모습을 예측하는데 있어서 종합적인 지표 및 표준화된 실태에 관한 통계자료는 필수적이라 할 수 있다 그러나 우리 나라에서 생산되고 있는 공식통계 중 농촌생활을 종합적으로 다루고 있는 자료는 미흡한 실정이다. 이러한 필요성에 의해 농촌생활연구소에서는 1994년 농촌생활지표를 인구 및 사회, 식생활, 건강생활, 주거 및 환경, 가정경제, 교육 및 교양, 여가생활, 가족생활 등 8개 부문을 기본틀로 하여 1994년, 1999년 두 차례에 걸쳐 $\boxDr$농촌생활지표$\boxUl$ 집을 발간한 바 있고, 2000년부터는 이들 지표 중 기존 통계자료 이용이 불가능한 82종의 지표항목에 대해 3년 주기로 직접조사를 통해서 자료를 생산하게 되었다. 여기서는 2002년에 조사한 주거 및 환경. 가정경제, 교육 및 교양부문 중, 교육 및 교양부문의 조사결과를 제시 하고자 한다.

• Korea journal of population studies
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• v.22 no.2
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• pp.97-119
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• 1999

한국, 일본, 미국의 생명표, UN의 인구연감, WHO의 세계보건통계연감 등 공식통계를 활용하여, 한국 노인의 기대여명 및 사망원인별 사망력을 미국 및 일본과 비교하여 파악하고 있다. 한국 노인의 기대여명은 미일보다 빠른 속도로 증가하고 있는데, 1970년대 중반 이후는 미국처럼 여자보다 남자 노인의 기대여명 증가가 빠르면서, 남녀 노인의 기대여명 차가 감소하고 있다. 1997년 현재 65세시 기대여명은 남자 13.64세, 여자 17.26세로 남녀간 3.62세 차이를 보이며, 출생후 남자 72%, 여자 88%가 65세까지 생존한다. 노인의 주요 사인은 미일과 마찬가지로 순환기계질환 및 악성신생물인데, 순환기계질환중 한일은 뇌혈관질환이, 미국에서는 허혈성 심장질환이 노인의 주된 사망원인이 된다. 한국 남녀 노인의 연령층과 상관없이 허혈성 심장질환 및 폐렴 사망률은 미일보다 낮고, 뇌혈관질환, 고혈압성질환, 위암, 간암, 결핵, 당뇨병, 정신 및 행동장애, 간질환 및 교통사고 사망률은 미일보다 높다. 대부분의 사망원인에서 남자사망률이 여자사망률보다 높지만, 한국의 고혈압성 질환, 간암, 폐암 및 간질환에 의한 성별 사망률 격차가 미일보다 크며, 한미일 모두 75세 이상 노인의 정신 및 행동장애에 의한 여자 사망률보다 남자사망률보다 높게 나타난다. 사망원인 생명표 작성결과를 보면, 1997년 현재 한국의 65세 남성과 여성은 순환기계질환 제거시 각각 3.47년과 2.7년을, 악성신생물 제거시 각각 3.87년과 1.58세의 기대여명 증가를 예상할 수 있고, 일본에 비해 특정 사인을 제거시 상대적으로 많은 기대여명 증가를 기대할 수 있는 사망원인은 남자 노인의 간질환 및 교통사고를 들 수 있다.

• Journal of the Korean Data and Information Science Society
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• v.24 no.6
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• pp.1199-1210
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• 2013

The high unemployment rate is one of the major problems in most countries nowadays. Hence, the demand for small area labor statistics has rapidly increased over the past few years. However, since sample surveys for producing official statistics are mainly designed for large areas, it is difficult to produce reliable statistics at the small area level due to small sample sizes. Most of existing studies about the small area estimation are related with the estimation of parameters based on cross-sectional data. By the way, since many official statistics are repeatedly collected at a regular interval of time, for instance, monthly, quarterly, or yearly, we need an alternative model which can handle this type of panel data. In this paper, we derive the generalized kernel estimating equation which can model time-dependency among response variables and handle repeated measurement or panel data. We compare the proposed estimating equation with the generalized linear model and the generalized estimating equation through simulation, and apply it to estimating the unemployment rates of 25 areas in Gyeongsangnam-do and Ulsan for 2005.

• Korea journal of population studies
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• v.35 no.1
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• pp.101-130
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• 2012

This study examines mortality change in North Korea and its association with state production and welfare systems. Two main subjects are analyzed. The first theme is to examine the reliability of mortality related data released by North Korea government authorities. Examining inner consistencies among mortality related statistics and comparing with mortality trends in other socialist societies, the study finds that mortality rate was under estimated. Under-estimation of mortality by North Korean authorities is regarded to result not only from political purpose which aims to propagate the regime's superiority but also from enumeration errors of vital statistics based on the residence registration. The second theme is to estimate the change in mortality of North Korean people since the establishment of DPRK, correcting errors of mortality data. Mortality of North Korean people is estimated to have improved largely by the early 1970s, to have been sluggish hereafter, and finally to have increased during the economic hardship period between 1993 and 2008. While large people died during the food crisis in the late 1990s, however the population loss caused by mortality increase was not so great as the proposition of the huge starvation was expected. It is partly because population turbulence occurred not just by mortality increase, rather it has progressed in the joint effects of fertility decline and exodus of North Korean people for food. It is also due to North Korean people's voluntary activities of informal economy. It is also worth noting the high mortality rate of North Korean men. The high mortality of North Korean men is likely due to men's mobilization for long time in army and labor with high risk of accident and their life styles.

• The Korean Journal of Applied Statistics
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• v.21 no.4
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• pp.665-674
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• 2008

Most of existing studies about the small area estimation deal with the estimation of parameters based on cross-sectional data. However, since many official statistics are repeatedly collected at a regular interval of time, for instance, monthly, quarterly, or yearly, we need an alternative model which can handle characteristics of these kinds of data. In this paper, we investigate the generalized estimating equation which can model time-dependency among response variables and is useful to analyze repeated measurement or longitudinal data. We compare with the generalized linear model and the generalized estimating equation through the estimation of unemployment rates of 25 areas in Gyeongsangnam-do and Ulsan. The data consist of the status of employment and some covariates from January to December 2005.

• Korea journal of population studies
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• v.28 no.2
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• pp.219-243
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• 2005

This paper reviews research outputs in Korea Journal of Population Studies (KJPS) and the changes in their contents during the period of 1977-2004. In the early years of KJPS, various types of outputs were published, but changes have been made into a direction that research articles compose the main context of the journal. As the journal published twice a year, the total number of articles of the journal shows a trend of marked rise. An analysis of the themes of articles shows that the trend of research in Korean demography has changed hand in hand with transformations of the Korean society. The traditional topics such as population policy, fertility, mortality, and migration were popular before. Labor force, nuptiality, family, aging, regional studies are found to be more popular themes of research recently. Reflecting academic and social demands, KJPS has a broaden range of authors, such as professor, researcher, a government employee, post-doc, and graduate students. The articles written by those working in universities have increased continuously, while research outputs of research institutes have decreased recently. The data for analysis used in articles are varied from but concentrated in some materials - census, vital statistics and various survey data. In early years of KJPS, relatively simple techniques of analysis were adopted in the majority of articles. However, more sophisticated techniques including applied regression analysis, logistic analysis and analysis of survival ratio turn out to be more popular recently. Finally, several suggestions for the future research are presented in this paper.