• Korea Real Estate Review
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• v.24 no.1
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• pp.27-37
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• 2014

Recently increasing the supply of housing policy has not been able to reflect social phenomena as like decreasing birth rate, aging of the population and increasing 1 or 2 person households. This study analyze the housing demand in the city with the point of population growth rate and economic character changes. Growing cities have positive population growth rate and economic character, but shrinking cities have the opposite. By comparing housing demand of growing cities and shrinking cities, we want to find out housing policy implications. In this study, results suggest that the peak age of housing demand of shrinking cities is the late 60's. But the growing cities's age peak is the mid-80's. But further analysis of the economic variables and 1 or 2 person old and young household dummies, the result is that the peak age of housing demand is reduced. These results suggest that housing demand should be differentiated the cities's population structure and economic characteristics of the household. In short, housing demand will vary depending on the condition of individual cities.

• Journal of Korean Society for Geospatial Information Science
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• v.11 no.2 s.25
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• pp.17-28
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• 2003

Since 1970s, Seoul Metropolitan Area has been growing in physical and demographic aspect. A number of new urban fringes, New City, had been particularly developed from the early of 1990s. To examine the urban growth, the population density maps are generally used to the efficient urban management tool. The density maps from political boundaries, however, were traditionally used to estimate an urban concentration, there is problems to apply directly to urban management decision making due to (i) the abrupt changes between boundaries and (ii) the inclusion of green areas and forests in these areas. The mass-preserving interpolation method, the Pycnophylactic interpolation, could provide more realistic density maps. In addition, the classified urban areas from satellite images corresponding years would turn out to be more reliable results since populations were only applied to urbanized areas. Even though the Pyconophylactic method makes the density larger, it would be useful to produce a general urban growth trend at large scale. Consequently, four different density maps are compared and reviewed for this study, and the cross-sectional analysis provided to glimpse of population density around the city center.

• Korean Journal of Ecology and Environment
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• v.46 no.3
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• pp.395-408
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• 2013

Environmental condition can induce changes in early life-history traits in order to maximise the ecological fitness. Here I investigated how temperature change and variation in human aquatic activity/behaviour affect early life-history consequences in fish using a dynamic-state-dependent model. In this study, I developed a general fish's life-history model including three life-history states depend-ing on foraging activity, such as body mass, mass of reproductive tissue (i.e., gonadal development) and accumulated stress (i.e., cellular or physiological damage). I assumed the level of foraging activity maximises reproductive success-ultimately, fitness. The model predicts that growth rate, development of reproductive tissues and damage accumulation are greater in higher temperature whereas higher human aquatic activity rapidly reduced the growth rate and development of reproductive tissue and increased damage accumulation. While higher foraging activity in higher temperature is less affected by human aquatic activity, the foraging activity in lower temperature rapidly declined with human aquatic activity. Moreover, lower survival rate in higher temperature or human aquatic activity was independent on mortality rate due to human aquatic activity or mortality rate when foraging activity, respectively. However, the survival rate in lower temperature or human aquatic activity was dependent on these mortality rates. My findings suggest that including of early life-history traits in relation to climate-change and human aquatic activity on the analysis may improve conservation plan and health assessment in aquatic ecosystem.

• Korea journal of population studies
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• v.31 no.1
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• pp.27-54
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• 2008

The purpose of this study is to analyze the effect of policy boosting fertility and labor participation rate on potential GDP growth rate. To do this, we employ a growth accounting approach, which decomposes per capita GDP into two parts. The first one is the change of dependency ratio and the other is the change of labor input. The labor input is again decomposed into the qualitative and quantitative parts. The quantitative part considers the change of labor participation rate and working time. The qualitative aspects is based on the trend of productivity of labor. From the scenarios of NSO(National Statistics Office), the effect of the fertility-raising policy on per capita potential GDP growth rate is calculated and projected to the year of 2050. We also forecast the policy effect inducing high labor participating rate of female labor and beyond 55-year old labor. The baseline results show that the per capita GDP growth rate will show mid 4% to the year of 2010, gradually declining to 3.94% by 2020, 3.03% by 2030, 2.41% by 2040. The high fertility rate scenario will not have effects on the potential growth by 2030, but show 0.10%p higher per capita GDP growth rate than that of baseline scenario result. By the high female labor participation policy, the per capita GDP growth rate will reach 0.04%p higher per capita GDP growth rate than that of baseline scenario. Based on the results of this paper, we conclude that the quantitative labor input cannot solely account for the trend decline of potential GDP, and the qualitative aspect, like labor productivity, is much more important element to sustain and boots the economic growth.

• Journal of the Korean Geographical Society
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• v.26
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• pp.15-51
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• 1982

이 글에서는 다음의 내용을 다루었다. 1. 마산의 입지조건과 합포.마산포의 형성, (1) 마산의 입지조건, (2) 합포와 포산포의 형성 2. 신마산의 등장과 단일욱시의 성립, (1) 신마산의 등장, (2) 단일욱시의 성립 3. 마산의 인구팽창과 동마산의 성장, (1) 마산의 인구팽창, (2) 동마산의 성장, (3) 마산시의 입체경관(skyline)

• Journal of the Korean Statistical Society
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• v.6 no.1
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• pp.47-63
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• 1977

인구가 성장한다는 사실과 함께 인구가 지역적으로 이동하는 현상은 사회과학에 있어서 중요한 연구대상이 되어왔다. 전통적으로 인구의 동학적 측면은 사회학의 주된 연구대상이 되어왔으며 근래에는 인구학(demography)이라는 새로운 독립과학의 분과로서 더욱 이 분야에서의 연구의 심도와 폭이 확대되었다. 그러나 인구의 동학적 측면을 인간의 경제형태의 일환으로 관찰할 수 있는 기회와 가능성이 점차적으로 크게 부각되자 전통적인 경제이론을 적용함으로써 이러한 문제를 분석/구명하고자 하는 동향이 나타나게 되었다. 특히 인구의 단기적 지역간 이동이 경제사회의 질적인 변화와 이에 따르는 산업구조간의 노동력 균형의 재조정에 따라 원인되고 있다는 사실은 인구의 동학적 측면에 경제학적 분석이 당연히 이루어져야 한다는 요구를 초래시키기에 이르렀다.

• The Science & Technology
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• v.29 no.9 s.328
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• pp.32-33
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• 1996

1972년 창립된 한국인구학회는 그동안 정부의 인구억제정책의 입안과 실시에 학문적으로 뒷받침해 한국경제의 고도성장에 크게 이바지했다. 현재 3백여명의 회원을 두고 있는 한국인구학회는 매년 두차례 정기학술발표회를 개최하고 있으며 연2회 기관지를 발행하는 등 광범한 학술활동을 계속해 오고 있다.

• Korea journal of population studies
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• v.21 no.1
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• pp.5-41
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• 1998

Over the past 30 years, Korea experienced demographic transition which typically substitutes quality(education) for quantity(number) of population. This paper decomposed labor supply into quantity and quality aspects and estimated the respective employment elasticities of economic growth in the past. Then, based on the assumptions about the future population (by age, sex and education) and labor force participation rates, the future labor supply(both quantity and quality) is projected and growth potential of the Korean economy is evaluated. The result shows that labor supply in Korea is relying gradually more on the qualitative rather than the quantitative aspect but since the increase in the former will not fully compensate the decrease in the latter, the potential growth rate of the Korean economy will be substantially reduced in the futrue.

• Korea journal of population studies
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• v.29 no.1
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• pp.241-268
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• 2006

This study aim to examine the optimum population in Korea, which has the lowest fertility rate in the world. This study has significance because this rapid decline in the fertility rate is expected to bring the decrease of the population and unbalance in the population composition in Korea. From the social welfare perspective, the optimum population is guided by maximization of the social welfare level per person or the social welfare level in a society. The optimum population can be defined as follows: The proportion of older adults 65 and over is 15-17%, the proportion of work force is 64-69%, the index of aging is 72-104. Within the current population and population composition, the optimum population is estimated as 4.85-4.95 million. These findings imply that we need to remove causes of low fertility rate and prepare for policies encouraging immigration of labor force from foreign countries. In addition, policies and programs where children can be grown up in good environments and women and older adults can participate in labor force should be established.

• Journal of the Society of Disaster Information
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• v.13 no.2
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• pp.221-232
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• 2017

We analyzed the effect of urban disaster on urban growth in 82 cities in Korea. It is interesting to note that violent crime has a positive (+) relationship with income growth, and other theft crime and violent crimes have a negative relationship with anticipated crime. Disaster accidents and incidents do not have a direct effect on employment and population growth, and are the result of rejecting hypotheses presented in previous studies. Finally, although the three indicators representing urban growth, that is, income, employment, and population, have different characteristics of statistical data basically, they show significant differences in explanatory power even though they use the same explanatory variables. This result suggests a new research task in addition to suggesting the use of the three indicators.