• Title, Summary, Keyword: 이가율

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Regional Comparative Analysis of the Economically Active Population Ratio by Sex (남녀별 경제활동참가율의 지역별 비교분석)

  • Park, Jong T.;Jang, Hee S.
    • Journal of Service Research and Studies
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    • v.4 no.1
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    • pp.71-81
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    • 2014
  • It is important for regional comparative analysis about economically active population ratio by sex and total economically active population ratio to a policy data of central and local government. Through the result of comparative analysis, Central and local government can use policies distinctively according to the region and keep the efficiency of detail policy application. This paper shows regional comparative analysis about economically active population ratio by sex for the Seoul metropolitan region, Gangwon region, Chungcheong region, Youngnam region, Honam region using the economically active population survey data in 16 cities and provinces. We used the survey of economically active population for 13 years from 2000 to 2012, we calculated total economically active population ratio and economically active population ratio by sex about the 5 regions. And we analyzed the relative ratio between economically active population ratio of male and female by each region, we also analyzed the results of regional comparative analysis by sex.

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Chaos analysis of real estate auction sale price rate time series (부동산 경매 낙찰가율 시계열의 Chaos 분석)

  • Kang, Jun;Kim, Jiwoo;Lee, Hyun Jun;Oh, Kyong Joo
    • Journal of the Korean Data and Information Science Society
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    • v.28 no.2
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    • pp.371-381
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    • 2017
  • There has never been research on Chaos analysis using real estate auction sale price rate in Korea. In this study, three Chaos analysis methodologies - Hurst exponent, correlation dimension, and maximum Lyapunov exponent - in order to capture the nonlinear deterministic dynamic system characteristics. High level of Hurst exponent and the extremely low maximum Lyapunov exponent provide the tendency and the persistence of the data. The empirical results give two meaningful facts. First, monthly time lags of the correlation dimension are coincident with the time period from the approval auction start day to the sale price fixing day. Second, its weekly time lags correspond to the time period from the last day of request for sale price allocation to the sale price fixing day. Then, this study potentially examines the predictability of the real estate auction price rate time series.

A Study of Process Model for Estimating Optimal Bidding Rate in the Lowest Bidding System (최저가낙찰제도의 적정 낙찰가율 산정을 위한 프로세스 모형 연구)

  • Ahn, TaeHyoun;Seo, HwaJin;Choi, GwangYeol;Kang, LeenSeok
    • Journal of The Korean Society of Civil Engineers
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    • v.31 no.5D
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    • pp.719-726
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    • 2011
  • The government intensifies screening criteria for the guarantee of reasonable bidding price and the prevention of low bidding price, however, the low tender rate still becomes an issue. This study analyzed the problems of screening criteria for the guarantee of reasonable bidding price, and then derived some major issues such as the restriction of decisive factors for initial construction cost, the rate of activities over five percent of surveyed price and the restrictive review criteria of inadequate activities. To solve thess problems, this study suggests an improved process model for estimating optimal bidding rate that can select a contractor with the guarantee of reasonable bidding price.

The Effect of Firm's Market Power on Job Creation in Korea (사업체의 시장지배력이 일자리 창출에 미치는 효과)

  • Kwon, Hye Ja;Cho, Woo Hyun
    • Journal of Labour Economics
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    • v.29 no.1
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    • pp.99-127
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    • 2006
  • This paper examines the effect of the market power of firms in the product market on job creation, job destruction and net job growth. It uses the reconstructed establishment data in the Korean Annual Mining and Manufacturing Survey between 1982 and 2002. This paper shows that job creation has continuously declined since the late 1980s and the decline is common for both market-dominant and competitive firms. The effect of market dominance on job creation is negative, controlling the firm-characteristics variables such as firm size and firm age.

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Comparison of Synchronization Phenomenon & the Changing Rate of the Charter Rates by major cities - Korea, Seoul, Busan, Daegu, Gwangju, Daejeon - (주요 도시별 전세가율의 동조화 현상과 변동률 비교 - 전국, 서울, 부산, 대구, 광주, 대전 -)

  • Choi, Jeong-Il;Lee, Ok-Dong
    • Journal of Digital Convergence
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    • v.18 no.2
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    • pp.197-204
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    • 2020
  • The purpose of this paper is to find the direction by analyzing the synchronization phenomenon and the change rate of apartment charter rate in Korea, Seoul, Busan, Daegu, Gwangju and Daejeon. For this purpose, this study used a total of 239 monthly data from January 2000 to November 2019 in Kookmin Bank housing statistics. In the correlation analysis, Korea showed the highest relationship in order of Seoul, Busan, Incheon and Daegu. Seoul showed a low figure of 0.3 without any distinctive features from other cities. On the other hand, Busan, Daejeon and Daegu showed high correlations. As a result of the regression analysis, Korea and 5 major cities were all moving in the same direction with positive(+) values. And Busan and Seoul responded significantly to Korea. In the shock response, Korea is most shocked by the change in Seoul. Daegu is relatively shocked by Busan and Daejeon. Seoul's charter rate has declined most strongly in the last three years. Therefore, it is time to be careful not to incur losses due to gap investment. If we look at the relationship between the charter rate and the sale price in future studies, we can better understand the Korean apartment market.

세계 자동차 타이어산업 전망

  • Korea Tire Manufacturers Association
    • The tire
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    • pp.40-51
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    • 1985
  • 본고는 84년 일본 Exxon Chemical 에서 조사, 발표한 전세계 지역별 타이어 수급실적 및 장기예측을 요약정리한 것이다. 특히 본자료에서는 타이어산업의 년간평균증가율의 장기전망과 타이어 수출입동향, 또 Radial 타이어와 Tubeless 타이어의 생산비율 등을 추정분석하였다.<편집자주>

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지혜 깊어지는 건강_우리 아이를 위한 1분 건강 - 가을철 알레르기로부터 우리 아이 지키기

  • Lee, Yun-Mi
    • 건강소식
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    • v.35 no.10
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    • pp.28-29
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    • 2011
  • 가을도 중턱에 닿았다. 파란 하늘, 황금빛 들판, 알록달록 단풍과 낙엽, 시원한 날씨 덕분에 현장학습, 가율소풍 등 아이들의 야외활동이 유독 많은 10월이다. 그런 만큼 아이들 건강에 신경 써야 한다. 가을마다 잊지 않고 찾아오는 감기, 가을철 알레르기 등 아이들은 질병에 노출되어 있기 때문이다.

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Gab Theory and Minimal Intuition on Truth (간극이론과 진리에 대한 최소직관)

  • Lee, Jinhee
    • Korean Journal of Logic
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    • v.19 no.2
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    • pp.145-184
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    • 2016
  • Williamson(1994) proved incompatibility of Gab Theory and Tarski T-schema. But this does not means that Gab Theory could not involve intuition on truth that is expressed by T-schema. I will show that Gab Theory and mutual entailment of 'p' and 'it is true that p'(p⊨T

    and T

    ⊨p) are compatible. It will draw that Gab Theory can involve minimal intuition on truth. After all what I want to reveal is logical space for Gab Theory through the compatibility of the mutual entailment and negation of the Principle of Bivalence. To prove the compatibility, I will present a consequent relation which should be accepted whenever we accept Gab Theory and demonstrate Gab Theory and the mutual entailment imply following two thesis; 1) not-T

    and T are not equivalent. 2) p entails T

    but not-T

    does not entails not-p.

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Effect of Combining Wood Particles and Plastic(Polypropylene) Screen on the Physical and Mechanical Properties of Board (목재(木材)파이티클과 플라스틱(폴리프로필렌) 망(網)의 결체(結締) 보오드의 물리(物理) 및 기술적(機械的) 성질(性質)에 미치는 영향(影響))

  • Lee, Phil-Woo;Park, Heon
    • Journal of the Korean Wood Science and Technology
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    • v.16 no.1
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    • pp.21-44
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    • 1988
  • As a way for the effective utilization of pallman chips and sawdusts, these furnish materials were combined with non-woody material of plastic (polypropylene) screen in board manufacturing to improve their weak physical and mechanical properties. The conventional boards were made with conditions of specific gravity 0.40, 0.55, 0.70, and 0.85, resin content 8, 10, 12 and 14%, and number of polypropylene screen 1, 2, 3 and 4, and press-lam boards were also manufactured. The physical and mechanical properties were measured and discussed on thickness swelling, bending modulus of rupture and elasticity, tensile strength, internal bond strength, and screw holding strength. The results obtained at this study were summarized as follows: 1. In thinckness swelling both of pallman chip board and sawdust board were improved by the increase of resin content, and press-lam boards showed lower thickness swelling than conventional boards. 2. Both the modulus of rupture and elasticity were increased with the increase of specific gravity, and press-lam boards showed higher modulus of rupture and elasticity than conventional boards. On the other hand, modulus of rupture was increased with the increase of number of polypropylene screen and resin content whereas these effects in modulus of elasticity was not recognized. 3. Tensile strength was increased with the increase of specific gravity, and the boards combined with polypropylene screen showed higher tensile strength than control boards. Also tensile strength was increased with the increase of number of polypropylene screen, and press-lam boards revealed higher tensile strength than conventional boards. 4. Internal bond strength was increased with the increase of specific gravity, and the boards combined with polypropylene screen were lower in internal bond strength than control boards. Also, the boards combined with odd number of polypropylene screen showed lower internal bond strength than those combined with even number of polypropylene screen. 5. Screw holding strength was increased with the increase of resin content and specific gravity but significant difference was not approved between boards combined with polypropylene screen and control boards. In press-lam boards, pallman chip boards of higher specific gravity but sawdust boards of lower specific gravity showed better screw holding strength than control boards.

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The Effects of Demographic Factors on the Change of Female Labor Market (여성인구변동과 노동시장)

  • Chang, Ji-Yeun
    • Korea journal of population studies
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    • v.21 no.2
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    • pp.5-36
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    • 1998
  • This study examines the change of female labor market structure during the last several decades, focusing the effects of demographic factors such as declining fertility and increasing educational attainment of women. Women of the recent cohort tend to postpone their first marriages, to attain higher levels of education, and to have smaller number of children than women of the old cohort. This demographic trend results in the change of the population compositions in a way that population subgroups with high labor force participation have been increased. In addition, women of each population subgroup supply their labor in the market with higher rate than their old cohort counterparts. The labor force participation rate of highly educated women, and of married women has been increased faster than that of women with low education and of unmarried women. Although childbirth is still one of the most critical barrier for the women's participation, more and more women with young children tend to work for pay than ever before. In spite of the demographic change which is supportive to the increasing labor force participation, the Korean labor market have lost its female participants for the last year of the economic restructuring, reflecting demand-side factors as well as demographic factors are essential to determine the labor force participation of women.

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