Development of ICT Statistics in Korea

최봉호,서찬일 통계청 2006 통계연구 Vol.11 No.1

Information society measurements are explosively gaining attention as the development of ICT and a rapid spread of Internet are altering social and economic activities of business, households and goverments. Compiling ICT statistics has been an urgent matter for many economies, and Korea is no exception in that respect. Firstly, this paper provides the measurement frameworks developed by OECD and Eurostat and then presents the initiatives which have been launched in Korea to measure the size, growth and nature of the information society. On the basis of the initiatives and the frameworks, this paper shows the trend analysis on the ICT industries as well as ICT usage and penetration in business and household sectors. This paper also deals with the classification issue on ICT sector, which is closely relevant with ICT statistics. As the United Nations is in the process of revising its International Standard Industrial Classification (ISIC) Revision 3 and plans to prepare ISIC Revision 4 by 2007, Korea needs to keep an eye on this change and to reflect the change into the Korean Standard Industrial Classification.

지역 수출입의 변동요인 추정에 관한 연구 : 부산지역을 중심으로

최봉호 한국산업경제학회 2005 산업경제연구 Vol.18 No.5

분얼형 (分蘖型) 옥수수 자식계통 및 교잡종의 특성

최봉호,이희봉,이원구 한국육종학회 1991 한국육종학회지 Vol.23 No.4

공적분분석을 이용한 지역 수출함수의 추정 : 부산지역을 중심으로 Forcusing on Busan

최봉호 한국국제통상학회 2004 국제통상연구 Vol.9 No.3

본 연구의 목적은 공적분분석을 이용하여 부산지역의 수출함수를 추정하고 이를 바탕으로 부산지역의 수출에 영향을 미치는 요인을 분석함으로써 정책적 함의를 도출하는데 있다. 분석방법은 우선 부산지역의 수출함수의 이론 및 추정모형을 도출한다. 그런 다음 수출모형의 추정에 사용된 변수들이 실제로는 모두 비정상시계열로 판명되고 있기 때문에 불안정시계열을 다루는 시계열 분석방법인 단위근(unit root)검정 및 공적분(cointegration)검정방법을 사용하여 수출함수 추정에 의한 부산지역 수출의 장단기적 성격을 파악한다. 주요 실증분석결과는 다음과 같다. 미달러환율의 부산지역 수출에 대한 관계는 마이너스를 보였는데 이는 환율상승이 부산지역의 수출을 오히려 감소시키는 것을 의미한다. 이러한 원인은 부산지역의 수출공급탄력성이 1보다 적은 데에 기인한다. 한편 세계경기가 부산지역의 수출에 미치는 영향은 양의 부호를 보이는데 세계경기가 좋아지면 수요가 증가하여 부산지역의 수출도 증가하는 것을 의미한다. 오차수정모형에 의한 추정결과는 환율은 OLS의 경우와 같이 부의 결과를 세계경기는 부산지역의 수출에 대한 영향은 양의 결과를 보였으나 통계적 유의성을 크지 않았다. 이러한 결과로 미루어 볼 때 부산지역의 수출은 환율과 세계경기에 상대적으로 덜 영향을 받고 있는 것으로 보인다. 따라서 부산지역의 수출구조는 환을 및 세계경기의 변동에 덜 민감하기 때문에 이들 변수들에 의한 정책적 효과를 기대하기는 힘들다는 것을 알 수 있다. The purpose of this study is to estimation Busan's export function using cointegration analysis, to analyze the effect of exchange rate and world business on local export and to induce policy implication. The major emprical results of the study are as follows: The relation of dollar exchange rate of American to Busan' export is minus and it means that the rising of exchange rate makes Busan' export decreased, it is caused that supply elesticity of Busan' export is less than unit. But the effect of world business on Busan' export is a positive, and means that ascension of world business gives rise to incresing of Busan' export. The result of estimation by error correction model says that the effect of exchange rate is negative and world business on export is a positive, but statistical significance did not large . And export was influenced by the former term's export. Busan' export is less influenced by exchange rate and world business than is by Busan' export itself. We can infer that export structure of Busan is insenstive to the flucturation of exchange rate and world business, so it is difficult for us to expect to policy effect from exchange rate and world business

한중일 FTA를 위한 한국산업 비교우위패턴의 동태적 변화와 안정성 분석

최봉호 한국무역통상학회 2016 무역통상학회지 Vol.16 No.1

The purpose of this study is to investigate the dynamic change and stability of comparative advantage of Korean industries and to apply the results to Korea-China-Japan FTA using the 2004-2013 data on SITC classification. Thus, we analyze revealed comparative advantage, market comparative advantage, trade specialization index, and Kernel Estimation of Density Function estimation based on Balassa index. Then, we apply the indexes measured to Korea-China-Japan FTA. The results are as follows. First, the number of Korea industries with continuous and stable comparative advantage is smaller than that of China and Japan. Second, the comparative advantage indexes of Korea industries have decreased over time. Third, the comparative advantage indexes of Korea industries including China and Japan industries have a stable trend and no large volatility. This results imply that there is high probability of China with more comparative advantage industries taking the initiative on Korea-China-Japan FTA and holding present comparative advantage pattern among three nations due to stability of comparative advantage.

분열형 옥수수 교잡종의 주경과 분얼경이 건물 및 종실수량에 미치는 기여도

최봉호,이희봉,김철민,김기훈,정재영,정종태,유종환 한국육종학회 1999 한국육종학회지 Vol.31 No.3

옥수수의 自殖系統과 交雜種의 初期 生育 比較

崔鳳鎬,李喜鳳 충남대학교 농업과학연구소 1984 農業技術硏究報告 Vol.11 No.2

This study was conducted to identify inbreds and hybrids by measuring plant height, root arid other characters at early growing stage. Five inbreds and four hybrids were used for the study and results obtained are as follows ; 1. Shoot and root length were significantly different between inbreds and hybrids even 5 days after germination. Slight differences within inbreds and hybrids were also observed. 2. Significantly different observations between inbred and hybrids for stem diameter, fresh weight, and dry matter of root and stem began to show 23 days after germination.

환율변동성과 컨테이너물동량과의 관계

최봉호 한국항만경제학회 2007 韓國港灣經濟學會誌 Vol.23 No.1

The purpose of this study is to examine the effect of exchange rate volatility on Trading Volume of Container of Korea, and to induce policy implication in the contex of GARCH and regression model. In order to test whether time series data is stationary and the model is fitness or not, we put in operation unit root test, cointegration test. And we apply impulse response functions and variance decomposition to the structural model to estimate dynamic short run behavior of variables. The major empirical results of the study show that the increase in exchange rate volatility exerts a significant negative effect on Trading Volume of Container in long run. The results Granger causality based on an error correction model indicate that uni-directional causality between trading volume of container and exchange rate volatility is detected This study applies impulse response function and variance decompositions to get additional information regarding the Trading Volume of Container to shocks in exchange rate volatility. The results indicate that the impact of exchange rate volatility on Trading Volume of Container is negative and converges on a stable negative equilibrium in short-run. Th exchange rate volatility have a large impact on variance of Trading Volume of Container, the effect of exchange rate volatility is small in very short run but become larger with time. We can infer policy suggestion as follows; we must make a stable policy of exchange rate to get more Trading Volume of Container 본 연구에서는 환율의 컨테이너 물동량에 대한 영향의 비중을 고려하여 외환위기 이후 환율변동성이 커짐에 따라 컨테이너 물동량도 상당히 영향을 받은 것으로 예상되기 때문에 환율변동성의 컨테이너 물동량에 대한 장‧단기적 영향을 체계적으로 분석하고 시사점을 도출하고자 한다 환율변동성을 도출하기 위하여 GARCH모형을 이용하여 우리나라의 환율 변동성 모형을 분석한다. 물론 구축된 모형을 분석하기 이전에 설정된 변수들과 모형의 안정성 검정을 위하여 단위근 검정과 공적분 검정을 실시한다. 또한 환율의 변동성이 컨테이너 물동량에 미치는 동태적 영향을 보기 위해 오차수정모형과 충격반응 및 분산분해를 실시하고 마지막으로 결론과 시사점을 도출한다. 분석결과 환율변동성을 포함시킨 컨테이너물동량함수를 회귀 분석한 결과 추정계수가 모두 이론적 예상과 부호가 일치하고 통계적 유의성도 높은 것으로 나타났다. 환율변동성은 우리나라의 컨테이너물동량에 부(-)의 영향을 미치는 것으로 나타났다. 환율변동에 의한 불확실성이 예상됨으로써 위험기피에 의하여 무역과 생산이 감소하고 이에 따라 컨테이너물동량도 영향을 받은 것으로 판단된다. 오차수정모형에 근거한 인과관계 검정에서 단기와 장기 모두 환율변동성에서 컨테이너물동량간의 일방적 인과관계가 존재하였다. 또한 충격반응함수에서 나타난 바와 같이 환율변동성 충격에 대하여 컨테이너 물동량은 부(-)의 영향을 받으며 그러한 부의 효과는 비교적 짧은 기간 내에 안정적인 추세로 수렴 된다. 예측오차의 분산분해의 결과는 환율변동성과 실질환율이 컨테이너물동량의 분산에 상당한 영향을 미치고 있음을 알 수 있다.

自殖된 多穗多蘖性 옥수수(MET)의 特性 比較 試驗

崔鳳鎬,李喜鳳 충남대학교 농업과학연구소 1985 農業技術硏究報告 Vol.12 No.2

The multiple ear and tiller line (MET), which was selected from a local maize collection and has been selected for earliness by selfing for five generations, was compared its plant characteristics with four U.S. leading hybrids. 1. The general plant growth was a little retarded by poor soil fertility and structure. 2. The fresh weight of the MET line was about 97.8% of the U.S. check varieties. 3. The dry weight of the MET line was also about 94.5% of the check U.S. hybrids (1,695 kg / 10a.). 4. The tillering and eating habits of the MET line had contributed toward increasing fresh and dry weight of the MET line. 5. The average plant height of the MET line was much less than those of the check varieties, due to the selfing depression manifested by the MET line, (234.7cm. of the MET vs 250.7cm. of the check) 6. Apparent differences of disease resistance was observed among varieties studied. The degree of plants infected with the black stripe mosaic virus was over 20% for the check U.S. hybrids, while less than 5% of the MET line was infected with the disease. 7. The grain yield per 10 a of the MET line was far below the check hybrids due to the inbreeding depression of the MET line. However, the kernel number per unit area of the MET line with small size kernel was much greater than that of the check hybrids. The 100 kernel weight of the MET line was around 10 grams. 8. The average fresh and dry matter weight of the three (sorghum × sudan grass) varieties was very much alike with those of the MET line. 9. In conclusion, the use of the MET line for silage production may have dual adventages because of its low seed price and of its small size kernels, which may reduce the amount of seeds required for planting in an unit area.

시장개방하의 한국제조업의 국제무역이 국내시장구조에 미친 영향

최봉호 한국산업경제학회 2000 산업경제연구 Vol.13 No.5