• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.12
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• pp.491-497
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• 2018

This study analyzes the relationship between R&D input and performance using panel data from the defense industry. A research model is established based on the R&D logic model, and the study sample consists of a strongly balanced panel data (n=351) empirically analyzed using panel linear regression. Results identified that defense improvement expenditure has a positive influence on the R&D input, and R&D input positively affected patents using a 5-year time lag. In addition, R&D input positively impacts economic performance, including sales and profit. Hence, the major finding includes R&D inputs have statistically significant effects on economic outcome and the R&D logic model featuring a time-lag.

• Korean Journal of Construction Engineering and Management
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• v.19 no.2
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• pp.3-14
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• 2018

The system to appraise the execution capabilities of construction companies had been began as the Construction Contract Restriction System in 1958, was changed as the Construction Subcontract Restriction System in 1961, and finally has been operated as the Appraisal and Public Announcement of Execution Capacity (APAEC) from 1996. The APAEC system has been utilized as a firm and unique tool for assessing the execution capacities of construction companies despite many problems and continuous system changes. In spite of numerous studies to improve the APAEC system, however, efforts to analyze the system from the empirical point of view were insufficient. In this study, we analyze the status of APAEC system through analyzing correlations among assessment results of the APAEC, earned values of construction works, construction management performance indexes, and macroeconomic indexes for the past 10 years from 2007 to 2016. As a result of the analysis, it was found that Appraisal Value of Execution Capacity (AVEC) is excessively inflated in engineering and landscaping areas compared to Earned Value of Construction Work (EVCW) and the correlations between the AVECs and EVECs are not high in the areas of engineering, industrial equipment, and landscaping. In addition, technical appraisal values are excessively inflated in engineering and landscaping areas and correlations between AVEC and its components are high in the areas of engineering & building, industrial equipment, and large companies, but low in the areas of engineering, building, landscaping, and small and medium companies. Finally, the concentration of the AVEC is intensifying more and more and the concentration deteriorates construction management performance indexes and macroeconomic indexes. If we continuously improve the APAEC system based on the implications derived in this study, the APAEC system will be able to maintain it's position of a firm and unique means to access the execution capacities of construction companies.

• Environmental and Resource Economics Review
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• v.18 no.4
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• pp.587-635
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• 2009

The purpose of this study is to develop the Global Dynamic Computable General Equilibrium Model (Global CGE Model) in order to produce an economic impact analysis, including prospective obligations for the Post-2012 regime. This model explores the impact of an international emissions trading market and macroeconomic variables such as GNP, consumption, investment, imports and exports, in accordance with potential increased obligations on the Republic of Korea. Distinguishing it from existing studies, this Global CGE Model divides the global community into major economic groups, and in the capacity of the analyzed global model, reflecting the principle nations' macroeconomic indicators through the theoretical approach of endogenous growth theory. Policies such as an emissions trading scheme and carbon tax are reflected in the model. Also, in particular, the model reflects exogenous technological advances. According to this analysis, the stronger the greenhouse gas reductions, the greater the adverse effects on the economy; among macroeconomic indicators that appear, a significant decline is realized in the balance of trade, along with a significant decrease in investment and consumption. Energy dependence, in particular, plays a large role-varying in degree by industry type-, as greenhouse gas reductions would have a greater impact on energy-intensive industries. Furthermore, if Korea, currently recognized as a developing country, is given the obligation to reduce greenhouse gas emissions, competing countries such as China and other developing countries will be given an advantage.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.8
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• pp.3472-3477
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• 2011

Many researchers have studied to investigate causes of volatility and they have used macro economic variables. This paper defined the volatility as that of stock. Researches on the volatility of stock and corporate performances are not adequate yet. Therefore, this paper estimate the volatility and corporate performances using ROA and Tobin Q. Results show the following suggestions, first, there is negative effect on the volatility of stock when we use ROA as the corporate performances. Second, there is positive effect on the volatility of stock when we use Tobin Q as the corporate performances.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2012.06a
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• pp.250-251
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• 2012

지난 15년간 한국경제는 두 번의 금융위기인 1997년의 아시아 금융위기와 2008년의 글로벌 금융위기로 인해 엄청난 경제손실을 입었다. 이와 같이 우리 경제의 고유한 문제이기 보다는 외부에서 발생한 일련의 사건들은 GDP와 같은 국내 거시경제지표들뿐만 아니라 국내 항만들의 컨테이너처리물동량에도 많은 영향을 주었다. 본 연구에서 두 번의 금융위기를 독립적이며 상이한 형태의 외부의 영향으로 가정한 뒤, 국내 항만들의 컨테이너처리물동량에 어떤 영향을 주었는지에 대한 개입분석을 수행한다. 그래서 각기 다른 충격들에 대한 컨테이너처리량을 변화와 함께 그 충격들 간의 특성규명을 통해 우리나라 항만산업에 다양한 시사점을 제공하고자 한다.

• The Journal of Bigdata
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• v.2 no.1
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• pp.59-69
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• 2017

According to precedent research of disaster economics, most of the studies are either based on belated macroeconomic indicators or are limited to specific industries. It is certain that preventing disaster is important, but immediate analysis and reconstruction policy are crucial as well. This research analyzed the ripple effect of consumer spending followed by April 16 ferry disaster and MERS outbreak; it was done by applying credit card company's real-time big data with Marketing Mix Modeling. The main focus of this research is to see if it is possible to predict the scale of damage during ongoing disasters. It is found that setting up weekly MMM and moving the timeline draws significance conclusion. When disasters or events occur in future, this research may be the basis of building quick and intuitive indicator to monitor possible effects.

• Journal of Korea Port Economic Association
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• v.22 no.4
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• pp.81-98
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• 2006

Many studies on port tariff have been done over twenty years using publicly assessed data on tariff. Public data for tariff rates do not reflect, however, the port tariff in a real market, since the cargo handling charge, which is the important fraction of port tariff, is confidentially decided by the negotiations between a shipping company and a container terminal operator. In this paper, we collected the real price data of the port tariff on the world major sixteen container ports from a global shipping company and transformed it into the tariff per TEU(US$/TEU). The comparative analysis of port tariff was performed using the port tariff per TEU, and a panel regression analysis was done to identify the relations between the port tariff and demand variables: throughput, GDP and trade amount.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.17 no.11
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• pp.584-594
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• 2016

This research empirically analyzes, from an ecological perspective, whether socio-economic factors of the regions in which the elderly live have any actual influence on thoughts of suicide on the part of the elderly. Microscopic data either included outliers in part of the variables, including income and other variables of that type, from among source data from investigations into actual conditions of the elderly in 2014. Regarding macroscopic data, the indices that represent social and economic situations in each region, which were provided by KOSIS, were selected. Regarding the method of analysis, hierarchical or multi-level analysis models were applied by considering special hierarchical characteristics and heterogeneity at the personal and regional levels. The analyses showed that the following had statistically significant influences: 1. the cost-of-living index and the national basic supply and demand rate of the region; 2. the extent of natural disaster damage; and 3. the number of leisure and welfare facilities for the elderly, compared to the elderly population. Based on the results, proposals are made for systematic and practical endeavors in the community.

• Economic Analysis
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• v.26 no.2
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• pp.43-71
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• 2020

This paper aims to derive macroeconomic implications by analyzing the business cycle characteristics of the youth unemployment. The results of empirical analysis seem to show that youth unemployment appears to be relatively less correlated with business cycle compared to other age groups, and thus it is difficult to explain the recent steady increase in the potential labor force as a result of the business cycle fluctuation alone. Moreover, the alternative unemployment measures of the youth group showing upward trend were estimated to be co-integrated with output measures. This co-integrated trend increase suggests that unlike other age groups, youth may be influenced by structural factors inherent in Korea's economic growth path. The fact that the wage difference based on firm size has widened steadily since the Asian financial crisis and that the proportion of large companies that provide relatively high-quality jobs compared to major industrialized countries is significantly lower may be the evidence of the structural changes in Korean youth labor market. The results of above analysis may explain why the job search periods for youth has lengthened amid these structural changes.

• KDI Journal of Economic Policy
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• v.13 no.3
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• pp.113-133
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• 1991

본고(本稿)는 국민생활수준(國民生活水準)에 영향을 주는 주요 거시(巨視) 및 미시지표(微視指標)의 국제비교를 통하여 우리나라가 추구해 온 개발전략(開發戰略)을 재조명(再照明)하고 우리의 현재좌표(現在座標)를 검토코자 집필되었다. 자료(資料)의 제한(制限), 국제비교(國際比較)에서 흔히 제기되는 평가(評價)의 문제 등에도 불구하고 국제비교분석(國際比較分析)은 유용한 수단(手段)이었으며 다음과 같은 정책적(政策的) 함의(含意)를 얻을 수 있었다. 지금까지 한국(韓國)이 추구한 개발정책(開發政策)의 역점(力點)은 대체적으로 경제성장(經濟成長)에 두어져 왔었다고 분석되고 있다. 이는 높은 경제성장률(經濟成長率)이나 1인당(人當) 소득(所得)의 지속적인 증가를 통하여 소비수준(消費水準)의 제고와 소비구조(消費構造)의 개선 등 국민생활수준(國民生活水準)의 향상으로 연결되고 있다. 더불어 소득분배(消費分配)를 위시하여 보건(保健), 영양지표(營養指標) 등 사회지표(社會指標) 측면에서도 개선되는 추이를 보이고 있는 것으로 평가된다. 이와 같은 개발정책(開發政策)의 성공적(成功的) 결실(結實)은 국민복지증진(國民福祉增進)에 크게 이바지한 것임에 틀림없으나 사회복지향상(社會福祉向上)을 위한 적극적인 노력은 미흡하였다. 지속적인 고도성장(高度成長)의 결과 국민생활향상(國民生活向上)을 위한 기본요건(基本要件)인 1인당(人當) 소득(所得)이 크게 증가되어 빈곤인구(貧困人口)가 꾸준히 줄어들고 있으나 생활(生活)을 둘러싸고 있는 경제(經濟) 사회적(社會的) 환경은 상대적으로 열악(劣惡)해지게 되었다. 앞으로도 산업화(産業化)와 도시화(都市化)가 계속될 전망임에 비추어 국민생활(國民生活)과 직접적으로 관련되는 생활여건(生活與件)의 개선(改善)에 대한 각별한 정책적(政策的) 배려(配慮)가 요청된다고 판단된다. 따라서 경제(經濟)의 안정적인 운영과 함께 국민생활수준(國民生活水準)의 내실(內實) 있는 향상을 기해 나가자면 고도성장(高度成長)이 준 부작용(副作用)을 극소화해 나가야 할 것이다. 삶의 질(質)에 대한 수용할 만한 국민적(國民的) 욕구(慾求)를 과감히 받아들여 사회개발(社會開發)에 돌려지는 공적지출(公的支出)을 꾸준히 늘려나가되 일본(日本)의 경험이 시사하는 것처럼 비용효과적(費用效果的)인 지출이 되도록 제도적 장치가 강구될 필요가 있을 것이다. 국민생활수준(國民生活水準)의 개선은 장기적(長期的)인 시각(視角)에서 비전과 일관성을 지니고 추진되어야 할 성질을 지니고 있기 때문이다.