• Korea journal of population studies
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• v.26 no.1
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• pp.59-77
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• 2003

This study conducts empirical research on gender differentials of economic resources in old age. The economic resources are assessed by the presence of independent income source and the amount of total income. The study, based on nation-wide survey of the elderly, examines the effects of individual level variables and household level ones. Also, it compares such effects between male and female elderly. The analysis shows that several variables have gender specific effects. Among them, particularly interesting and important are marital status and coresidence with children. The positive effect of having spouse is greater among female elderly than among male elderly. Also, while coresidence with children among male elderly has insignificant or slightly positive relation to their own economic resources, it has a negative relation among female elderly. These results indicate that female elderly are dependent on their husbands and children. The study suggests that future research on the elderly incorporate gender differentials into models attempting to capture diversity within the elderly population.

• Resources Recycling
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• v.27 no.3
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• pp.66-77
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• 2018

The import amount of rare metal in Korea is about 6,034 million USD, but the self-sufficiency of rare metals is about only 1%. In order to secure the stable supply of rare metals, it is necessary to operate an efficient stockpile system. In this study, we established a system to assess the adequacy of stockpiles by quantifying the risk factors of tangible and intangible risks in order to establish an efficient stockpile strategy. The model developed in this study aims to select the rare metals that need to be stockpiled first and to suggest the direction of the stockpiling policy in accordance with technological change and market change from the mid and long term viewpoint. The evaluation results derived from the model can quantitatively measure the security level of each rare metal and enable relative comparison between the rare metals using criticality matrix. Therefore, it is expected that more efficient stockpile policy will be possible if the proposed model is utilized in the future policy making.

• Proceedings of the Technology Innovation Conference
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• 2004.06a
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• pp.249-269
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• 2004

현재 국내 원자력 발전산업은 상당한 기술자립을 이루었고, 외국으로의 기술 수출을 시도하고 있을 정도로 상당한 경쟁력을 갖고 있다는 의견이 지배적이다. 실제 한국전력, 원자력 연구소 등에서는 원자력 기술을 해외에 수출하고자 노력하고 있다. 원자력 발전기술의 해외 수출이나 연구개발 사업에서 가장 중요한 지표 중의 하나가 원자력 발전산업의 기술수준 또는 기술경쟁력이다. 또한 국외 뿐 아니라 국내에서도 발전원별 경쟁체재 도입으로 인해 원자력 발전의 경쟁력 평가는 원자력의 타 발전원 대비 경쟁력 확보 측면에서 중요한 사항이 되었다. 본 연구에서는 원자력 발전산업의 효율적인 기술개발 전략 수립을 지원하기 위한 모델을 System Dynamics 방법론을 사용하여 개발하였다. 이를 위하여 우선 원자력 발전산업의 기술경쟁력 평가를 위한 변수 및 평가범위를 선정하고, 선정된 변수들의 인과관계를 정성적으로 평가할수 있도록 인과지도(Casual Loop Diagram)를 개발하였으며, 이를 정량화하여 평가할 수 있도록 흐름도(Stock Flow Diagram)를 개발하였다. 개발된 모델을 사용하여 총 연구비 등의 정책관련 변수들을 변화시키면서 시뮬레이션을 수행해보았다. 본 연구의 한 결과로서 기준 시나리오에 대한 분석 결과 2004년 이후의 원자력발전산업 순편익 누적 결과는 다음과 같다. 순편익 누적(억원) : 2015(년도) 19,169, 2025(년도) 61,396, 2035(년도) 106,598, 2045(년도) 143,813, 발전 비용 감소분 누적(억원) : 2015(년도) 9,370, 2025(년도) 39,182, 2035(년도) 73,409, 2045(년도) 103,212, 국산화율 증가로 인한 수입액 감소분 누적(억원) : 2015(년도) 6,388, 2025(년도) 13,367, 2035(년도) 18,756, 2045(년도) 22,595, 시장점유율 증가로 인한 수출액 증가분 누적(억원) : 2015(년도) 3,411, 2025(년도) 8,847, 2035(년도) 14,433, 2045(년도) 18,005 또한 시나리오 비교평가를 실시하여 본 결과, 본 연구에서 정의한 순편익 누적(Cumulative Net Profit) 변수를 적용하면 현재 연구비 추세 대비 $30\%$ 까지 연구비를 증가 시키는 것이 효율적임을 알 수 있었다.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2017.11a
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• pp.229-248
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• 2017

지속적으로 산업시장이 고도화되면서 산업시장분석 역시 빅데이터 수준의 데이터 증가에 따라 분석 업무의 효율성 재고가 더욱 요구되고 있으며, 분석 관점역시 차원이 증가하며 분석 방법론의 새로운 적용 필요성이 대두되고 있다. 본 연구에서는 활용 가능한 공개데이터베이스의 탐색, 공개데이터 베이스 기반의 산업분석 사례 연구의 분석, 이슈의 선정 및 이슈 관련 산업의 선정, 선정된 이슈와 선정된 산업의 시장분석 주요 주제 파악, 해당 산업의 선정된 분석주제 분석을 위한 영향요인 탐색을 수행하였다. 또한 비공개 데이터를 활용하여 실제 이슈와 관련된 산업의 영향요인을 심층적으로 분석하여 관련 결과를 비교하였다. 이러한 목적에 따라 최근 정치사회적으로 이슈가 되었던 국내 사드(THHAD, 종말고고도지역방어) 배치로 인한 중국의 정치경제적 보복조치로 국내 화장품 산업의 대(對) 중국 수출에 대한 영향을 파악하기 위해 공개 데이터베이스에 기반한 주요 요인을 탐색하고 관련 요인을 파악하였다. 분석 결과 중국의 GDP 대비 재화 및 서비스 수입 비중, 상품 수입액, 인구 15-64세 여성 비중, 도시인구 비중이 지표로써 유의한 것으로 확인되었으며, 이외에 상업서비스 수입 대비 여행서비스비율도 유의미한 지표로 추정되었다. 그러나 사드 보복에 따른 화장품 산업의 중국 수출 규모 심층 연구 결과 중국의 사드 보복에 따른 제도적 조치는 없었으며, 수출 실적 상에서 한국 화장품에 대한 일시적 기간에(2017년 4월, 5월) 수출이 급감하였으며, 이는 한국 화장품에 대한 중국 소비자의 구매의향 및 구매율이 실직적으로 낮아진 것으로 추정되나 6월 이후 중국 화장품 수출 실적은 전년대비 다시 10%이상 성장하면서 지속적인 성장을 이루고 있는 것으로 확인된다.

• Journal of Convergence for Information Technology
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• v.9 no.12
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• pp.133-140
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• 2019

This study examines the reason of a staggering trade deficit on the Korean agro-food industry. To achieve the goal of the study, this study suggests the policy implication for enlargement a trade deficit with foreign exchange rate. Despite the majority of grain importer does realize that there is a huge affection for price volatility on the business result, they are more likely to take flat pricing through the physical market to avoid risk of price volatility with exchange rate. Also the analysis of external and internal environments around the Korean agro-food export & import are conducted, particularly with the analysis of trade volume and food price affecting the export & import. Results from a survey show that the common factor to the effective use of overseas agricultural and foreign currency futures trading for grain traders in Korea.

• Journal of Korean Society of Forest Science
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• v.100 no.4
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• pp.585-590
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• 2011

The purpose of this research is to suggest economic feasibility of cultivating Acer Mono by using profitability analysis to forest owners. To achieve this research objective, forest owner household survey with intensive cultivating has been conducted about a sap production on its age of tree. And input costs and sap production costs are calculated with silvicultural system from plant to regeneration cutting. Total income is the sum of its sap sales and thinning and regeneration cutting. The method of profitability analysis was used on the NPV(Net Present Value) and IRR(internal rate of return). Finally, when 3% discount rate is applied, NPV is about 59,436 thousand won and IRR value is 9.22% at this point. This result, therefore, proves that cultivating Acer Mono is economical feasibility to forest owners.

• Korea Trade Review
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• v.48 no.1
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• pp.307-329
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• 2023

This paper studies how the free trade agreements (FTAs) have changed the dynamics of Korea's imports since 1996. Specifically, the dynamic regression analysis on the transition of trade liberalization discovers three main findings: (1) import values of Korea increase gradually as FTAs enter into force; (2) the extensive margins of import work as a major source of the trade effect in the transition episode of FTAs; (3) the extensive margins of import tend to increase even before FTAs enter into force. This noble forward-looking effect suggests some potential foreign exporters or exporting goods enter the Korean market, especially when FTAs negotiation starts. It supports the early entry behavior of potential exporters found in recent international trade literature.

• The Korean Journal of Air & Space Law and Policy
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• v.25 no.2
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• pp.3-42
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• 2010

This study shows that the Warsaw Convention in Article 1 is not an international transport, origin, destination and all the Contracting Parties is not a purely domestic shipping does not apply to this Treaty. Therefore, in this case, liability and damages for the governing law is selected according to international law should be. In addition, in the case of international shipping and passenger air carrier of this treaty to govern the relationship, not all of which aim is the unification of certain rules. Product liability is the most important thing of all. As for the aircraft manufacturer's responsibility according to international law also does not select the applicable law is not. The Warsaw Convention Article 17 apply for the passenger's personal damages Article 2 Section 2 leads to the most prestigious type of damages, and subjective and objective with regard to the scope of international law are being committed. In this regard, Governing Law-related aircraft accidents leading to serious accidents in China of an aircraft crash in Nagoya, Japan, the airport can be. China Airlines accident of the aircraft are operated for the unification of the rules for international air transport on the Warsaw Convention as amended by Article 17, Article 18 of damages by the tort claims and claims based on damages caused by, or this cause of aircraft accidents air bus maker by the Corporation for damages in tort claims for damages claimed on the basis of solidarity is the case. In the case of these grand scale claim responsibility for the airline, air transport agreements to determine the applicable law of the contract is very complex. There for the contracts based on individual circumstances or origin, and by considering because each must be determined.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.9
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• pp.377-385
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• 2017

This study analyzed the impact of the implementation of 14 FTAs on the domestic agricultural sector through aneconomic post-impact assessment using the dynamic analysis method. As a result of the implementation of the FTAs, agricultural production decreased significantly, mainly in the livestock and fruit sectors. Most of the previous studieswere limited to the post-impact assessment of individual FTAs, which does not reflect the fact that the implementation of a number of FTAs results ina combinationof trade creation, trade transitions, and FTA accumulation effects. Therefore, this study provides amore objective and comprehensive evaluation of the effects of FTAs in the agricultural sector, and contributes to some extent to the evaluation of the policy directions necessary for revising and supplementing the domestic measures needed to supplement the FTAs. Of course, a more sophisticated analysis is needed to separate the impact of these complementary domestic measures and the performance of the general agricultural project.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.18 no.10
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• pp.48-53
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• 2017

One of the policies of the Ministry of Agriculture, Forestry and Livestock Food and Livestock aims to export $10 billion worth of products. Although it was not easy to achieve the export goal of $ 6.5 billion in 2016, the policy should be pursued continuously. Accordingly, a facility modernization project and high-tech greenhouse project are being implemented to facilitate exports. Moreover, it is possible to consider substitution of imports in the policy shift. Imports of temperate and tropical fresh fruits totaled 1.2 trillion won in 2016. Accordingly, identification of alternatives to tropical and temperate fresh fruit imports will enable farm income to increase and the fresh fruit industry to grow. The major obstacle to tropical fruit production in Korea is high heating costs. However, Jeju Island apple mango farmers found that using non-taxable kerosene and hot water from power plants could reduce heating costs by 42.5%. Indeed, using hot wastewater can reduce heating costs by more than 40%. To improve competition with imported fruits, farmers can change their heating systems using financial support plans (e.g., 20% government subsidies, 20% loans, 30% subsidies from local governments). The income effect and import substitution effect of fruit tree farmers should be carefully analyzed in the future and the study will be closed to discuss the policy direction.