• 기술혁신학회지
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• 제21권2호
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• pp.860-874
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• 2018

본 연구는 신 국제무역이론(Melitz, 2012, 2014, 2015)에 대한 실증분석을 목적으로 한다. 신 국제무역이론은 기업기술역량에 대한 이질적 기업분포가 무역효과에 미치는 영향을 중심으로 전개되고 있으며, 기업기술역량분포형태가 무역효과를 결정한다는 중요한 가정에서 출발한다. 본 연구는 실증적으로 우리나라 제조업에 기업기술역량분포를 추정하였다. 이 연구목적을 위하여 우리나라 총 기업기술역량분포를 기술혁신과 기술모방분포로 분리하였으며, 분포형태의 적합성에 대하여 통계적으로 검증하고, 신 국제무역이론기반에 대한 적정성을 평가하였다. 연구시사점으로 본 분석결과를 바탕으로 기술정책 및 산업정책 방향을 간단하게 제언하였다.

• International Journal of Computer Science & Network Security
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• 제21권3호
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• pp.245-256
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• 2021

Poor logistical infrastructure and agri-food supply chain management leads to significant food waste in logistic system. The concept of the sustainable value added agri-food chains requires defined approach to the analysis of the existing situation, possible improving strategies and also assessment of these changes impact on further development. The purpose of research is to provide scientific substantiation of theoretical and methodological principles and develop practical recommendations for the improvement of the agri-food logistics distribution system. A case study methodology is used in this article. The research framework is based on 4 steps: Value Stream Mapping (VSM), Gap and Process Analysis, Validation and Improvement Areas Definition and Imitation Modelling. This paper presents the appropriateness of LEAN logistics tools using, in particular, Value Stream Mapping (VSM) for minimizing logistic losses and Simulation Modeling of possible logistics distribution system improvement results. The algorithm of VSM analysis of the agri-food supply chain, which involves its optimization by implementing the principles of sustainable development at each stage, is proposed. The methodical approach to the analysis of possible ways for optimizing the operation of the logistics system of the agri-food distribution is developed. It involves the application of Value Stream Mapping, i.e. designing of stream maps of the creation of the added value in the agri-food supply chain for the current and future state based on the minimization of logistic losses. Simulation modeling of the investment project on time optimization in the agri-food supply chain and economic effect of proposed improvements in logistics product distribution system functioning at the level of the investigated agricultural enterprise has been determined. Improvement of logistics planning and coordination of operations in the supply chain and the innovative pre-cooling system proposed to be introduced have a 3-year payback period and almost 75-80% probability. Based on the conducted VSM analysis of losses in the agri-food supply chain, there have been determined the main points, where it is advisable to conduct optimization changes for the achievement of positive results and the significant economic effect from the proposed measures has been confirmed. In further studies, it is recommended to focus on identifying the synergistic effect of the agri-food supply chain optimization on the basis of sustainable development.