• 무역학회지
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• 제46권3호
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• pp.45-63
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• 2021

This paper investigates the effects of China's participation in global value chains (GVC) on the productivities focusing on the manufacturing industries. In this study, several indicators of participation in global value chains were used. These include GVC participation, forward GVC participation, backward GVC participation and GVC position index. In particular, we used the data obtained from 18 manufacturing industries in China during 15 years from 2000 to 2014. The main results of the analysis are as follows. First, the higher the degree of total participation in GVC, the higher the productivity. This means that with the increase in exports and imports of intermediate goods, productivity has increased through technology spillover effects or competition effects, and so on. Second, the backward participation does not increase the productivities significantly while forward participation leads higher productivity. Third, the productivity improvement effects of GVC participation was larger in the high-tech industries than in the low-tech industries. These results show that GVC participation was helpful for the economic growth of China and the efforts for moving toward upstream production stage in GVC is necessary for the improvement of international competitiveness in Chinese manufacturing industry.

• 무역학회지
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• 제46권3호
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• pp.25-44
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• 2021

This paper analyzes the impact of the recent change in global value chain on the productivity of manufacturing sectors and firms in Chungnam area using ADB MRIO. Forward participation significantly increases sector productivity in Chungnam area and backward participation affects the sector productivity after 2015. In the analysis for firm productivity in Chungnam area, GVC participation does not enhance the productivity of firms in Chungnam area. However, firms in the top 25% of productivity in 2007 improved their productivity with higher GVC participation and the productivity of firms in the top 25% of asset in 2007 was positively affected by forward pariticipation and negatively affected by backward participation. The productivity of firms that were in international market in 2007 was significantly worsened by GVC participation.

• 무역학회지
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• 제48권4호
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• pp.93-119
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• 2023

본 연구는 한국과 중국의 인플레이션에 대한 글로벌 가치사슬 참여도의 영향을 OLS 회귀분석으로 분석하고, 글로벌 금융위기 이후 한국과 중국을 비교하여 결과를 확인하였다. 연구 결과, 한국과 중국의 GVC 참여도는 인플레이션에 음(-)의 영향을 미치는 것으로 나타났다. 또한 전방참여도와 후방참여도로 나누어 분석한 결과, 한국과 중국의 전방참여도는 인플레이션에 음(-)의 영향을 미치며, 후방참여도는 인플레이션에 양(+)의 영향을 미치는 것으로 나타났다. 다음으로 글로벌 금융위기 이후에는 한국과 중국의 결과가 다소 차이를 보였다. GVC 참여도가 인플레이션에 미치는 영향은 한국과 중국에서 모두 유의하지 않은 것으로 나타났다. 그러나 전방 및 후방참여도로 나누어 분석한 결과, 중국은 대부분의 물가지표에서 유의한 효과가 나타나지 않는 반면, 한국은 전방 및 후방참여도의 영향이 오히려 확대되는 것으로 나타났다. 이는 중국의 경우 글로벌 금융위기 이후 대외 수요를 국내 수요로 전환하고자 하였으나, 수입 중간재를 국내 제품으로 대체하면서 GVC 참여도의 영향이 축소된 것으로 보인다. 반면 한국은 글로벌 금융위기 이후에도 크게 낮아지지 않은 GVC 참여도를 보이고 있기 때문에, 인플레이션에 대한 영향이 여전히 유의한 것으로 보인다.

• 무역학회지
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• 제45권4호
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• pp.153-169
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• 2020

This study compares and analyzes the effects of GVC participation on export competitiveness in manufacturing and service industry in 36 OECD countries and 28 non-OECD countries. According to the statistical analysis result, the GVC participation had a negative impact on export competitiveness in manufacturing industry, while it had a positive impact in the service industry. In the case of the manufacturing industry, participation toward the backward GVC had a positive impact on export competitiveness before the financial crisis, besides, participation toward the forward GVC had a positive impact on export competitiveness. In the case of the service industry, export competitiveness through forward GVC participation has increased since the financial crisis has occurred, and backward GVC participation was estimated to have a negative impact on export competitiveness. The results of this study implies that, to secure export competitiveness, a converged approach of the manufacturing and service industries to upgrade the global value chain is needed.

• 무역학회지
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• 제44권2호
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• pp.269-282
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• 2019

This study analyzes the effects of participation in the global production network on the income inequality using panel data from 2005 to 2016 for 63 countries. In this study were used fixed effects model with autocorrelation, random effect model with autocorrelation and the GLS method. Results are as follows: First, the economic development level supports the Kuznets hypothesis. And then, the forward participation in global value chains increased income inequality, and the backward participation decreased income inequality. In order to derive more detailed estimation results, we analyzed OECD countries and non-OECD countries. First, OECD countries featured decreased, but increased beyond a certain level as a U-shaped curve, that did not support the Kuznets hypothesis. In contrast, non-OECD countries followed the Kuznets U-curve. Second, participation in the global production network showed that both OECD and non-OECD countries featured increased income inequality. In contrast, backward participation appears to mitigate income inequality both in OECD and non-OECD countries. Finally, the ratio of labor and capital is significant in mitigating income inequality in non-OECD countries in which they feature backward participation in production networks. This can be interpreted as developing economies participate in the global production network due to increased capital accumulation and increased the labor productivity.

• Journal of Korea Trade
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• 제27권2호
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• pp.22-46
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• 2023

Purpose - study aims to investigate the relationships between global value chain (GVC)- and transportation-related determinants and economic performance. Also, moderating effects of COVID-19 on the relationships are theoretically and empirically discussed. A limitation of previous studies includes their over-reliance on the opportunities of GVC participation and larger transportation. This study represents the challenges associated with them. Also, it shows how GVC and logistics can be difficult in case of a market fluctuation such as COVID-19. Design/methodology - The sample for this study includes 828 observations from 138 countries. A semi-panel data set has been used. Six observations for each country are used to empirically test the hypotheses and a Two-way cluster model is conducted. Findings - It is confirmed that GVC forward participation contributes more than the backward participation to enhance performance. Transportation infrastructure is critical, but large scales of marine and air transportations are not positive in terms of economic performance. Stricter government response to COVID-19 negatively moderates economic performance by GVC backward participation and transportation infrastructure. Originality/value - The spread of COVID-19 is causing a severe collapse of GVC and transportation. This study empirically verifies the moderating effects of the government stringency on GVC and transportation. Previous studies usually discuss a positive impact of GVC and transportation size on economic performance. However, this study aims to show various challenges behind GVC participation and large scale transportation.

• 한국항만경제학회지
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• 제22권2호
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• pp.109-133
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• 2006

The Study investigated economic effects and the conditions in the public Shipping e-marketplace. For efficient operation of the public Shipping e-marketplace, this study analyzed how do the participation and community actualize in the public Shipping e-marketplace actualize. According to the research results of the Shipping Cooperations, For Promoting participation in the public Shipping e-marketplace, the Cyber-intermediary operating public Shipping e-marketplace provides timely shipping information, needs publicity strategy generating more benefits than offline transaction, and gives a conviction of the searching costs and transaction costs decrease. Second For promoting community, the Cyber-intermediary must playa major role in electronic community and drive forward continuous publicity strategy in the public Shipping e-marketplace.

• 대한물리의학회지
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• 제15권2호
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• pp.11-21
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• 2020

PURPOSE: This study examined the effects of posture improvement exercise using virtual reality programs on the posture and balance of patients with forward head postures. METHODS: Thirty men and women in their 20 s, who had a forward head posture, were divided randomly into a group with posture correction exercise and a group with posture correction exercise combined with virtual reality programs. The posture correction exercise was composed of squats, XCO training, and chin-tuck exercise. In contrast, exercise with virtual reality games involved the Hot Squat, Climbey, and Baskhead programs while wearing a headset. Both groups performed the exercises 15 min a day, three times per week, for four weeks. The balance ability, distance between the acromion and earlobe, and neck joint range of motion were assessed before and after the exercises. RESULTS: Both groups showed significant reductions in the distance between the acromion and the earlobe, along with significant improvements in the range of joint motion. The group that performed the virtual reality exercises showed a significant increase in the limit of stability. Both groups showed a significant decrease in the sway length. In contrast, the group given the virtual reality exercises showed a significant reduction in the sway speed while standing with their eyes closed. CONCLUSION: Exercise applying virtual reality programs can be used in clinical and home programs to correct the postures of individuals with a forward head posture because they can trigger interest in inducing active participation.

• 대한통합의학회지
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• 제9권3호
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• pp.135-144
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• 2021

Purpose : The purpose of this study was to investigate the effect of 2 weeks of backward walking exercise (BWE) on cervical angle and gait parameters in college students with forward head posture. Methods : Fifteen subjects participated in the experiment. All the participants had a craniovertebral angle (CVA) of 55 degrees or less. The purpose of the study was explained to all the subjects prior to participation, and volunteered to take part in the study. A camera capable of taking pictures of the lateral plane was installed at a distance of 1.5 meters from each subject. Images of forward head posture were obtained before and after performing the BWE, and the CVA and craniorotational angle (CRA) were compared pre- versus post exercise. Foot pressure and gait parameters (step length of left and right, stride length, stance of left and right, swing of left and right, step time of left and right, and stride time) were measured using a rehabilitation treadmill. The subjects performed the BWE for 2 weeks. The exercise program consisted of a 5-minute warm-up exercise, 20-minute main exercise, and 5-minute cool-down exercise. In the main exercise, the treadmill speed was set to 2.4 km/h in the first week and 3.4 km/h in the second week. A paired t test was used to compare the CVA and CRA and gait parameters before and after the exercise. Results : Comparison of the CVA and CRA before and after the BWE revealed a significant difference post exercise, with a marked improvement in forward head posture after the exercise (p<.05). Conclusion : Based on the results of this study, the BWE is considered to be an effective exercise for the forward head posture. Also, additional research is needed to shed light on the impact of the BWE on gait parameters.

• 한국컴퓨터정보학회논문지
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• 제29권7호
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• pp.181-190
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• 2024

본 연구는 조리 전공 관련 실습수업 만족도가 전공 학업 스트레스와 수업 참여도에 미치는 영향 정도를 조사하였다. 2023년 2학기에 광주·전남·전북 소재 6개 전문대학의 조리 전공 1학년 228명 학생을 대상으로 조사하였다. 자료처리는 SPSS Ver. 25.0을 이용하였다. 조사 자료의 일반적 특성, 신뢰도 분석, 탐색적 요인 분석, 상관관계 분석, 다중 회귀 분석을 진행하였다. 본 연구 결과는 첫째, 조리 관련 실습수업 만족도 하위 구성 요인과 학업 스트레스 및 수업 참여도 간 상관관계가 있는 것으로 나타났다. 둘째, 조리 실습수업 만족도와 전공 학업 스트레스에 미치는 영향이 유의미하게 나타났다. 셋째, 조리 실습수업 만족도가 전공 수업 참여에 미치는 영향이 유의미하게 나타났다. 결론적으로 지방 전문대 조리 관련 전공 실습수업 만족도가 학업 스트레스와 수업 참여에 영향을 미치는 것으로 나타났다. 향후, 대학 입학 전 조리 실습 경험이 실습수업 만족도와 학업 스트레스, 진로 및 취업 준비에 어떤 영향을 미치는지에 관한 후속 연구를 기대한다.