• Proceedings of the National Institute of Ecology of the Republic of Korea
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• 제3권2호
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• pp.115-121
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• 2022

The Yezo sika deer (Cervus nippon yesoensis) is a subspecies of sika deer originated from Hokkaido, Japan. This paper is a study on the ecological impact caused by large mammals invading the ecosystem. Two pairs of deer were donated to the Agency for Defense Development in Taean in the late 1980s, and the population expanded to over 280 in 2018. The thermal imaging camera showed that the population ranged from 8 to 53 herds, divided into approximately 10 groups. It was confirmed that some of the herds had escaped the management area and invaded the nearby natural ecosystem, causing damage to cultivated land and natural vegetation. Herds of over 50 individuals have been studied in large grassland areas near drinking water sources such as streams and ponds. In places with excessive deer concentration, 1) feeding damage to herbs, shrubs and sub-trees, 2) tree withering due to antler-rubbing, and their habit of migrating along forest edges 3) excessive soil loss on slopes, 4) destruction of herbaceous layers due to compaction, and finally 5) damage to infrastructure were also investigated. As such, it is expected that the results of this study on the ecological and economic damage of Yezo sika deer can be used to predict the impact of other exotic sika deer in South Korea with similar behavioral characteristics and to establish a management plan.

• 정보화정책
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• 제17권2호
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• pp.86-103
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• 2010

이 연구에서는 이동통신사가 지급하는 이동통신 단말기보조금의 경제적 파급효과를 산업연관분석을 통해 파악하고 이동통신사가 취할 수 있는 다른 두 가지 대안과 비교하였다. 첫째 시나리오는 이동통신사가 단말기보조금을 지급하는 경우이다. 둘째는 이동통신사가 단말기보조금을 소비자에게 지급하지 않고 그 금액만큼을 이동통신 설비투자에 사용하는 경우이다. 셋째는 이동통신사가 단말기보조금만큼 이동통신서비스 요금을 인하하고 소비자가 이 요금인하분을 일반 재화 및 서비스 소비에 활용하는 경우이다. 이러한 세가지 시나리오를 분석한 결과 단말기보조금을 지급할 경우의 생산 부가가치 수입 취업 고용유발효과가 둘째와 셋째 시나리오에 비해 비교적 더 큰 것으로 나타났다. 그 이유는 단말기보조금 지급은 단말기 수요 증가를 가져오는데 이는 다른 시나리오에 비하여 생산 및 수입유발효과가 크기 때문이다. 또한 단말기보조금은 이동통신 서비스 대리점 등 유통업체의 인센티브로 귀착되는데 유통업의 부가가치, 취업 및 고용유발효과 또한 타 시나리오의 그것보다 더 크기 때문에 이러한 결과가 나타난 것으로 보인다.

• Asian Journal of Innovation and Policy
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• 제9권2호
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• pp.187-206
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• 2020

Under the on-going evolution of the COVID-19 pandemic, estimating the economic impact of the pandemic is highly uncertain and challenging. This situation makes it difficult for policymakers, governors, and economic entities to formulate appropriate responses and decision makings. To provide useful information about the effect of the COVID-19 pandemic on the Korean economy, this study examined macroeconomic impact analysis stemming from the pandemic shocks with different scenarios for the Korean economy. Based on three scenarios using the growth rate of 2020 GDP and consumer expenditure patterns, the 2021 GDP by industry sector was forecast with two new approaches. First, the recovering process of the Korean economy from the shock was analyzed by applying a Flex-IO method. Second, a new forecasting approach combined with an IO coefficient matrix was applied to forecast the future GDP changes. The findings of this study are summarized as follows: First, the total GDP growth rate under the Pessimistic Scenario demonstrates less rebound from the shock than that of the Base Scenario. Second, agriculture, culture, and tourism-related sectors that are suffering from the severe losses of COVID-19 showed lower resilience than other different industries. Third, information and communications technology (ICT) industry maintains a stable growth trend and is expected to take the leading role for the Korean economy in the post-COVID-19 and the Industry 4.0 eras. The findings deliver that it needs to analyze how government expenditure responding the shock into the forecasting model, which can be more useful and reliable to simulate the resilience from the pandemic.

• 한국병원경영학회지
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• 제22권4호
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• pp.16-23
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• 2017

Purposes: Despite the positive health effects of both smokers and non-smokers, the non-smoking area policy is being negatively evaluated because of the vague fears of declining restaurant sales. The purpose of this study is to analyze the changes in sales of general restaurants(including liquor stores) and other restaurants that are considered to have the most applications of smoking cessation policy among the smoking facilities, and to examine the economic impact of the designation and expansion policies of non-smoking areas. Methodology: This study used the wholesale and retail trade survey data of the Korea National Statistical Office from 2011 to 2014 and analyzed 31,577 restaurants excluding missing values. For statistical analysis, t-test, ANOVA and Difference-in-differences(DID) models were used and the interaction term of area and year was entered. Findings: As the non-smoking area policy had been designated and expanded from December 2012 to December 31 2013, high restaurant sales in 2012 declined sharply in 2013. However, despite the expanding of the no-smoking area from January 1 2014 through December 31 2014, restaurant sales slightly recovered in 2014. In the case of other restaurants, there is no significant change in sales since the start of the policy in 2013. Practical Implications: The decline in restaurant sales due to the designation and expansion of non-smoking areas is temporary and can not be sustained over the long term. This result can be used to positively suggest negative perceptions of the designation and expansion policy of non-smoking areas. Also, this result can contribute to health promotion and smoking cessation policies by protecting non-smokers from the risk of secondhand smoking exposure and inducing smokers to decrease smoking rate and smoking amount.

• 한국건축시공학회지
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• 제21권5호
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• pp.495-506
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• 2021

본 연구는 기획단계에서 이루어지는 개산견적 예측 모델의 정확도를 향상시키기 위하여 최적의 영향요인 조합을 제시하였다. 이에 기획단계에서 활용이 가능한 정량적인 영향요인을 선정하여 상관분석 통해 공사비에 가장 많은 영향을 주는 연면적을 중심으로 8가지의 영향요인 조합을 설정하였다. 8가지 영향요인 조합을 다중회귀분석을 통하여 VIF계수 및 회귀식을 도출하였다. VIF계수를 통해 연면적, 건축면적과 층 영향요인을 함께 사용할 경우 연면적과 건축면적 두 영향요인 간의 종속적인 관계를 확인하였다. 이에 독립성이 예측 모델 정확도의 관계를 분석하기 위하여 실 사례 프로젝트 10건을 회귀식에 대입하여 정확도를 분석하였다. 분석결과, 독립성이 확보가 안 된 영향요인 조합은 다른 영향요인에 비해 정확도 떨어지는 것을 확인할 수 있다. 따라서 최대한 많은 영향요인을 활용하는 것보다 최적의 영향요인 조합을 선정하는 것이 예측 모델의 정확도를 향상시킬 수 있다고 판단되며, 본 연구에서는 연면적과 건축면적을 활용하였을 경우 정확도가 가장 높은 것을 확인하였다.

• 한국지역사회생활과학회지
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• 제28권4호
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• pp.599-611
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• 2017

The purpose of this study is to investigate the effect of increased debt on the incidence of domestic violence over the two-year interval 2014-2016. To investigate Korean low-income households with economic hardships, we analyzed the 9th and the 11th waves of the Korea Welfare Panel Study, which is jointly sponsored by the Korea Institute for Health and Social Affairs and the Institute of Social welfare, Seoul National University. The study analysis was based on data from 2,786 households with less than 60% of median income. The main study findings are as follows. First, increases in economic hardships incur domestic violence for low-income households, while increases in low-interest debt decrease the incidence of the domestic violence when controlling for economic hardships. All other things being equal, economic hardship works as a stressor and low-interest debt works as an alleviator influencing domestic violence. Second, when low-income households are experiencing economic hardships, low-interest debt fails to work as an alleviator. Under this circumstance, high-interest debt actually acts as a stressor influencing domestic violence. Thus, we can speculate that use of debt under economic hardships will occur domestic violence for low-income households. This study differs from previous studies in that it examines the effect of increase in debt on the incidence of the domestic violence across different types of debt: low interest, high interest, and credit card. We can conclude that debt can function as a stressor or an alleviator for low-income households, depending on the interest rate and the households' financial situation.

• The Journal of Asian Finance, Economics and Business
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• 제8권12호
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• pp.283-293
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• 2021

To verify the employment impact of two-directional FDI, the study analyzes panel data composed of 26 OECD countries from 2006 to 2018 by using the system GMM. Furthermore, we decompose domestic employment into types of industries and skill compositions to identify the heterogeneous employment impact. The results show that inward and outward FDI at lag one period promote domestic employment at the overall level. In terms of workers' skill levels, lagged inward FDI significantly persistently promotes high-skilled workers' employment, likewise, the positive employment impact also appears with a time lag in low-skilled labor subgroups. Outward FDI, on the other hand, initially inhibits both high- and low-skilled labor demand, but then changes to a positive effect in the highskilled labor subgroups. Although there is a time difference between inward and outward FDI, it has a significant and positive impact on employment in the manufacturing and service industries. The results indicate that the relationship between manufacturing and service employment is a mutual substitute. To attract international investors, governments should promote a favorable investment climate and maintain stable economic growth. Because low-skilled labor is more susceptible to changes in FDI, policy measures are required to ensure employment stability.

• 정보화정책
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• 제26권2호
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• pp.24-45
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• 2019

본고는 정보통신기술(ICT) 산업을 ICT 생산 산업과 ICT 이용 산업으로 구분하고 각 산업의 경제성장 기여도를 추정하였다. 이를 통해 ICT 생산 산업이 전체 경제성장에 미치는 직 간접적인 영향의 크기를 분석하였다. 한편, 이러한 산업별 성장기여도 분석은 각 산업이 전체 경제성장에서 차지하는 비중의 크기를 사후적으로 보여줄 수는 있어도, 특정 산업이 전체 경제에 영향을 미치는 파급 원인 및 그 과정에 대하여는 파악할 수 없다는 단점이 있다. 이러한 단점을 극복하고자 본고는 ICT 생산 산업 재화의 가격변화에 초점을 두고 ICT 생산 산업 재화의 상대가격, ICT 이용 산업에 투입되는 ICT 생산 재화의 비중, 경제 전체의 생산 간에 장기적으로 안정적인 관계가 존재하는지 여부를 실증분석 하였다. 분석 결과 경제 전체의 성장은 지속적으로 둔화되고 있으나 ICT 관련한 산업의 전체 경제 성장에 기여하는 정도가 꾸준히 증가한 것으로 나타났다. 특히, ICT 생산 산업이 전체 경제성장에 직접 기여한 것 보다는 ICT 이용 산업을 통해 간접적으로 기여한 효과가 더 큰 것으로 나타났다. 한편, ICT 생산 산업 재화의 상대가격과 ICT 이용 산업에 투입되는 ICT 생산 재화의 비중 간에 장기적으로 안정적인 부(-)의 관계가 있는 것으로 나타났다. 또한 ICT 생산 산업 재화의 상대가격 하락이 ICT 이용 산업에 투입되는 ICT 생산 재화의 비중을 증가시키고 이를 통해 경제 전체의 생산도 증대시키는 것으로 나타났다. 이는 ICT 생산 산업의 가격하락이 여타 산업의 생산효율을 증가시켜 경제전체의 성장에 직 간접적으로 영향을 주는 것으로 해석될 수 있다.

• 한국지역사회생활과학회지
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• 제18권4호
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• pp.523-537
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• 2007

This study aimed to explore residents' perceptions towards Kangwon Land Casino. An on-site survey was conducted for residents in the casino communities using self-administered questionnaires. Completed questionnaires were obtained from 191 residents in the study area. A factor-clustering method identified four distinct segments: positive perceived impact residents (52.8%), negative perceived impact residents (11.3%), unconcerned residents (28.9%), and selectively perceived impact residents (6.9%). Results showed that women and younger residents are more likely to perceive positive impact with casino development. Men, middle-aged residents and farmers are more likely to perceive negative impact with casino development. White-collar business-class residents are more likely to perceive the impact selectively with casino development. We suggest that the stakeholders including public bodies on casino industry development boards share with local residents information on the economic benefits and other topics related to the casino business.

• Journal of Korea Trade
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• 제26권7호
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• pp.77-92
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• 2022

Purpose - This paper is an empirical investigation of the mediation effect of innovation activity in industry transformation considering the relationship between the semiconductor industry and high-quality economic development. The research questions are whether the semiconductor industry drives high-quality economic development and if so, what is the semiconductor industry's role in high-quality development? We found that the semiconductor industry has clearly improved the quality of economic development, and its comparative advantage has significantly increased per capita national incomes. Furthermore, innovation activity proved to be an intermediary factor for the semiconductor industry to promote high-quality economic development. The world economy should aim to reasonably develop the international semiconductor industry and cultivate innovation markets. Design/methodology - Our empirical model considers the relationship between the semiconductor industry, innovation activity, and high-quality economic development. We constructed an analysis framework based on data from 199 World Bank economies between 1995 and 2019, and we used a mediation effect method to calculate the total effect of the semiconductor industry on promoting high-quality economic development, the indirect effect of the semiconductor industry on promoting innovation activity, and the mediation effect of these innovation activities on the promotion of high-quality economic development. Findings - The results show that the semiconductor industry has significantly promoted high-quality economic development. This is true even after the robustness test of grouping and alternative variables was applied. An analysis of the mechanism shows that promoting patents, scientific research, efficient government, and urban management innovation are important mechanisms for the semiconductor industry to release high-quality development dividends. Originality/value - Although it has been shown that specific industries like semiconductors can affect high-quality economic development through industrial upgrading, few researchers have attempted to empirically test the impact of the semiconductor industry on high-quality economic development. In this paper, we use a mediation effect model, alternative variables and a grouping test to find the internal mechanisms of the comparative advantage of the semiconductor industry in high-quality economic development from the perspective of innovation activity.