• Title/Summary/Keyword: 데이터 검증

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A Study on the Relationship Between Institutional Distance and Outward Foreign Direct Investment: the Case of China (제도적 거리와 해외직접투자의 관계에 관한 연구: 중국을 중심으로)

  • Ya-Xin Lin;Cheon Yu;Yun-Seop Hwang
    • Korea Trade Review
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    • v.48 no.4
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    • pp.23-45
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    • 2023
  • This study aims to investigate the relationship between institutional distance and FDI and focuses on China's outward FDI. The institutional distance between China and the host country is measured using the institutional quality published by the World Bank. This study collects panel data from 50 countries in which China invested from 2008 to 2019 and use the panel GLS methodology to examine the factors affecting outward FDI through three models. First, this study examines the impact of the absolute value of institutional distance on China's OFDI across all countries in which China invests. Second, this study divides countries with positive and negative institutional distance to China into two groups and examine the relationship between institutional distance and OFDI in each group. Finally, this study examines the non-linear relationship between institutional distance and OFDI from China. To test this, this study adds the squared term of institutional distance to the model. The results of the analysis are as follows Institutional distance is positively related to China's OFDI. The relationship between institutional distance and OFDI is inverted U-shaped in the group of host countries with relatively higher institutional quality than China, but positive in the group of low-quality host countries. In addition, China's OFDI is affected by a combination of institutional and economic factors. The results of this study have implications not only for FDI host countries but also for MNCs' choice of FDI destinations.

A Study on the Effect of Awareness of Organic Farming on Environment-Friendly Agriculture Product Consumption and Revitalization (유기농업에 대한 환경성·공익성 인식과 친환경 농산물 소비 및 활성화에 관한 연구)

  • Shin, Ye-Eun;Kim, Sang-Bum;Choi, Jin-Ah;Han, Seokjun;An, Kyungjin
    • Journal of the Korean Institute of Landscape Architecture
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    • v.51 no.4
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    • pp.46-55
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    • 2023
  • This study investigated the public's awareness and purchase behavior of organic farming and environment-friendly agriculture products. This study also analyzed whether awareness affects environment-friendly agriculture products' consumption and price resistance and support for the revitalizing organic farming. This study derived environmental and public interst in organic farming, and a web survey was conducted for statistical analysis. As a result, it was found that the awareness of organic farming did not affect the consumption of environment-friendly agriculture products, but in case of high awareness is high, the resistance to prices is low. In addition, it was found that the stronger the public's awareness, the more positive the support for the expansion of organic agriculture and the willingness to purchase environment-friendly agriculture products. The results of this study are expected to be used as basic data for preparing measures to revitalize organic agriculture in the future.

Application of Multiple Linear Regression Analysis and Tree-Based Machine Learning Techniques for Cutter Life Index(CLI) Prediction (커터수명지수 예측을 위한 다중선형회귀분석과 트리 기반 머신러닝 기법 적용)

  • Ju-Pyo Hong;Tae Young Ko
    • Tunnel and Underground Space
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    • v.33 no.6
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    • pp.594-609
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    • 2023
  • TBM (Tunnel Boring Machine) method is gaining popularity in urban and underwater tunneling projects due to its ability to ensure excavation face stability and minimize environmental impact. Among the prominent models for predicting disc cutter life, the NTNU model uses the Cutter Life Index(CLI) as a key parameter, but the complexity of testing procedures and rarity of equipment make measurement challenging. In this study, CLI was predicted using multiple linear regression analysis and tree-based machine learning techniques, utilizing rock properties. Through literature review, a database including rock uniaxial compressive strength, Brazilian tensile strength, equivalent quartz content, and Cerchar abrasivity index was built, and derived variables were added. The multiple linear regression analysis selected input variables based on statistical significance and multicollinearity, while the machine learning prediction model chose variables based on their importance. Dividing the data into 80% for training and 20% for testing, a comparative analysis of the predictive performance was conducted, and XGBoost was identified as the optimal model. The validity of the multiple linear regression and XGBoost models derived in this study was confirmed by comparing their predictive performance with prior research.

Factors Affecting Individual Effectiveness in Metaverse Workplaces and Moderating Effect of Metaverse Platforms: A Modified ESP Theory Perspective (메타버스 작업공간의 개인적 효과에 영향 및 메타버스 플랫폼의 조절효과에 대한 연구: 수정된 ESP 이론 관점으로)

  • Jooyeon Jeong;Ohbyung Kwon
    • Journal of Intelligence and Information Systems
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    • v.29 no.4
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    • pp.207-228
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    • 2023
  • After COVID-19, organizations have widely adopted platforms such as zoom or developed their proprietary online real-time systems for remote work, with recent forays into incorporating the metaverse for meetings and publicity. While ongoing studies investigate the impact of avatar customization, expansive virtual environments, and past virtual experiences on participant satisfaction within virtual reality or metaverse settings, the utilization of the metaverse as a dedicated workspace is still an evolving area. There exists a notable gap in research concerning the factors influencing the performance of the metaverse as a workspace, particularly in non-immersive work-type metaverses. Unlike studies focusing on immersive virtual reality or metaverses emphasizing immersion and presence, the majority of contemporary work-oriented metaverses tend to be non-immersive. As such, understanding the factors that contribute to the success of these existing non-immersive metaverses becomes crucial. Hence, this paper aims to empirically analyze the factors impacting personal outcomes in the non-immersive metaverse workspace and derive implications from the results. To achieve this, the study adopts the Embodied Social Presence (ESP) model as a theoretical foundation, modifying and proposing a research model tailored to the non-immersive metaverse workspace. The findings validate that the impact of presence on task engagement and task involvement exhibits a moderating effect based on the metaverse platform used. Following interviews with participants engaged in non-immersive metaverse workplaces (specifically Gather Town and Ifland), a survey was conducted to gather comprehensive insights.

Development of a deep learning-based cabbage core region detection and depth classification model (딥러닝 기반 배추 심 중심 영역 및 깊이 분류 모델 개발)

  • Ki Hyun Kwon;Jong Hyeok Roh;Ah-Na Kim;Tae Hyong Kim
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.16 no.6
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    • pp.392-399
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    • 2023
  • This paper proposes a deep learning model to determine the region and depth of cabbage cores for robotic automation of the cabbage core removal process during the kimchi manufacturing process. In addition, rather than predicting the depth of the measured cabbage, a model was presented that simultaneously detects and classifies the area by converting it into a discrete class. For deep learning model learning and verification, RGB images of the harvested cabbage 522 were obtained. The core region and depth labeling and data augmentation techniques from the acquired images was processed. MAP, IoU, acuity, sensitivity, specificity, and F1-score were selected to evaluate the performance of the proposed YOLO-v4 deep learning model-based cabbage core area detection and classification model. As a result, the mAP and IoU values were 0.97 and 0.91, respectively, and the acuity and F1-score values were 96.2% and 95.5% for depth classification, respectively. Through the results of this study, it was confirmed that the depth information of cabbage can be classified, and that it can be used in the development of a robot-automation system for the cabbage core removal process in the future.

A Study on the Economic Effects of Big Tech Companies: Focusing on the Google Revenue and Tax Issues (글로벌 플랫폼이 국내 경제에 미치는 영향 연구: 구글 매출 추정 및 세원잠식 사례연구를 중심으로)

  • Kang, Hyoung-Goo;Jeon, Seongmin
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.1
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    • pp.1-11
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    • 2023
  • Big tech companies are further strengthening its status against the background of data accumulation, price competitiveness by the platform, and competitive advantage due to the network effect. The competition subcommittee of the European Union(EU) imposed a huge fine on Google for antitrust violations, which was interpreted as an attempt to collect Google's unpaid taxes. In fact, taxation efforts in the form of 'Google tax' are underway, targeting expedient tax avoidance by global platforms. It has power and has a considerable influence on the startup ecosystem. The domestic sales and tax scale of global platforms, which have a great impact on domestic content startups and small and medium-sized venture companies, are not accurately measured. In the case of Google, according to research literature, sales in Korea were estimated at about 2 trillion to 3 trillion won in 2017, but Google Korea reported sales of 290 billion won in 2021 and paid 13 billion won in taxes. This study aims to verify the economic effect of the global platform that has a great influence on Korea, and specifically to quantitatively estimate the annual domestic sales and taxes of Google, a representative global platform. As a result of estimating Google's annual domestic sales and taxes based on the figures presented in the document related to Google's economic effect published by Google, the result was 4 to 9 trillion won in annual sales and 390.6 to 913.1 billion won in taxes. This study is meaningful in that it provides basic data on the direction of national and tax policies in the future digital economy era by estimating the problem of tax authority by country of global platform companies with a specific example of Google.

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The Signaling Effect of Government R&D Subsidies on Inducing Venture Capital Funding (스타트업 대상 정부 R&D 지원금의 벤처 투자 유도 효과)

  • Hong, Seulki;Bae, Sung Joo
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.17 no.6
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    • pp.39-50
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    • 2022
  • Based on the signaling theory, this study examined whether startups are more likely to attract venture investment when receiving government R&D subsidies. First, we reviewed previous studies of the investment decision-making process of venture capitalists and understood the conditions that influence investment decisions. Based on previous studies on the signal effect of government subsidies, particularly government R&D grants, on inducing private fund investment, this study revealed a mechanism to induce venture investment by startups. In addition, in order to verify whether government R&D subsidies have the effect of inducing venture investment, an empirical analysis was conducted based on data from startups under seven years and certified as a venture companies in 2021. This paper used PSM(Propensity Score Matching) method and DID(Difference In Difference) analysis for an empirical study to analyze the average treatment effect on the treated group(beneficiary startups of government R&D grants). As a result of empirical analysis, companies that receive more government R&D subsidies after starting a business are more likely to attract venture investment. From two to three years after conducting the first government R&D project, startups that received government R&D grants attracted more venture investment than those that did not. The results of this paper demonstrate that government R&D projects can also affect the venture investment ecosystem, giving policy implications to government R&D projects targeting startups. It is also expected to suggest strategic implications to startups that need new funding.

Institutional Resources and Systems Affecting Professor Startups and Their Performances: A Panel Data Analysis (대학의 자원과 제도가 교수창업 성과에 미치는 영향에 관한 연구: 패널 데이터 분석)

  • Kim, Jong-woon
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.3
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    • pp.33-43
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    • 2023
  • The paper employs a resource-based approach to analyze the relationship between institutional resources and faculty-led startup formation and performance in South Korean four-year universities from 2017 to 2021. The author proposes nine hypotheses to explain how institutional resources or systems affect the number of faculty startups, their employee numbers and the revenue of faculty-led startups, and compare four different groups of university resources for cross-college variation. The findings suggest that institutional factors impacting faculty-led startup performance differ from those impacting other categories of startups. Universities should provide a more favorable environment, including flexible personnel policies and accompanying startup support infrastructure, to encourage faculty-led startups. In contrast, it is more effective for better performance of faculty startups, in terms of their job creation and revenue, to have more financial resources and good paper publications. The results also suggest that university technology-holding companies are crucial for increasing the number of professor startups and their performance. These findings have implications for both university and government policymakers, who aim to facilitate greater participation of professors in startup formation and commercialization of technology.

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The Effect of Leadership Type in Domestic IT Firms on Firms' Innovation Resistance: Focusing on the Mediating Effect of Organizational Trust (국내 IT 기업 내 리더십 유형이 기업의 혁신저항에 미치는 영향: 조직신뢰의 매개효과를 중심으로)

  • Young Joon Bae;Sungjeong Do;Hyeonjeong Park;Sanghyeok Park
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.18 no.4
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    • pp.103-116
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    • 2023
  • The purpose of this study is to investigate the relationship between vertical leadership and shared leadership, organizational trust and innovation resistance. For this purpose, a regression analysis was conducted based on data from 286 questionnaires completed by employees working in IT companies. As a result of the analysis, both shared leadership and vertical leadership showed a negative relationship with innovation resistance. For organizational trust, it was confirmed that there was a mediating effect in the relationship with innovation resistance. Shared leadership seems to form a stronger negative relationship with innovation resistance than vertical leadership, it was found that shared leadership is more effective in lowering innovation resistance. Therefore, if the strengths of vertical leadership and shared leadership are applied complementary to each other on the basis of organizational trust in promoting innovation, it will be a good way to overcome innovation resistance, which is a barrier to innovation success. To overcome innovation resistance, especially in IT startups, we propose the complementary application of vertical leadership and shared leadership based on organizational trust.

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The Effect of Small Business Entrepreneur's Psychological Traits on Entrepreneurial Orientation and Performance: Focusing on the Moderating Effect of Government Support Programs (소상공인 기업가의 심리적 특성이 기업가정신과 소상공인 사업성과에 미치는 영향: 소상공인 정책자금지원의 조절효과)

  • Lee, Sung In;Yi, Ho-Taek
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.17 no.1
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    • pp.139-155
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    • 2022
  • This paper presented a research model to investigate the relationship between the psychological traits of small business entrepreneurs and entrepreneurial orientation and the relationship between entrepreneurial orientation and performance. To verify the research model, a total of 202 entrepreneurs in Daegu were surveyed and the data obtained were used. The collected data were analyzed by SPSS and AMOS. The results of the analysis showed that all of the psychological traits except 'Agreeableness' and 'Extroversion' among the small business entrepreneur's psychological trait had a positive(+) effect on entrepreneurial orientation. In addition, it was confirmed that entrepreneurship orientation had a positive(+) effect on performance, and government policy funding had a moderating effect between entrepreneurship orientation and performance. In conclusion, the causal relationship between the small business entrepreneur's psychological traits and entrepreneurial orientation is examined, and the moderating effect of government support programs is examined to find out what psychological traits of small business entrepreneurs affect the expression of entrepreneurial orientation. In addition, since entrepreneurial orientation affects performance and government policy funds control, it suggests that continuous financial support for small business entrepreneurs is needed.