• 제목/요약/키워드: Research and Development economics

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The Existence of Random Walk in the Philippine Stock Market: Evidence from Unit Root and Variance-Ratio Tests

  • CAMBA, Abraham C. Jr.;CAMBA, Aileen L.
    • The Journal of Asian Finance, Economics and Business
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    • 제7권10호
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    • pp.523-530
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    • 2020
  • The efficient market hypothesis explains the random walk hypothesis suggesting that stock prices are independent of each other, hence, it is impossible to earn abnormal profits. The positive effect of a well-functioning and highly efficient stock market on the performance of an economy motivated the Philippine Stock Exchange to pursue massive modernization initiatives. This research provides evidence of the existence of random walk in the Philippine stock market employing the Augmented Dickey-Fuller (1981) and Phillips-Perron (1988) unit root tests, the Lo-MacKinlay's (1988) conventional variance ratio test, and Chow-Denning's (1993) simple multiple variance ratio test. Results of the ADF and PP unit root tests confirm the necessary condition for a random walk. The Chow-Denning (1993) maximum /z/ statistic and the Wald test statistic as in Richardson and Smith (1991) for the joint hypotheses and the Lo and MacKinlay (1988) individual statistics variance ratio test generally accepted the null hypothesis of a random walk. That is, the unit root and variance ratio tests consistently indicate that the null hypothesis of random walk cannot be rejected. The existence of a random walk in weak-form efficiency can be attributed to market liquidity as a result of continuous development and modernization of the Philippine equity market.

The Rise of Corporate Digital Transformation and Government Regulatory Innovation

  • PAN, Xiao-Yan;XIAO, Shu-Feng
    • 동아시아경상학회지
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    • 제9권4호
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    • pp.103-111
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    • 2021
  • Purpose - We attempt to provide a background, a review of current development of the digital technologies and their effect on the digital transformation process, and then offer our recommendations for identifying and taking strategic actions to exploit them. More importantly, we also aim to offer important recommendations for policymakers and practitioners how to better advance the innovation system by facilitating the development of digital technologies and take advantage of improvements in digital technologies. Research design, data, and methodology - This study undertakes an extensive and critical review of the digital transformation literature and identifies several important issues with relevant practical examples of best practices in the transition to digital transformation process. Results - This paper finds that digital technologies with strong technological backing have brought technological spillovers to the economy while also generating shocks. Conclusion - To maintain a healthy and developing market order, it is necessary for governments to innovate regulatory models. This study offers several important suggestions for government regulatory innovation that we believe should help to better deploy digital transformation initiatives and enhance the efficiency and effectiveness of government regulation in contributing more to the high-quality and healthy development of the digital economy.

The Effect of Korean Native Chicken Breed Information on Consumer Sensory Evaluation and Purchase Behavior

  • Park, Seoyoung;Kim, Nayeong;Kim, Wooksung;Moon, Junghoon
    • 한국축산식품학회지
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    • 제42권1호
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    • pp.111-127
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    • 2022
  • This study examined how chicken breed affects consumer behavior. The breeds evaluated were a Korean native chicken (KNC) and a commercial broiler (CB). Consumer behavior was measured by evaluating sensory attributes (taste, odor, and texture) and purchase behaviors [satisfaction, purchase intention, and willingness to pay (WTP)]. The sensory evaluation was conducted using healthy Korean consumers (n=100). The chicken was cooked in baeksuk (Korean traditional chicken soup), which is a seasonal summer health food in Korea. The participants evaluated sensory attributes and purchase behaviors between blinded samples of baeksuk (CB) and unblinded samples of baeksuk (KNC). The sensory evaluation involved chicken breasts and legs. The participants considered KNC as having a more umami taste, a chewier and juicer texture, and a less metallic odor than CB. Moreover, when participants were given KNC breed information, they expressed higher satisfaction, purchase intention, and WTP. The results of this study contribute to consumer behavior literature by revealing the effects of breed information on consumer sensory perceptions and purchase behaviors. Furthermore, the findings provide evidence that branding KNC is one way to increase its demand and low market share while contributing to sustainable consumption.

세계시민역량 함양을 위한 초등 가정과 세계시민교육 교수·학습 과정안 개발 및 효과 검증 (Development and Validation of a Global Citizenship Education Teaching-Learning Plan and its Effects on Fostering the Global Citizenship Competencies of Elementary School Students)

  • 권보은;유난숙
    • Human Ecology Research
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    • 제62권2호
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    • pp.351-368
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    • 2024
  • The objectives of this study were to develop, implement a home economics education teaching-learning plan and assess its effects to enhance global citizenship competencies among upper elementary school students. The ADDIE model was employed for learner needs analysis, instructional design, development and implementation. This was followed by assessments of global citizenship competencies and class satisfaction. Based on an analysis of the core ideas associated with an area of "Living Environment and Sustainable Choice," four practical problems were designed: What actions should I take for the rational management of living resources? What actions should I take to ensure consciousness of the need to respect diversity in daily life? What actions should I take to maintain a safe and healthy living environment? What actions should I take to make sustainable choices? Based on these four practical problems, four lesson topics were developed in accordance with both the voyeur's and the critical perspectives, resulting in a total of 8 sessions. The subsequent delivery of an 8-session class on global citizenship education in home economics yielded significant improvements in the global citizenship competencies (knowledge, skills, attitudes, and willingness to act) of 37 elementary school students immediately after the sessions. The significance of this study lies in its focus on the core ideas of the revised 2022 curriculum, thereby offering directions for the development of global citizenship education within the curriculum.

AHP를 이용한 농업생산기반정비사업 타당성평가 개선방안 (Revision of Feasibility Evaluation Guideline for Agricultural Infrastructure Improvement Project Using AHP Approach)

  • 윤성욱;이석주;이한성;정원호
    • 농촌계획
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    • 제25권2호
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    • pp.35-45
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    • 2019
  • This study revises current feasibility evaluation guideline for agricultural infrastructure improvement project considering recent changes in social and economic environment in rural area. We use an AHP(Analytic Hierarchy Process) approach to consider qualitative evaluation items in policy enforcement and balanced regional development as well as quantitative items in current economic analysis in the process of feasibility evaluation and decision making. The criteria system is composed of three level hierarchy. In the first level which consists of economic analysis, policy analysis, and regional development analysis, economic analysis was ranked top with relative weight of 0.45 and regional development analysis the lowest with 0.22. In the second level which consists of three evaluation items under policy analysis, consistency in policy enforcement, risk factors, and special evaluation factors, consistency in policy enforcement was ranked top. Finally, 13 detailed evaluation items in the third level were surveyed and ranked by using a comprehensive criticality vector. The result shows that the three most important evaluation items are 'degree of underdevelopment', 'spill-over effect of regional economy' and 'consistency with related planning and policy direction'.

Directions of the Activation of the Development of a Small Innovative Enterprise

  • Antypenko, Nadiia;Dongcheng, Wang;Lysenko, Zhanna;Krasnonosova, Olena;Grynevych, Liudmyla
    • International Journal of Computer Science & Network Security
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    • 제21권12spc호
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    • pp.495-502
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    • 2021
  • The study is devoted to substantiation of directions of intensification of development of small innovative enterprise, which has a significant impact on the overall innovation activity of the country and promotes innovative development, transition to more advanced technological systems. The outlined role of small business in innovative development in the direction of intensifying innovation in the economy, improving organization and production, as well as in the form of direct participation in the innovation process, production of science-intensive products, stimulating demand for innovation. A group of factors hindering the development of small innovative entrepreneurship was identified, including: financial aspects of the activity, shortcomings of organizational and communicative nature, underdeveloped technology market, information plan problems, internal production problems of small business, market problems. The directions of intensification of the development of small innovative entrepreneurship are substantiated, namely: financial and credit support of small innovative entrepreneurship; introduction of tax incentives; material and technical support; nationwide intensification of innovation activity; information support; development of innovation infrastructure. The involvement of the outlined directions of intensification of small innovative entrepreneurship will help to obtain a synergistic effect of innovative development of both small innovative business structures and the economy as a whole.

가정과 실습의 효율화를 위한 학습자료 개발에 관한 연구 - 고등학교 의생활 영역의 스커트 만들기를 중심으로 - (The Rearch for the development of practice material in Home Economics)

  • 김기애;김여숙
    • 한국가정과교육학회지
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    • 제13권3호
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    • pp.13-22
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    • 2001
  • The Purpose of this study is to enhance the efficiency of clothing-making units in the textbook of Home Economics for the high school students. I handed out a research paper with several questions to 75 teachers and 87 students to find out the realities of the education. There are several problems of making clothes at class: lack of time, appropriate equipment and efficient learning material. To solve these problems. I made a half-sized skirt kit utilizing OPTI Tex. a type of CAD in fashion design and copied it by silkscreen. and let the students use it. Both of the teachers and students showed positive response to the newly made kit of my own. saying that \"it is very handy to prepare and it\`s very helpful to figure out how to make skirt. \" Using the kit. we could reduce the time to make clothes by about 60 % and do well in the classroom without any sewing machines.

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The Development of Islamic Banking and Financial Institution in United Kingdom

  • Azma, Nurul;Aisyah, Siti;Izzah, Nurul;Rahman, Mahfuzur
    • Asian Journal of Business Environment
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    • 제8권2호
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    • pp.5-13
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    • 2018
  • Purpose - The aim of this study is to investigate the problems, challenges, opportunities and future prospects of Islamic banking and finance in the UK. However, this study brings forward into 3 main purposes. Firstly, to explore the development of financial institutions, products and regulatory reforms. Secondly, to find out the performance of Islamic banking institutions. Lastly, to identify the problems, challenges and Islamic banking future prospects. Research design, data, and methodology - An in-depth literature review was carried out to fulfil the research objectives. Results - The findings point out the basic problems of Islamic banking industry in UK such as unfavorable regulatory environment, unfamiliarity with the Islamic Banking System, lack of portfolio management, absence of liquidity instruments, in need of professional bankers, and blending of approach of Islamic scholars with the approach of the conventional bankers. The findings also indicate that there are greater opportunities in the UK for development and growth of Islamic financial system because Muslim community is eager to take financial products. Conclusions - It is hoped that issues pertaining to Islamic banking products can be resolved through consensus of Shariah scholars. There is need to educate the Muslim community about Islamic financial products and service.

백워드 수업설계에 기초한 고등학교 「기술·가정」교과 '가족생활 설계' 영역의 체제적 수업개발 (Systematic Development of Instruction for Family Life Planning of High School Curriculum for Technology and Home Economics Based on Backward Design)

  • 유세종;이연숙
    • Human Ecology Research
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    • 제56권1호
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    • pp.33-54
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    • 2018
  • This study devised an instruction that applies the content factors of Family Life Planning to backward design by exploring the fundamental concepts of backward design and the structure of developing a systematic instruction. Furthermore, it was conducted to improve the developed instruction by examining its validity with the help of experts and to find the method of applying it to the curriculum. The lesson design of this study was as follows. 1) Making a unit outline, 2) Identifying the expected results (Shaping the objectives), 3) Deciding acceptable evidence (Planning evaluation), 4) Making a detailed blueprint for class tasks, 5) Planning learning experience, 6) Making a learning experience plan per time, 7) Checking the lesson design. Second, experts participated in this study for the internal validity test about the process of the systematic lesson development of Family Life Design based on a backward design. The results were shown to be valid because the average was 3.7 out of a perfect score 4 and the CVI of all was over 0.9. The result of the IRA was also score 1, meaning that most of the experts agreed on the results of the test. The details of the lesson design were clear at every stage and the tasks and the results of each stage were specific. This study included most of the necessary stages for a backward design.

Teaching-learning-based strategy to retrofit neural computing toward pan evaporation analysis

  • Rana Muhammad Adnan Ikram;Imran Khan;Hossein Moayedi;Loke Kok Foong;Binh Nguyen Le
    • Smart Structures and Systems
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    • 제32권1호
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    • pp.37-47
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    • 2023
  • Indirect determination of pan evaporation (PE) has been highly regarded, due to the advantages of intelligent models employed for this objective. This work pursues improving the reliability of a popular intelligent model, namely multi-layer perceptron (MLP) through surmounting its computational knots. Available climatic data of Fresno weather station (California, USA) is used for this study. In the first step, testing several most common trainers of the MLP revealed the superiority of the Levenberg-Marquardt (LM) algorithm. It, therefore, is considered as the classical training approach. Next, the optimum configurations of two metaheuristic algorithms, namely cuttlefish optimization algorithm (CFOA) and teaching-learning-based optimization (TLBO) are incorporated to optimally train the MLP. In these two models, the LM is replaced with metaheuristic strategies. Overall, the results demonstrated the high competency of the MLP (correlations above 0.997) in the presence of all three strategies. It was also observed that the TLBO enhances the learning and prediction accuracy of the classical MLP (by nearly 7.7% and 9.2%, respectively), while the CFOA performed weaker than LM. Moreover, a comparison between the efficiency of the used metaheuristic optimizers showed that the TLBO is a more time-effective technique for predicting the PE. Hence, it can serve as a promising approach for indirect PE analysis.