A5086269486- Consumer Market Behavior and Pricing
- Auction Theory and Applications
- Educational Research and Pedagogy
- Merger and Competition Analysis
- Flowering Plant Growth and Cultivation
- Education and Learning Interventions
- Art History and Market Analysis
- Education, Safety, and Science Studies
- Horticultural and Viticultural Research
- Consumer Retail Behavior Studies
- Plant Physiology and Cultivation Studies
- Housing Market and Economics
- Wine Industry and Tourism
- Global trade and economics
- Meningioma and schwannoma management
- Neurofibromatosis and Schwannoma Cases
- Consumer Behavior in Brand Consumption and Identification
- Firm Innovation and Growth
- Educational Systems and Policies
- Ecology and Conservation Studies
- Nutrition, Health and Food Behavior
- Corruption and Economic Development
- Franchising Strategies and Performance
- Plant tissue culture and regeneration
- Nutrition and Health in Aging
Sogang University
2021-2024
Kyungpook National University
2018-2022
Nazarbayev University
2013-2021
Ecolab (United States)
2017-2020
Mokpo National University
2016-2020
Chonnam National University
2017
Institute of Natural Resources
2017
Hanseo University
2015
Youngdong University
2013
Seoul National University
2012
Abstract In this paper, I study how and why consumers react differently to package downsizing price increases that result in the same degree of unit increases. Utilizing differential responses South Korean milk manufacturers production cost rise 2018, first show strongly prefer increases, tendency does not diminish over time. Then, develop a theoretical model whose prediction is consistent with empirical findings, providing simple but novel explanation fully informed would be less sensitive than
Understanding firm conduct is crucial for industrial organization and antitrust policy. In this article, we develop a testing procedure based on the Rivers Vuong non-nested model selection framework. Unlike existing methods that require estimating demand supply system, our approach compares fit of two first-stage price regressions. Through an extensive Monte Carlo study, demonstrate test performs comparably to, or outperforms, in detecting collusion across various collusive scenarios. The...
In this paper, I study the short-run effect of social distancing due to COVID-19 outbreak on movie demand and box-office revenue. Using longitudinal data Korean theater industry, first estimate a nested logit model demand, then quantify revenue loss in industry. Estimation results reveal that decrease underlying is approximately 52 million dollars nationwide during five weeks after outbreak, implying 34 percent sales. The also suggest an additional 42 were lost as delay some major movies...
We study the impact of a boycott on one largest Korean dairy producers, triggered by exposure firm’s unethical management practices, sales its own and others. find empirical evidence that had substantial long-lasting consequences. First, consumer utility from boycotted products decreased significantly, reflecting consumers’ strong willingness to take part in collective action. Second, our discrete choice demand model, which addresses both price endogeneity product substitution, estimates...
Objectives: The purpose of this study was to understand what peri-menopausal women know in order enhance perimenopausal management. Methods: Data collection performed December 2010. A total 211 Seoul and City S, Gyeonggido were surveyed using a convenience sample. Collected data analyzed SPSS. Results: We found that 86% had not received any health education on menopause 92% wanted more about menopause. Women who acquired relevant information from hospital (or medical staff) high levels...
Abstract BACKGROUND: The objective of this study was to identify the prognostic factors for hearing preservation that would allow more accurate stratification patients who undergo stereotactic radiosurgery (SRS) unilateral, sporadic vestibular schwannoma (VS). METHODS: In total, 119 with VS had serviceable underwent SRS as primary treatment. mean (±standard deviation) patient age 48 ± 11 years, and follow‐up duration 55.2 35.7 months. median marginal radiotherapy dose 12.0 grays (Gy), tumor...
Background This study was conducted to examine energy drink consumption patterns among nursing students and identify related factors that may influence those students' intake levels. Methods The subjects were from seven universities located in the Chungcheong Province of Korea. A total 1,620 questionnaires used for analysis. Results Of students, 1,265 (78.1%) reported having consumed drinks. average amount when studying their most recent midterm examination 1.63 ± 2.64 cans per week, number...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBiological activity and a modified synthesis of 8-amino-3-.beta.-D-ribofuranosyl-1,2,4-triazolo[4,3-.alpha.]pyrazine, an isomer formycinStewart W. Schneller, Robert D. Thompson, Joseph G. Cory, Ray A. Olsson, Erik De Clercq, In Kyung Kim, Peter K. ChiangCite this: J. Med. Chem. 1984, 27, 7, 924–928Publication Date (Print):July 1, 1984Publication History Published online1 May 2002Published inissue 1 July...
This study was carried out to examine the effects of NaOCl, sucrose, and BA concentration as pretreatment solution on quality vase life cut flowers in Dendranthema grandiflorum 'Jinba'. Flower diameter, fresh weight, control 0 mg・L-1 NaOCl treatments decreased, treatment with 100~200 more effective life. In 2.5% sucrose solution, flower diameter weight decreased shortest due rapid leaf wilting. However, 0.1% increased showed longest When than 80 treated shortened. With 20 BA, bigger other...
Purpose: The purpose of this study was to investigate the influence breakfast characteristics university students on their self-regulated learning, attentional control, and fatigue in order provide-basic data for establishing desirable eating habits, learning skills using advisable habits students. Method: level estimated Visual analogue scale (VAS) Critical flicker frequency (CFF). Attentional control measured Control Questionnaire (ACQ) adapted by Yoon. Self-regulated surveyed...
In this article, I exploit the exogenous shock to China's image in COVID‐19 pandemic era and study impact of country on consumer choice South Korean beer market. First, find that Tsingtao , a popular Chinese brand, lost about 4.8 million liters sales, 20% decrease, during first eight months after outbreak. Second, worsened had not weakened by October 2020. Third, top‐selling non‐Chinese beers absorbed most 's sales. These findings reveal has substantial influence choice.
The objective of this study was to determine the effects dry and wet conditions during harvest shipping on quality vase life cut flowers using standard chrysanthemum cultivar 'Baekma'. Wet (Wet-Wet) treatments maintained a high fresh weight extended their by 2 days compared (Dry-Dry) treatments. However, no significant difference observed in or between (Dry-Wet) Wet-Wet Dry-Dry treatment also resulted lower chlorophyll fluorescence ratios (Fv/Fm) than treatment, it means had more stress...
This study was carried out to examine the effective wet harvesting solution for development of distribution system in standard chrysanthemum (Dendranthema grandiflorum) 'Baekma'. The cut flowers were treated immediately floral preservative solutions or dry condition after harvesting, and then effects on quality flower compared. Also, we investigated NaOCl sucrose vase life flower. When tap water, Chrysal OVB, Floralife, Hiflora diameter fresh weight increased compared treatment. In single...
This study was conducted to examine the effects of wet storage solution, transport period and temperature on vase life quality cut flowers in standard chrysanthemum 'Jinba'. Immediately after transport, fresh weight flower diameter did not show a difference according solutions regardless period, but as increased, increased. The bud stage at harvest maintained due small changes diameter, freshness leaves better when transported 5°C than 25°C. When 25°C, longer lower some petals opened up...
Purpose: The purpose of this study was to investigate the effects SP-6 Seoam pellet therapy given female university students in terms menstrual pain, distress, and ADL difficulties. Methods: This used a pre-test, post-test design with nonequivalent control group. participants were 68 two universities. experimental group(n=34) received at Sanyinjiao while sham therapy. Data collected from Sep. 16 Nov. 30, 2012. Severity difficulty assessed prior following treatment. Independent t-test,...
본 연구는 기준 미설정 국내 유통 농산물 5품목 (상추, 호박, 양상추, 양배추, 쑥갓)의 규격 설정을 위해 모니터링 자료를 확보하고자 전국에서 총 407건의 시료를 수거하여 ICP-MS와 수은분석기를 이용하여 납, 카드뮴, 비소 및 수은의 함량을 분석하였다. 대상 5품목의 납의 평균 함량은 0.001~0.026 mg/kg, 카드뮴은 0.001~0.018 비소는 0.001~0.008 수은은 0.0005~0.004 mg/kg 이었다. 모든 시료의 카드뮴 채소류의 Codex 허용기준 (엽채류:납 0.3 0.2 과채류: 납 0.1 0.05 mg/kg)보다 낮은 수준이었다. 연구의 결과와 2008년 국민건강영양조사의 식품별 1일 평균섭취량을 근거로 위해평가를 실시한 결과 조사대상 모두를 평균섭취량으로 섭취한다고 하더라도 섭취량은 모두 PTWI 값의 1% 이하의 수준인 것으로 나타났다. 이상의 결과는 중금속 오염도와 이들의 섭취에 의한 위해도가 수준이라는 것을 보여준다. This...
Purpose: The purpose of this study was to investigate the effect supplemental vitamin D on physiological indices, muscle mass, and physical functions aged women. Methods: A non-equivalent pretest-posttest design used. participants were 65 elderly women with low serum levels. This conducted for 12 weeks. experimental group (n