• Title/Summary/Keyword: Revealed preference

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A Status Analysis of Middle School Students' Preference for Science

  • Yoon, Jin
    • Journal of The Korean Association For Science Education
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    • v.22 no.5
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    • pp.1010-1029
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    • 2002
  • The purpose of this research was to survey middle school students' preference for science and its causal factors, so as to analyze the causal relationships between them. Preference for science and its causal factors were defined theoretically, and a theoretical model was constructed to measure them and analyze the causal relationship by structural equation modeling. According to the theoretical model and a pilot test, a questionnaire was developed with three parts; the background information of a respondent, the preference for science, and the causal factors of preference. The questionnaire was administered to one class per grade of randomly selected 8 middle schools from 4 areas across the country, and 819 students' data were collected. Preference for science was defined as a state of mind. It revealed to what extent, and how, one likes science. It consisted of 3 categories - 'emotional response', 'behavioral volition', 'valuational comprehension', and each category was divided into two subcategories. Causal factors affecting the preference for science consisted of three categories - personal, educational and social factors, and each was divided into 2 or 3 subcategories. Middle school students' preference for science was middling as a total. Curiosity about contents of science and valuation of science were high, comparatively, but behavioral volition about science was especially low. Students' responses to the causal factors were relatively high in every educational factor and sociocultural valuation of social factors, but relatively low in socioeconomic rewards of social factors, and especially low in personal factors. The causal relationship about the preference for science was investigated by multiple regression analysis and path analysis, using the structural equation model. Multiple regression analysis about the preference for science and its causal factors revealed important factors. The important factors were personal ability, the personal traits, rewards in school science, and contents of school science in order of magnitude of standardized regression coefficient ${\beta}$. Stepwise regression analysis with each of the subcategories of the preference for science as dependent variables showed what factors were important in each subcategory. According to the result of structural equation modeling, personal factors affected 'emotional response' and 'behavioral volition' directly, and social factors affected 'valuational comprehension' directly. Educational factors affected all categories of the preference for science by influencing not only 'emotional response' and 'valuational comprehension' directly, but also 'behavioral volition' indirectly. The way to promote middle school students' preference for science was suggested, based on the analysis result.

Influence of $CO_2$ constraints to airlines by EU-ETS on passenger behavior (EU-ETS로 인한 항공사의 탄소비용증가가 항공여객에게 미치는 영향)

  • Kim, Baek-Jae;Yoo, Kwang-Eui;Choi, Youn-Chul
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.19 no.3
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    • pp.61-68
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    • 2011
  • 유럽연합(EU)은 2012년부터 항공산업에 대해 탄소배출권 거래제도를 적용할 예정이다. 따라서 유럽공항에서 출발 및 도착하는 모든 국제선과 국내선 항공편에 대해 탄소세가 부과될 것이며 이는 한국도 예외는 아니다. 또한 유럽을 운항하는 경우 장거리에 해당되어 중단거리를 운항하는 항공기들에 비해 총 탄소배출량이 더 많으므로 비용부담이 커질 것으로 예상된다. 본 연구는 EU-ETS로 인한 탄소세가 항공요금에 반영된다면 항공여객들이 어느 정도 민감하게 반응할 것이며 이러한 점들이 궁극적으로 한국의 항공시장에 어떤 영향을 미칠 것인지를 파악해 보는데 목적이 있다. 이를 위해 인천국제공항에서 프랑크푸르트 국제공항 노선을 이용하는 승객을 대상으로 직항노선과 중동지역 경유노선을 비교하여 EU-ETS 가격이 반영된 항공요금에 대한 반응을 Revealed Preference (RP)와 Stated Preference (SP) 설문자료와 Logit Model을 사용하여 분석하였다. 본 연구결과는 한국의 항공산업은 물론 2012년부터 부과될 EU-ETS에 대한 항공사들의 전략개발에 도움이 될 것이다.

Multi-Modal Controller Usability for Smart TV Control

  • Yu, Jeongil;Kim, Seongmin;Choe, Jaeho;Jung, Eui S.
    • Journal of the Ergonomics Society of Korea
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    • v.32 no.6
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    • pp.517-528
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    • 2013
  • Objective: The objective of this study was to suggest a multi-modal controller type for Smart TV Control. Background: Recently, many issues regarding the Smart TV are arising due to the rising complexity of features in a Smart TV. One of the specific issues involves what type of controller must be utilized in order to perform regulated tasks. This study examines the ongoing trend of the controller. Method: The selected participants had experiences with the Smart TV and were 20 to 30 years of age. A pre-survey determined the first independent variable of five tasks(Live TV, Record, Share, Web, App Store). The second independent variable was the type of controllers(Conventional, Mouse, Voice-Based Remote Controllers). The dependent variables were preference, task completion time, and error rate. The experiment consist a series of three experiments. The first experiment utilized a uni-modal Controller for tasks; the second experiment utilized a dual-modal Controller, while the third experiment utilized a triple-modal Controller. Results: The first experiment revealed that the uni-modal Controller (Conventional, Voice Controller) showed the best results for the Live TV task. The second experiment revealed that the dual-modal Controller(Conventional-Voice, Conventional-Mouse combinations) showed the best results for the Share, Web, App Store tasks. The third experiment revealed that the triple-modal Controller among all the level had not effective compared with dual-modal Controller. Conclusion: In order to control simple tasks in a smart TV, our results showed that a uni-modal Controller was more effective than a dual-modal controller. However, the control of complex tasks was better suited to the dual-modal Controller. User preference for a controller differs according the Smart TV functions. For instance, there was a high user preference for the uni-Controller for simple functions while high user preference appeared for Dual-Controllers when the task was complex. Additionally, in accordance with task characteristics, there was a high user preference for the Voice Controller for channel and volume adjustment. Furthermore, there was a high user preference for the Conventional Controller for menu selection. In situations where the user had to input text, the Voice Controller had the highest preference among users while the Mouse Type, Voice Controller had the highest user preference for performing a search or selecting items on the menu. Application: The results of this study may be utilized in the design of a controller which can effectively carry out the various tasks of the Smart TV.

A Study on the Consumption Pattern of Aquacultured Marine Fishes (양식어류의 소비 패턴에 관한 연구)

  • 김성귀;홍장원;이승우
    • The Journal of Fisheries Business Administration
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    • v.34 no.2
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    • pp.53-73
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    • 2003
  • This paper is to analyze the past and present consumption pattern of fishes aquacultured in marine waters and thus to draw the policy direction to enhance the competitiveness of marine fish aquaculture in Korea. At present, the volume of meat consumption is surveyed to be more than that of marine fish, but it is revealed that fish consumption will become more increasing in the future according to the rise of the income. The survey shows that the consumption of fish is highest in the fall, and among the various patterns of consumption, live fish, so-called susi, is surveyed to be highly dominant. It is revealed that fish is enjoyed because of the special savor, diverse nutrients, and the prevention of adult diseases. Natural fish Is revealed to be more preferred to aquacultured one due to the sticky flesh quality and the low probability of the remained after the production process antibiotics, so that it is necessary to enhance the taste quality and make a clean cultivation to capture more market demand. Consumption of high-quality fish seems to become high in more than middle class and consumption of fish are estimated to increase in the future, more than that of meat if income level of the people increases. Also, if we try to make our high-quality fish become popular among the public and competible with the imported fish from abroad, it is recommended that they must lower production price by cost reduction and try to differentiate it by taste and environmental safety, etc. It was revealed that the significant factor in demand function for fish is income and it is almost the only factor affecting that demand. Also, it was revealed that the most significant factor affecting preference of fish is income and it Is almost the only factor affecting the preference. Therefore, we can ascertain that if proper goods can be distributed, demand for and preference of fish may increase according to the increase of income in the future.

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Research on Sensibility Image of Pattern Applying the Formative Elements of a Traditional Jokakbo -The Surface Composition and Colors- (조각보의 조형성을 응용한 패턴의 감성 이미지 연구 -면 구성과 색채를 중심으로-)

  • Eun Young-Ja;Choi Yoon-Hye
    • The Research Journal of the Costume Culture
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    • v.13 no.2 s.55
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    • pp.289-299
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    • 2005
  • Through the formative analysis of the traditional jokakbo, we have composed surface composition that was made by a perfect square, triangle, a weather vane type, vertical type, cintamani type, and a mixed rectangular. And we have composed 18 kinds of motif stimulants that was made by vivid tone, pale tone, and so on, and finally analyzed sensibility image, preference rate of them. The cause of composition for the sensibility image of stimulant was composed by the cause of simplicity characteristics, interesting characteristics, rigid-flexibility characteristics, and modern characteristics. And from these things, the cause of simplicity characteristics and the cause of interesting characteristics were revealed as important dimensional factors of sensibility image. The sensibility image of motif was revealed as a simple image of perfect square, a feminine image of cintamani type, a modern image of mixed rectangular. And black-white colored mixed rectangular and chromatic colored cintamani type were also revealed as an interesting image. The preference rate of motif is related with the cause of interesting characteristics and simplicity characteristics, it also has been revealed to prefer the pale tone than others. And it also has been revealed that achromatic colored mixed rectangular, cintamani type of vivid tone, perfect square and rectangular of pale tone were mostly preferred.

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The Effect of Fit between Knowledge Conversion Preference and Job Character on Job Effectiveness (지식전환선호도와 직무특성이 직무유효성에 미치는 영향)

  • Ha Gab-Jin;Seong Jeong-Hyeon
    • Management & Information Systems Review
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    • v.17
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    • pp.161-189
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    • 2005
  • As the importance of intellectual assets has been brought into relief, this study aims at positively verifying where the intellectual workers' overall level of their knowledge conversion preference and their job character has reached, and how much the knowledge conversion preference, the job character and the fitness of both factors affects the job effectiveness respectively. For this purpose 3 types of research hypotheses were set up and the result of the verification of the hypotheses is summarized as follows: First, the verification of the relation between the knowledge conversion preference and the job effectiveness revealed that the workers who have the higher synthetic ability in knowledge conversion preference show the higher job satisfaction and job product. Secondly, the verification of the relation between the MPS representing the job character by measured index and the job satisfaction revealed that the absolute value of relative coefficient between the 4 factors excluding the public welfare factor and the MPS is 4, interpreted as medium correlation. Thirdly, the analysis on the degree of relation between the job product measured by the quality of job result and the input effort and the MPS showed that the absolute value of person relative coefficient is 5, interpreted not only as medium correlation but also very meaningful. Accordingly, the main purpose of this study was to give a guideline which can be utilized as an indicator for educating, training and placing the workers. As results, the main effect that the variable of knowledge conversion preference and job character chosen as the independent variable influences on the dependent variable of job satisfaction and job product is very meaningful except the public welfare factor.

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The effect of consumer trust on positive online reviews of cosmetics (기능성 화장품의 온라인 사용 후기 신뢰도가 브랜드 선호도, 광고 신뢰도 및 구매의도에 미치는 영향 - 자외선 차단제의 긍정적 사용 후기를 중심으로 -)

  • Park, Ji Hye;Kim, Mi Sook;Hwang, Choon Sup
    • The Research Journal of the Costume Culture
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    • v.25 no.6
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    • pp.831-846
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    • 2017
  • Considering that the effectiveness of ads varies according to the credibility of consumers, it is necessary to establish data regarding consumer credibility in relation to online reviews. To conduct a successful study on the marketing strategies of online reviews, it is also necessary to analyze the relationship between credibility and the various factors that influence the purchase intentions of consumers. Therefore, this study attempted to examine the relationship between consumer trust of on-line reviews, brand preference, ads credibility, and purchase intentions in relation to cosmetics. The study was conducted through a normative descriptive survey method using stimuli and a self-administered questionnaire. Analysis of the structural equation model was conducted for the data analysis. The results revealed that consumer reliance on online reviews of cosmetics influences brand preference, credibility of brand ads and purchase intentions. The results also revealed that consumers' on-line reviews, brand preference, and trust of brand ads are important factors for increasing the purchase intentions. The mediation effect of brand preference and brands' ads credibility were found in the process where on-line reviews exercise an influence on the purchase intentions. It was also found that brand preference has a stronger influence on purchase intention than credibility of brand ads. It was discovered that the credibility of on-line reviews directly influences purchase intentions more than indirectly influences. Considering the results of this study, programs that encourage customers to post on-line reviews, and strategies to promote brand preference by targeting groups that exhibit high trust in online reviews would be recommended.

Predictors and Consequences of Brand Preference in Luxury Restaurants

  • Jin, Nae-Hyun Paul;Lee, Sang-Mook
    • Culinary science and hospitality research
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    • v.20 no.5
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    • pp.22-28
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    • 2014
  • This research proposes and empirically tests a model of the relationships among perceived food quality, perceived service quality, perceived environment quality, brand preference, trust, satisfaction and favorable recipient behavior within the context of luxury restaurant patronage. Hypotheses implied by the model are tested on a sample of 398 patrons of U.S. luxury restaurants. Findings revealed that perceived food quality, perceived service quality, and perceived environment quality positively effect on the brand preference, and the brand preference positively and directly influence on favorable recipient behaviors as well as trust and satisfaction. These findings are discussed in terms of both academic and practitioner implications.

Store Attributes, Personal Characteristics and Situations on Store Choice: Independent Fashion Specialty Stores versus Franchised Chain Stores (점포선택에 따른 점포속성, 개인적 특성 및 상황: 패션보세점과 브랜드의 비교)

  • 사공수연;박경애
    • Journal of the Korean Home Economics Association
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    • v.38 no.5
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    • pp.25-41
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    • 2000
  • This study examined the relationships of store preference with perceived store attributes and consumers' individual characteristics and the impacts of shopping situations on actual store choice. Data were obtained from an on-site questionnaire survey to a convenience sample of young consumers. A total of 456 responses was analyzed. Based on store preference and store choice, respondents were divided into four preference(or choice) groups of: Independent fashion specialty store; Independent general fashion store; Department store and Brand-franchised store. MANOVA, ANOVA and $\chi$$^2$ analyses revealed that there were significant differences among 4 store preference groups on 3 store attribute factors(price, promotion, and merchandise & displays), fashion involvement, perceived financial risk and 5 demographic characteristics(age, gender, marital status, education and spending). Also, there were significant differences among 4 store choice groups on 3 shopping situations the respondents had experienced. Based on the results, the study provided a profile of each store preference group and marketing implications.

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Preference and Intake Frequency of Daily Korean Traditional Food of China-Korean in Yanbian Area (중국 연변 조선족의 한국전통 일상음식에 대한 선호도에 섭취빈도)

  • Park Young-Sun
    • Korean journal of food and cookery science
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    • v.22 no.1 s.91
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    • pp.80-87
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    • 2006
  • The purpose of this study was to identify the perceptional patterns of Korean traditional food and to compare the preference and intake frequencies of daily traditional Korean food among the identified perceptional patterns in the Yuabian area. Data were collected from 261 Korean housewives in Yanbian and underwent cluster and group mean analysis. The results revealed two different patterns: tradition-oriented vs. modem-oriented. Descriptive statistics showed that perceptional patterns are likely to vary depending on socio-demographic background as well as the preference and intake frequencies of daily traditional food. Similarities and differences in these perceptional patterns, the preference and the intake frequencies of traditional daily food are discussed, and future implications for food nutritionists and Asia marketers are presented.