• Title/Summary/Keyword: data-based model

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An Analysis on the Current Farm Management Record Practices and Characteristics (농업인의 경영기록 실태 및 특성 분석)

  • Lee, Sang-Hak;Choi, Se-Hyun;Son, Chan-Soo;Ha, Hyun-Jung
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.13 no.7
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    • pp.2937-2948
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    • 2012
  • Record-keeping is one of the most fundamental practices in good farm management as it shows a systemic managerial and analytic data essential for a successful farm operation. Despite such obvious benefits in record-keeping, however, today`s farmers do not take advantage of this practice for various reasons. To make the matter worse, not much research has been done to resolve this incompatibility. Therefore, it is urgent for both the government and the farmers to come up with a better method or book of record-keeping that will show the farmers where their operation has been in the past, where it is now, and where it is heading in the future. This study will survey and analyze the current status of record-keeping practice among farmers using statistic models such as logit and ordered probit model. The results showed that the majority of the farmers lack knowledge about management record. Also, appropriate record-keeping books and related education were not available. Therefore, the government should develop and provide farmers with record-keeping books that are easy to use and at the same time giving proper education about agricultural management skills. Finally, this study suggests some improvement plans about agricultural record-keeping based on the results drawn.

An Empirical Study on Causality among Trading Volume of Busan, Kawangyang and Incheon port (부산항, 광양항, 인천항의 물동량간 인과관계 분석)

  • Choi, Bong-Ho;Kim, Sang-Choon
    • Journal of Korea Port Economic Association
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    • v.26 no.1
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    • pp.61-82
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    • 2010
  • The purpose of this study is to examine the causuality among export and import trading volume of port of Busan, Kwangyang, Incheon and to induce policy implications. In order to test whether time series data is stationary and the model is fitness or not, we put in operation unit root test, cointegration test. And We apply Granger causality and impulse response and variance decomposition based on VECM. The results indicate that the trading volume of port of Busan is not largely influenced by that of port of Kawangyang and Incheon, but the trading volume of port of Kawangyang and Incheon is largely influenced by other ports including port of Busan. The result suggest that government has to focus on policy that the port of Kawangyang and Incheon can raise its own competitiveness in the world market.

Cost Effectiveness Analysis of Different Management Strategies between Best Supportive Care and Second-line Chemotherapy for Platinum-resistant or Refractory Ovarian Cancer

  • Luealon, Phanida;Khempech, Nipon;Vasuratna, Apichai;Hanvoravongchai, Piya;Havanond, Piyalamporn
    • Asian Pacific Journal of Cancer Prevention
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    • v.17 no.2
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    • pp.799-805
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    • 2016
  • Background: There is no standard treatment for patients with platinum-resistant or refractory epithelial ovarian cancer. Single agent chemotherapies have evidence of more efficacy and less toxicity than combination therapy. Most are very expensive, with appreciable toxicity and minimal survival. Since it is difficult to make comparison between outcomes, economic analysis of single-agent chemotherapy regimens and best supportive care may help to make decisions about an appropriate management for the affected patients. Objective: To evaluate the cost effectiveness of second-line chemotherapy compared with best supportive care for patients with platinum-resistant or refractory epithelial ovarian cancer. Materials and Methods: A Markov model was used to estimate the effectiveness and total costs associated with treatments. The hypothetical patient population comprised women aged 55 with platinum-resistant or refractory epithelial ovarian cancer. Four types of alternative treatment options were evaluated: 1) gemcitabine followed by BSC; 2) pegylated liposomal doxorubicin (PLD) followed by BSC; 3) gemcitabine followed by topotecan; and 4) PLD followed by topotecan. Baseline comparator of alternative treatments was BSC. Time horizon of the analysis was 2 years. Health care provider perspective and 3% discount rate were used to determine the costs of medical treatment in this study. Quality-adjusted life-years (QALY) were used to measure the treatment effectiveness. Treatment effectiveness data were derived from the literature. Costs were calculated from unit cost treatment of epithelial ovarian cancer patients at various stages of disease in King Chulalongkorn Memorial Hospital (KCMH) in the year 2011. Parameter uncertainty was tested in probabilistic sensitivity analysis by using Monte Carlo simulation. One-way sensitivity analysis was used to explore each variable's impact on the uncertainty of the results. Results: Approximated life expectancy of best supportive care was 0.182 years and its total cost was 26,862 Baht. All four alternative treatments increased life expectancy. Life expectancy of gemcitabine followed by BSC, PLD followed by BSC, gemcitabine followed by topotecan and PLD followed by topotecan was 0.510, 0.513, 0.566, and 0.570 years, respectively. The total cost of gemcitabine followed by BSC, PLD followed by BSC, gemcitabine followed by topotecan and PLD followed by topotecan was 113,000, 124,302, 139,788 and 151,135 Baht, respectively. PLD followed by topotecan had the highest expected quality-adjusted life-years but was the most expensive of all the above strategies. The incremental cost-effectiveness ratios (ICER) of gemcitabine followed by BSC, PLD followed by BSC, gemcitabine followed by topotecan and PLD followed by topotecan was 344,643, 385,322, 385,856, and 420,299 Baht, respectively. Conclusions: All of the second-line chemotherapy strategies showed certain benefits due to an increased life-year gained compared with best supportive care. Moreover, gemcitabine as second-line chemotherapy followed by best supportive care in progressive disease case was likely to be more effective strategy with less cost from health care provider perspective. Gemcitabine was the most cost-effective treatment among all four alternative treatments. ICER is only an economic factor. Treatment decisions should be based on the patient benefit.

Estimating the Switching Cost in the Korean Residential Electricity Market Using Discrete Choice Model (이산선택모형을 이용한 주거용수용가의 전력서비스 전환비용 추정)

  • Lee, Jongsu;Lee, Dongheon;Lee, Jeong-Dong;Park, Yuri
    • Environmental and Resource Economics Review
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    • v.13 no.2
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    • pp.219-243
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    • 2004
  • Generally, electricity market has monopoly market structure because of need of enormous investment for infrastructure. However, the introduction of competition in network industry as electricity is a tendency of the world with decreasing the effects of economy of scale due to the advancement of technology. Now, electricity industry restructuring is in progress but the competition in electricity retail market is not in force yet in Korea. Whether a effective competition exist or not is very important to policy decision maker who drive restructuring, but there are small numbers of quantitative researches on that. In this study, we estimated the effectiveness of competition in the electricity retail market through switching costs. If switching costs are high, consumers actually can be locked in incumbent firm in spite of introduction of competition. Therefore switching is a critical factor to determine effectiveness of competition and to estimate the size of switching costs quantitatively can proffer the information about whether the competition in the electricity retail market is effective or not in the future. We estimated switching costs using consumer' stated-preference data by conjoint analysis. In according to estimation results, the cost of switching process is not so high, but the relative brand loyalty of an incumbent company is significantly high. And the price is considered as the most important factor choosing an electric service commodity. Based on the empirical results, it is possible to analyze the relationship between suppliers' competitiveness resulted from management efficiency and customers' switching possibilities. The paper therefore provides guidance for suppliers in deciding to enter into retail competition and for policy makers in introducing retail competition. And it has a significance of estimating the switching costs directly.

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An Analysis of the Multiplier Effects of Gyeongsangbuk-Do Provincial Government Relocation on Daegyeong Economic Region (경북도청 이전이 대구경북광역경제권에 미치는 파급효과 분석)

  • Chun, Kyung Ku;Kim, Eun Kyung;Cho, Deokho
    • Journal of the Korean association of regional geographers
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    • v.19 no.2
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    • pp.246-258
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    • 2013
  • The relocation of the public institutions such as the provincial government attracts much attentions since it results in substantial regional economic impacts. In this context this paper analyzes the effects of relocation of Gyeongsangbuk-Do provincial government from Daegu city to Gyeongsangbuk-Do, which is scheduled for 2014, on Daegyeong economic region. Based on the interregional input-output model and I-O data which were provided by the Bank of Korea, this paper examines the multiplier effects of the relocation in terms of production, value added, and employment on Daegyeong economic region and other regions, except for the construction effects of the provincial capital. According to the analysis, the relocation is expected to reduce the production by 290million won, value added by 709million won, and employment by 571 persons in Daegyeong economic region. Also, the relocation turns out to decrease the production by 1,179million won and value added by 123million won of other regions. This paper discusses some policy implications of the analysis.

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A Study about Regional Water Footprint of Rice Production in Agriculture Industry (쌀 농업에 대한 지역별 물 발자국 산정에 관한 연구)

  • Kim, Junbeum;Kang, Hun;Shin, Sang Min
    • Journal of Korean Society of Environmental Engineers
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    • v.35 no.11
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    • pp.827-834
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    • 2013
  • The water footprint of product and service is the total volume of freshwater consumed, directly and indirectly, in the life cycle of a product and service. Up to date, water consumption data for industries and products were not well quantified and developed. Especially it is important to construct for agriculture industry which consumes lots of water. In this study, by using Cropwat 8.0 model, we tried to evaluate regionalized water consumption related with rice production in agriculture industry in eight regions (Gangwon, Gyeongi, Gyeongbuk, Gyeongnam, Jeonnam, Jeonbuk, Chungnam, Chungbuk). As a result, Gyeongbuk region has the lowest water consumption in rice production, which is $1,356.68m^3/ton$, on the other hand, Jeonnam region has the highest water consumption ($1,669.54m^3/ton$). By using the average indirect water consumption ($1,487.87m^3/ton$) of eight regions and direct water consumption, the total water footprint for the rice amount of rice bowl size (130 g), which is 193.6 L was calculated. Based on this research approach, we should develop water footprint database of all agriculture products and expand to other industrial sectors.

Study on Behaviour of Flood Wave-front Varied with Levee Breach Speed in Flat Inundation Area (평탄지형 제내지에서의 제방붕괴속도에 따른 범람홍수파 선단 거동에 관한 연구)

  • Yoon, Kwang Seok
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.1
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    • pp.537-544
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    • 2017
  • An experimental study was carried out to investigate the characteristics of the propagation distance of a flood wave considering the levee failure speed in a flat inundation area. The Ritter solution for one dimensional flow was considered to formulate the experimental results and a representative form with coefficients of k and m, which consider the three dimensional flow characteristics, was applied. The experiments showed that the propagation velocity of the wave front in the inundation area was influenced by the levee breach speed as well as the initial water level, which is a significant variable representing the flood wave behavior. In addition, coefficients k and m are not constants, but variables that vary with levee breach speed. An empirical formula was also suggested using the experimental results in the form of the relationships between k and m. In this study, a large-scale experiment for flood inundation was carried out to examine the behavior of flooding in the inundated area and the relationships between the levee breach speed and wave-front propagation velocity were suggested based on the experimental results. These research results are expected to be used as the baseline data to draw a flow inundation map, establish an emergency action plan, and verify the two-dimensional numerical model.

Relationship among Incivility, Burnout, Coping and Satisfaction to Clinical Practice experienced by Nursing College Students in Clinical Practice. (간호대학생이 임상실습에서 경험하는 무례함, 소진, 대처와 임상실습만족도의 관계)

  • Kim, Jong Gun;Yoo, Jang Hak;Cheon, Eui Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.18 no.1
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    • pp.316-324
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    • 2017
  • The purpose of this descriptive study was to identify the relationship among incivility, burnout, coping, and satisfaction to clinical practice experienced by nursing college students in clinical practice. A set of self-reported questionnaires, which included demographic characteristics, incivility, burnout, coping, and satisfaction to clinical practice, was completed by 160 nursing college students. Data was analyzed using t-test, ANOVA, correlation analysis, and multiple regression analysis by SPSS ver. 18.0. The mean age was 21.5 years. The mean scores, in Likert scales, were 1.18. 3.41, 2.48 and 3.30 out of 5 for items of incivility, burnout, coping, and satisfaction, respectively. According to our analysis, significant positive correlations were observed among incivility, burnout, and coping; significant negative correlations were observed between incivility and satisfaction, as well as between burnout and satisfaction. The predictors on satisfaction to clinical practice were coping, incivility, and burnout. Our model explained 26.6% (F=9.868, p<.001) of the variance. Based on the findings of this study related to main impediment, it is necessary to build prepared practice environments, such as interpersonal relations capacity empowerment and supporting system. Therefore, various nursing curricular programs are needed to promote satisfaction through multilateral collaboration with clinical practice among nursing college students.

Effects of Traditional Market Service Quality Factors on Customer Value, Relational Quality, and Behavioral Intention (전통시장의 서비스품질요인이 고객가치, 관계품질, 행동의도에 미치는 영향)

  • Choo, Myeong-Jo;Jung, Yeon-Sung
    • Journal of Distribution Science
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    • v.13 no.11
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    • pp.79-92
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    • 2015
  • Purpose - The aim of this study is to develop an empirical model of the effects of traditional market service quality factors on customer value, relationship quality, and behavior. The specific objectives of the study are as follows: 1) to classify study objects into cultural tourism markets and non-cultural tourism markets as well as to verify the differences in service quality among the two markets and, 2) to present practical service marketing methods that fit with the characteristics of the traditional markets by amending the five quality evaluation items of SERVQUAL (a multiple-item scale for measuring service quality)to suit the characteristics of the traditional markets and establish the relationship among customer value, relationship quality, and behavior intention. Research design, data, and methodology - The study methods of empirical investigation are as follows. First, this study selected for a study object the Suwon Paldalmun Gate Market to represent the cultural tourism market, and general traditional markets to represent the non-cultural tourism market. This study also conducted personal interviews in order to increase the response rate and collected a total of 418 responses between March 18, 2014 and April 05, 2014. The total of 418 responses used for this study excluded 14 responses that had either misleading information or missing values. Results - This study verified the perceived differences of service quality based on traditional market specialization through an independent sample t-test. It appeared that the perceived service quality of the cultural tourism market was generally higher than that of the non-cultural tourism market. This study executed a path analysis in order to examine the effects of service quality factors on customer value, relationship quality, and behavior intention. This study also comprehensively analyzed the specialized market and non-specialized market separately. Although there were some differences among the results, the overall results were uniform. It appeared that convenience, reliability, and empathy, among the service quality factors, exerted meaningful effects on customer value. On the other hand, convenience, reliability, responsiveness, and empathy, excluding the tangibles, exerted meaningful effects on the relationship quality. In addition, it appeared that all service quality factors exerted meaningful effects on the customer value, relationship quality, and behavior intention. Therefore, the study verified that all of the hypotheses formulated in the study were generally adopted. Conclusions - The implication of this study may be classified into academic and practical implication as follows. With respect to the academic implication, it seems that this study is among the early studies to verify the differences between the cultural tourism market and the non-cultural tourism market. The practical implication of this study is that the perceived service quality, such as convenience, reliability, responsiveness, and tangibles, excluding empathy, was higher in the cultural tourism market than in the non-cultural tourism market. This means that customer satisfaction is enhanced by governmental aid such as hardware, software, and information and communications technology.

An Analysis of Consumer Purchasing Decision Determinants on Local Liquors (지역특산주류 소비자 구매 결정 요인분석)

  • YOU, Jae-Eun;CHOI, Jong-Woo
    • The Journal of Industrial Distribution & Business
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    • v.10 no.6
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    • pp.39-50
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    • 2019
  • Purpose - Since the local liquor industry uses the agricultural products produced in the region as the main raw material, cultivation of the industry can be a way to expand the demand for domestic agricultural products and can contribute to the income increase of the farmers. In addition, the local liquor industry can be developed into a region-specific industry differentiated from other regions by linking with the region's tourism resources. Therefore, in order to achieve various derivative effects through promotion of the local liquor industry, it is necessary to precisely understand the factors related to the purchase and consumption of local liquor which then will lead to an increase in consumption. This study analyzes the current status and problems of local liquor industries and examines the determinants of consumers' purchasing decisions of regional specialties through questionnaires. We will then propose a strategy to promote consumption of locally produced alcoholic beverages. Research design, data, and methodology - An online Domestic Consumer Survey was conducted to identify the actual purchases and uses of local liquors for 500 consumers nationwide. Based on the questionnaire results, the analysis uses an ordered probit model. Results - As a result of analyzing the effect of consumer characteristics on the purchase of local liquors, it was found that the average cost of drinking, income, local specialty, brewery experience, and health concerns have a significant effect on gender, drinking frequency. All the variables except the participation in the training of the special provincial manufacturing method were found to be statistically significant. The statistical significance was at a 1% significance level for the remaining factors excluding the bottle design. This shows that the higher taste, quality, price, and harmony with food, the higher the probability of purchasing local liquors. Conclusions - In the analysis of factors influencing the purchase intention of local liquors, it was found that factors such as taste, quality, price, and harmony with food had a significant effect. Given the diversity of purchasing factors, the importance of diversification strategies is emphasized again. In particular, it will be important to secure wide publicity for local liquors through various PR strategies.