• 산업경영시스템학회지
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• 제44권2호
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• pp.1-14
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• 2021

It is highly challenging to measure the efficiency of electric vehicle charging stations (EVCSs) because factors affecting operational characteristics of EVCSs are time-varying in practice. For the efficiency measurement, environmental factors around the EVCSs can be considered because such factors affect charging behaviors of electric vehicle drivers, resulting in variations of accessibility and attractiveness for the EVCSs. Considering dynamics of the factors, this paper examines the technical efficiency of 622 electric vehicle charging stations in Seoul using data envelopment analysis (DEA). The DEA is formulated as a multi-period output-oriented constant return to scale model. Five inputs including floating population, number of nearby EVCSs, average distance of nearby EVCSs, traffic volume and traffic congestion are considered and the charging frequency of EVCSs is used as the output. The result of efficiency measurement shows that not many EVCSs has most of charging demand at certain periods of time, while the others are facing with anemic charging demand. Tobit regression analyses show that the traffic congestion negatively affects the efficiency of EVCSs, while the traffic volume and the number of nearby EVCSs are positive factors improving the efficiency around EVCSs. We draw some notable characteristics of efficient EVCSs by comparing means of the inputs related to the groups classified by K-means clustering algorithm. This analysis presents that efficient EVCSs can be generally characterized with the high number of nearby EVCSs and low level of the traffic congestion.

• 수산경영론집
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• 제52권4호
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• pp.1-11
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• 2021

This study is to investigate the determinants of consumption expenditure by considering potential expenditure factors such as socioeconomic, fishing village tourism behavior, motivation for visits, and optional attributes of tourists at Muchangpo webfoot octopus and finespotted flounder festival in Boryeong. The analysis data are 300 questionnaires of visitors to the festival during the 2018 Muchangpo Mysterious Sea Road Webfoot Octopus and Finespotted Flounder Festival from March 17 to April 8, 2018. As a result of analyzing the factors of consumption expenditure of tourists to the festival in Boryeong, socioeconomic factors such as gender and residential groups outside Chungcheong-do have a positive (+) effect on consumption expenditure. Among the factors of fishing village tourism behavior, the only number of days of stay more than one night has a positive (+) effect on consumption expenditure. In addition, in the analysis of factors for motivation to visit the festival, fun/interest and simple rest/leisure have a significant positive (+) effect on expenditure whereas stress relief have a negative (-) effect on expenditure. In the analysis of the factors of festival selection attributes, tourism facilities has a significant positive (+) effect on expenditure, but natural scenery and excellent natural scenery show a significant negative (-) effect on expenditure. The main implications that can be obtained from the results of this study are as follows. First, it suggests that the promotion should be actively conducted outside of Chungcheong Province in order to achieve the original purpose of revitalizing the local economy from the Muchangpo webfoot octopus and finespotted flounder festival. Second, it indicates that there should be a variety of unique high-quality festival programs differentiated from other local festivals, promoting the existence of simple rest/leisure facilities rather than webfoot octopus boat fishing experiences or natural scenery (i.e., mysterious road and sunset) in order to attract festival tourists' spending at the Muchangpo webfoot octopus and finespotted flounder festival.

• Journal of Korea Trade
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• 제24권7호
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• pp.29-37
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• 2020

Purpose - This paper empirically investigates the relationship between country governance quality and worker remittances from foreign countries. Because remittances can be a source of funds for economic development and smoothing economic crises in developing countries, the related topic has been a concern for policy-makers and academic researchers. This paper divides the motives of remittances into altruistic and investment motives through existing papers, and then considers the governance quality the remittance receiving country as one of the determinants of remittances. Design/methodology - Our empirical model considers whether governance quality can affect the volume of remittances, and uses altruistic and investment factors studied in the literature. To do this, a two-step approach is taken. First, the panel data are examined via pooled OLS, random effects, and Tobit estimation. Second, the paper reduces six governance indicators into one variable, Governance, using the principal component technique (PCA) for a robustness check. Findings - The main findings can be summarized as follows. The negative governance variable in the estimation results shows a lower governance quality that induces workers to send savings to their home countries. This means that a country with poor governance quality seems to have more remittance inflows from abroad. It also reveals that poor governance quality is more relevant to an altruistic motive rather than an investment motive, in general. The positive per capita GDP variable shows the investment motive for developed countries. Originality/value - Existing papers have focused on various factors related to the motives of remittances. However, governance quality effects on remittance inflows have not been fully studied so far. This paper considers governance quality in an estimation equation explicitly as one of the determinants of remittances. This area of study is needed, in theory and empirically, in order to fully understand the relationship between governance and remittances.

• 무역학회지
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• 제47권6호
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• pp.97-117
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• 2022

Amid the growing importance and growth potential of venture firms worldwide, this study aimed to figure out the effect of new product development capabilities (NPDC) on the internationalization of Korean venture firms and the moderating impact of founders' human capital. NPDC is a core competency that can cope with the rapidly changing market environment and is required when entering multinational markets. Therefore, we subdivided founders' human capital into professional experience, startup experience, education level, and marketing capacity and examined each moderating effect on a venture firm's internationalization. As a result of empirical analysis of 1,362 Korean venture firms using the Tobit model, this study found that venture firms with excellent NPDC tend to achieve a higher level of internationalization. In addition, among the founder's human capitals, professional experience, education level, and marketing competency moderated the positive relationship between NPDC and internationalization. In contrast, the founder's startup experience was insignificant. The results of this empirical analysis explain the factors that trigger the internationalization performance of venture firms from the perspective of dynamic capabilities and suggest that the founder's human capital played an essential role in the internationalization.

• 한국산학기술학회논문지
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• 제20권4호
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• pp.232-241
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• 2019

본 연구는 현대 재무관리 이론 상 전형적인 주제로서 현재까지도 지속적인 논의의 대상이 되는 국내 재벌그룹 소속 계열사들의 연구개발비 비중에 대한 재무적 결정요인들에 대한 분석이다. 실증 연구를 통한 분석 결과의 강건성 제고를 위하여 본 연구에서는 다양한 실증적 모형들이 응용되었다. 절대적 추정방법으로서 정적인 패널자료 모형, 토빗 모형 그리고 단계적 회귀 모형 등이 활용되었고, 상대적인 추정방법으로서 로짓, 프로빗 그리고 보완적 로그-로그 모형 등이 재벌소속 계열사와 그에 대한 상대 표본인 비재벌소속 계열사들의 재무적 결정요인의 차별성 규명을 위하여 응용되었다. 실증 분석 결과와 관련, 전년도의 연구개발비 비중, 시장가치 기준의 부채비율 그리고 기업규모 등이 첫 번째 가설에서 표본기업들의 연구개발비 비중에 대하여 통계적으로 유의한 재무적 결정요인으로서 판명되었으며, 후자의 상대적 추정모형 분석에서는 총 11개의 설명변수들 중, 대다수의 변수들이 통계적으로 유의한 것으로 검정되었다. 최근 국내 자본시장에서 요구하는 재벌기업들의 사회-경제적 기능면에서의 점진적 변화 가능성을 전제하여, 본 연구 결과는 재벌소속 계열사들의 적정 연구개발비 수준을 결정하기 위한 선행요인들의 재무적 분석에 기여할 수 있다고 판단된다.

• 대한교통학회지
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• 제33권2호
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• pp.125-135
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• 2015

본 연구에서는 시민들이 인식하고 있는 자전거의 특성과 공공자전거시스템의 사회적 가치에 대한 상관관계를 분석하였다. 이를 위해 최근 10년간 전 세계적으로 활발히 진행되고 있는 공공자전거 서비스를 대상으로 해당 교통 시스템에 대한 사회적 가치를 시민들의 지불의사액으로 설정해 연구를 진행하였다. 지불의사액 추정을 위해서 CVM 방법 중 가장 활발히 활용되고 있는 이중양분선택형(double-bounded dichotomous choice)과 개방형 질문을 통합 활용하여 수원시 시민 1,722명을 대상으로 설문조사를 하였다. 공공자전거에 대한 특성 요소도 함께 질의하여 그 결과를 이항 로지스틱 회귀모형(binary logistic regression)과 중도절단회귀모형(censored regression)을 통해 공공자전거시스템에 대한 사회적 가치인식과의 관계를 검증하였다. 분석결과 월지출 교통비, 소득 그리고 자전거 소유 등의 변수와 함께 교통체증의 해소가 가능한, 버스와 승용차와 같은 교통수단, 높은 이동성을 가지는 수단으로서의 자전거의 특성이 공공자전거의 사회적 가치를 향상시키는 것으로 분석되었다. 이는 공공자전거에 대한 긍정적인 특성들이 인식되면 해당 시스템의 가치를 높게 평가하는 행태로 이어지며, 궁극적으로는 시스템의 이용 가능성을 향상시킨다고 해석될 수 있다. 공공자전거시스템에 대한 특성인식의 중요성을 검증한 본 연구결과를 토대로 공공자전거시스템의 효율성 제고를 위한 정책 추진 전의 검토사항에 대해 고찰해 본다.

• 한국산학기술학회논문지
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• 제18권1호
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• pp.679-687
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• 2017

본 논문의 주제는 국내 자본시장에서 충청권에 본사가 위치한 기업들, 그 중, KOSDAQ 상장 회사들에 대한, 현금유동성 수준에 대한 재무적 결정요인 분석에 대한 실증연구이다. 본 연구를 수행하게 된 주요 동기로는 국제금융위기 이후, 동 표본회사들을 활용한 국내,외 연구들이 현재까지 미약한 수준이라고 판단되며, 현재 충청권 지역이 행정의 중심지로서의 확대와 인구통계학적 견지에서 점증적으로 수도권 등으로 부터의 동 지역으로의 인구 증가도 예상이 될 수 있다는 점 등이 요인들이다. 이러한 가정 하에서, 동 지역 자본시장 기반의 지속적인 학술 연구가 더욱 필요한 시점이라고 판단된다. 본문에서는 3가지의 가설들이 상대적 강건성을 보유한다고 판단되는 계량경제적 모형들 (즉, 정태적 패널자료모형, 토빗모형, 그리고 로지스틱모형 등)을 이용하여 검정이 되었다. 정태적 패널자료모형을 적용한 첫 번째 가설검정 결과와 관련, 동 모형에 입력된 총 9개의 설명변수들 중, 5개의 번수들 (즉, 매출채권회수기간, 유동비율, 부채비울, 매출액순이익률, 그리고 매출액)이 동 표본기업들의 현금유동성 수준에 통계적 유의성을 주는 변수들로 판명되었다. 추가적으로, 로지스틱모형을 활용한 가설검정과 관련하여, 총 설명변수들 중, 오직 2개의 변수들 (즉, 부채비율과 외국인지분율)만이 충청권 내의 2개의 행정지역인 충청북도와 충청남도 (대전시, 세종특별자치시 포함)에 각각 본사를 둔 기업들의 현금유동성 수준에 통계적 차별성을 주는 유의 변수들로 판명되었다. 본 연구결과의 학문적 그리고 실무적 관점에서의 기여점과 관련하여, 본 연구에서 유의성있는 변수들로 판명된 재무적 결정요인들을 향후 활용하여, 기업의 이윤 극대화를 위한 '최적 현금유동성 수준'에 대한 점진적 접근 가능성에 대한 추가 분석도 가능할 것으로 판단된다.

• 경영과정보연구
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• 제28권3호
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• pp.99-115
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• 2009

무역전시는 기업에게 효과적인 해외마케팅 수단을 제공하는 국제촉진수단이며, 전후방 연관효과를 통해 소득과 고용창출에 미치는 파급효과가 뛰어난 고부가가치 서비스산업이다. 본 연구는 무역전시의 참가비 지출과 관련된 소비조사를 통한 미시경제적 접근을 통해 참가비 지출의 결정요인을 분석하여 전략산업으로서의 육성을 모색하기 위함이다. 연구 결과, 참가비에 영향을 미치는 사회 경제적 요인은 관람객의 경우 소득과 교육이 정(正)의 방향을, 연령과 성별은 부(負)의 방향으로 나타났다. 참가업체의 경우 연령과 매출액은 정(正)의 방향으로, 인적구성은 부(負)의 방향으로 영향을 미치는 것으로 나타났다. 참가비에 영향을 미치는 참가 행태 요인으로는 관람객의 경우 티켓구입은 정(正), 거리는 부(負)의 방향으로 나타났고, 참가업체의 경우 거리는 부(負), 참가횟수는 참가비에 정(正)의 영향을 미치는 것으로 나타났다. 만족 요인으로는 관람객의 경우 전시품목과 장소, 입장료 등의 만족도가 정(正)의 영향을 주는 것으로 나타났고, 참가업체의 경우 거래실적과 홍보효과, 장소 등에 관한 만족도가 참가비에 정(正)의 영향을 주는 것으로 나타났다. 본연구의 결과가 무역전시회의 참가결정요인을 제시하여 무역전시의 마케팅 수립과 경영전략에 기초적인 자료가 되기를 기대한다.

• Nutrition Research and Practice
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• 제10권1호
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• pp.56-66
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• 2016

BACKGROUND/OBJECTIVES: Despite successes recorded in combating iodine deficiency, more than 2 billion people are still at risk of iodine deficiency disorders. Rural landlocked and mountainous areas of developing countries are the hardest hit, hence the need to explore and advance novel strategies such as biofortification. SUBJECTS/METHODS: We evaluated adoption, purchase, and consumption of iodine biofortified vegetable legumes (IBVL) using the theory of protection motivations (PMT) integrated with an economic valuation technique. A total of 1,200 participants from three land-locked locations in East Africa were recruited via multi-stage cluster sampling, and data were collected using two, slightly distinct, questionnaires incorporating PMT constructs. The survey also elicited preferences for iodine biofortified foods when offered at a premium or discount. Determinants of protection motivations and preferences for iodine biofortified foods were assessed using path analysis modelling and two-limit Tobit regression, respectively. RESULTS: Knowledge of iodine, iodine-health link, salt iodization, and biofortification was very low, albeit lower at the household level. Iodine and biofortification were not recognized as nutrient and novel approaches, respectively. On the other hand, severity, fear, occupation, knowledge, iodine status, household composition, and self-efficacy predicted the intention to consume biofortified foods at the household level; only vulnerability, self-efficacy, and location were the most crucial elements at the school level. In addition, results demonstrated a positive willingness-to-pay a premium or acceptance of a lesser discount for biofortification. Furthermore, preference towards iodine biofortified foods was a function of protection motivations, severity, vulnerability, fear, response efficacy, response cost, knowledge, iodine status, gender, age. and household head. CONCLUSIONS: Results lend support for prevention of iodine deficiency in unprotected populations through biofortification; however 'threat' appraisal and socio-economic predictors are decisive in designing nutrition interventions and stimulating uptake of biofortification. In principle, the contribution is threefold: 1) Successful application of the integrated model to guide policy formulation; 2) Offer guidance to stakeholders to identify and tap niche markets; 3) stimulation of rural economic growth around school feeding programmes.

• 한국가족관계학회지
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• 제22권4호
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• pp.135-156
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• 2018

Objectives: This study aim to determine adolescent meal time, which provides the important context of parent-child sharing time. We divided mealtime into family meal and alone meal, and analyzed the time/space context of each meal time as well as the social determinations. Method: We employed adolescents age 10-18 who live with married patents and attends school at the present (n=5,128) from the original data of Korean Time Use Survey. Results: More adolescent were engaged in family meal rather than eating alone in daily bases. However, the trend show difference by day of week and academic grade; family meal are more prevalent in weekends rather than weekdays. As adolescent reaches high school age, the proportion of eating alone beats the proportion of family meal time. Most of the meal occur at home. Having meal outside was relatively scares, especially on weekdays. Tobit and logistic analysis reveal that, on weekday meal, less school hours, more time spent at the private academy, having family leisure event, and long mother's housework hours were positively associated with family meal time. In weekend model, father's education gradient was associated with family meal time, showing higher the father's education level, there were higher chance of having weekend family meal. As for the eating alone, relevant factors were similar with family meal but the directions were the opposite; having family leisure were negatively associated with alone meal, both weekdays and weekend. Long academy hours, meal preparing and leisure alone were positively associated eating alone. Overall, weekday meal time was strongly linked with adolescent daily schedules and time use, while for weekends meal, in both family meal and alone meal, the influence of parent factors were discovered. Conclusion: The results indicates that alone meal and the family meal are not exclusively related but seem to be complementary. Families tend to enjoy family meal yet, there are some necessary situation that adolescent need to be on their own. Increase in ready-made food industries, growing independence of children by age seem partly allow adolescent children to eat alone. Careful attentions may require for monitoring weekends meal situation and the family factor of adolescent in future studies.