• 제목/요약/키워드: Low costs

검색결과 1,347건 처리시간 0.028초

행복결정요인에 대한 문화예술 활동참여의 역할 (The Role of Participation in Arts and Cultural Activities in the Determinants of Happiness)

  • 이학준;허식
    • 문화경제연구
    • /
    • 제21권3호
    • /
    • pp.3-30
    • /
    • 2018
  • 본 연구는 서울시민의 행복결정요인에 있어 문화예술 활동참여의 영향력을 파악하기 위해 "2014 서울서베이"의 원자료를 바탕으로 실증분석을 실시하였다. 분석결과 문화예술 활동에 대한 참여는 개인의 행복과 긍정적인 관계에 있는 것으로 나타났으며, 이는 문화예술에 대한 향유 자체에서 즐거움이 발생하며 향유 과정에서 또한 타인과의 사회적 접촉이 유발되기 때문인 것으로 보인다. 이어 개인의 행복뿐만 아니라 문화예술수요에도 상당한 영향을 미치는 소득수준과 교육수준을 고 저 집단으로 나누어 분석한 결과에서도 전반적으로 유사한 결과를 보였다. 특이한 점은 저소득 저학력 집단은 고소득 고학력 집단에 비해 문화예술소비량이 적은 것으로 나타났으나 문화예술 활동에 대한 참여를 통해 얻는 효용의 크기는 더 큰 것으로 나타났는데, 이는 금전 및 시간적 제약에서 비롯하는 기회비용이 고소득 고학력 집단에 비해 저소득 저학력 집단에서 더 크게 작용한 것으로 사료된다. 또한 저소득 집단의 경우, 문화예술 활동에 대한 지출금액이 일정수준을 초과하면 한계효용이 감소하는 추세를 보이는데 이는 문화예술 활동참여에 있어 저소득 집단에서 금전적 제약이 존재함을 의미한다.

The Impact of Public Transfer Income on Catastrophic Health Expenditures for Households With Disabilities in Korea

  • Eun Jee Chang;Sanggu Kang;Yeri Jeong;Sungchan Kang;Su Jin Kang
    • Journal of Preventive Medicine and Public Health
    • /
    • 제56권1호
    • /
    • pp.67-76
    • /
    • 2023
  • Objectives: Previous studies have reported that people with disabilities are more likely to be impoverished and affected by excessive medical costs than people without disabilities. Public transfer income (PTI) reduces financial strain in low-income households. This study examined the impact of PTI on catastrophic health expenditures (CHE), focusing on low-income households and households with Medical Aid beneficiaries that contained people with disabilities. Methods: We constructed a panel dataset by extracting data on registered households with disabilities from the Korea Welfare Panel Study 2012-2019. We then used a generalized estimating equation model to estimate the impacts of PTI on CHE. A subgroup analysis was carried out to assess the moderating effects of family income levels and health insurance types. Results: As PTI increased, the odds ratio (OR) of CHE in households that contained people with disabilities decreased significantly (OR, 0.92; 95% confidence interval [CI], 0.89 to 0.94; p<0.001). In particular, PTI effectively reduced the likelihood of CHE for low-income households (OR, 0.85; 95% CI, 0.81 to 0.89; p<0.001) and those who received medical benefits (OR, 0.78; 95% CI, 0.68 to 0.89; p<0.001). Conclusions: This study highlights the positive effect of PTI on decreasing CHE. Household income and the health insurance type were significant effect modifiers, but economic barriers seemed to persist among low-income households with non-Medical Aid beneficiaries. Federal policies or programs should consider increasing the total amount of PTI targeting low-income households with disabilities that are not covered by the Medical Aid program.

저출산 대응: 가족내 자녀양육지원강화 (The Reinforcement for Policy to Support Child Care Work in Family as the Coping Strategy for Low Fertility Society)

  • 고선주
    • 한국심리학회지 : 문화 및 사회문제
    • /
    • 제18권1호
    • /
    • pp.53-77
    • /
    • 2012
  • 여성의 경제활동참여증가, 생활수준향상 및 가족유지비용증가, 개인적가치우선의 현상에 따라 최근 저출산현상이 더욱 심화되었으며, 이에 대한 사회적 비용 급증을 우려하여 전반적인 대응전략을 마련된 것이 바로 저출산고령사회기본계획이다. 1차에 이은 2차 기본계획은 일반가족의 양육지원과 종합적인 일가정양립지원 강화가 주요 핵심으로 이는 비단 정책뿐아니라 전방위적으로 사회전반에 걸친 변화가 수반되어야 가능한 일이다. 이 논문에서는 이러한 저출산대응정책의 실제사례를 살펴보기 위해 가족과 지역사회내 돌봄지원정책을 살펴 보았다. 가족내 자녀양육지원사업으로서 아이돌봄지원사업과 가족내 돌봄나눔에 있어 핵심요인인 남성의 자녀양육참여를 촉진하기 위한 남성대상교육, 그리고 지역내에서 가족 돌봄나눔을 실천할 수 있는 가족품앗이와 공동육아나눔터 운영을 통해 향후 저출산 정책에서 강조하고 있는 일반가족의 자녀양육지원 방향에 대한 해법을 제시하고 있다.

  • PDF

고객의 시간 지향성: 소매업체에서의 서비스 편의성과 쇼핑 성과의 관계에 대한 조절효과 (Customer's Time Orientation: Moderating Effects on the Service Convenience-Shopping Performance Linkages in Retail Contexts)

  • 김미정;박철주
    • 유통과학연구
    • /
    • 제14권2호
    • /
    • pp.123-133
    • /
    • 2016
  • Purpose - Understanding how service convenience drives shopping performance is imperative for retailers such as department and large discount stores. Retailers have to enhance shopping productivity by reducing the costs of shopping, as convenience triggers customers' perceived shopping value, leading to customer satisfaction, and ultimately patronage behavior. Consumers, generally considering time as a scarce resource, are more sensitive to the time costs of tasks in regard to shopping trip, differently from forming perceptions of convenience in time orientation. Therefore, this study attempts to examine the moderating effects of consumers' time orientation on the relationships among service convenience of retailers and shopping performances such as shopping value and service performances. Research design, data, and methodology - The department and discount store chains were chosen as the point of analysis in this study. Data were collected from a survey of real-life consumers and all respondents were screened to ensure only those who had visited in the department and discount store chains within past six month prior to the day of data collection. Out of 600 self-reported surveys that were distributed, a total of 530 responses were returned and after excluding 20 incomplete responses, the final sample size was 510. The three hypotheses were proposed and tested in this study. The one hypothesis was on the moderating effects of time orientation for the effects of service convenience on shopping value (hedonic and utilitarian shopping value). The other two hypotheses were on the comparisons between high and low time-oriented customers with the effects in shopping value from service performance. Hierarchical moderated regression analysis was used to test the hypotheses. Results - The results suggest that the effect of service convenience on utilitarian shopping value and the positive effect of utilitarian shopping value on customer satisfaction are greater in low time orientation than high time orientation customers. Conversely, when customers are highly oriented toward time, the effects of hedonic shopping value on customer satisfaction and revisit intention are greater than for customers who are lowly oriented toward time. Conclusions - This study has two-fold significance. First, this study contributes to the consumer behavior and services marketing literature by incorporating customers' time orientation into the service convenience-shopping performance. Although the effect of service convenience on shopping performance might differ from customers' perceptions concerning shopping, there has been little investigation or comparison between customers' perception on time. This study is a first attempt to consider how the effects of service convenience on shopping value and service performance vary with differing levels of customers' time orientation. This study advances prior studies by showing that the service convenience-shopping value and service convenience-service performance relationships vary across different combinations of the customer's time orientation. The findings of this study suggest that the retailers need to enhance the experiential aspects of the stores for their high time-oriented customers. Conversely, for the low time-oriented customers, the retailers should boost the visual distinctiveness and ease of store navigation.

개인통신망 설계를 위한 최소 비용 경로 (Minimum Cost Path for Private Network Design)

  • 최홍식;이주영
    • 한국정보과학회논문지:시스템및이론
    • /
    • 제26권11호
    • /
    • pp.1373-1381
    • /
    • 1999
  • 이 논문에서는 통신망 설계 응용분야의 문제를 그래프 이론 문제로써 고려해 보았다. 개별 기업체가 서로 떨어진 두 곳을 연결하고자 할 때 공용통신망의 회선을 빌려 통신망을 구축하게 되는데 많은 경우 여러 종류의 회선들이 공급됨으로 어떤 회선을 선택하느냐의 문제가 생긴다. 일반적으로 빠른 회선(low delay)은 느린 회선(high delay)에 비해 비싸다. 그러나 서비스의 질(Quality of Service)이라는 요구사항이 종종 종단지연(end-to-end delay)시간에 의해 결정되므로, 무조건 낮은 가격의 회선만을 사용할 수는 없다. 결국 개별 기업체의 통신망을 위한 통로를 공용 통신망 위에 덮어씌워(overlaying) 구축하는 것의 여부는 두 개의 상반된 인자인 가격과 속도의 조절에 달려 있다. 따라서 일반적인 최소경로 찾기의 변형이라 할 수 있는 다음의 문제가 본 논문의 관심사이다. 두 개의 지점을 연결하는데 종단지연시간의 한계를 만족하면서 최소경비를 갖는 경로에 대한 해결을 위하여, 그래프 채색(coloring) 문제와 최단경로문제를 함께 포함하는 그래프 이론의 문제로 정형화시켜 살펴본다. 배낭문제로의 변환을 통해 이 문제는 {{{{NP-complete임을 증명하였고 {{{{O($\mid$E$\mid$D_0 )시간에 최적값을 주는 의사선형 알고리즘과O($\mid$E$\mid$)시간의 근사 알고리즘을 보였다. 특별한 경우에 대한 {{{{O($\mid$V$\mid$ + $\mid$E$\mid$)시간과 {{{{O($\mid$E$\mid$^2 + $\mid$E$\mid$$\mid$V$\mid$log$\mid$V$\mid$)시간 알고리즘을 보였으며 배낭 문제의 해결책과 유사한 그리디 휴리스틱(greedy heuristic) 알고리즘이 그물 구조(mesh) 그래프 상에서 좋은 결과를 보여주고 있음을 실험을 통해 확인해 보았다.Abstract This paper considers a graph-theoretic problem motivated by a telecommunication network optimization. When a private organization wishes to connect two sites by leasing physical lines from a public telecommunications network, it is often the cases that several categories of lines are available, at different costs. Typically a faster (low delay) lines costs more than a slower (high delay) line. However, low cost lines cannot be used exclusively because the Quality of Service (QoS) requirements often impose a bound on the end-to-end delay. Therefore, overlaying a path on the public network involves two diametrically opposing factors: cost and delay. The following variation of the standard shortest path problem is thus of interest: the shortest route between the two sites that meets a given bound on the end-to-end delay. For this problem we formulate a graph-theoretical problem that has both a shortest path component as well as coloring component. Interestingly, the problem could be formulated as a knapsack problem. We have shown that the general problem is NP-complete. The optimal polynomial-time algorithms for some special cases and one heuristic algorithm for the general problem are described.

상품라인별 가격결정이 적재효율 및 물류비에 미치는 영향에 관한 연구 (Study on the Effect of Product Line Pricing on Loading Efficiency and Logistics Cost)

  • 정성태;윤남수;한규철
    • 유통과학연구
    • /
    • 제12권8호
    • /
    • pp.55-69
    • /
    • 2014
  • Purpose - Despite the importance of price, many companies do not implement pricing policies smoothly, because typical price management strategies insufficiently consider logistics efficiency and an increase in logistics costs due to logistics waste. This study attempts to examine the effect of product line pricing, which corresponds to product mix pricing, on logistics efficiency in the case of manufacturer A, and analyzes how logistics performance changes in response to these variables. Research design, data, and methodology - This study, based on the case of manufacturer A, involved research through understanding the current status, analyses, and then proposing improvement measures. Among all the products of manufacturer A, product group B was selected as the research object, and its distribution channel and line pricing were examined. As a result of simulation, for products with low loading efficiency, improvement measures such as changing the number of bags in the box were suggested, and a quantitative analysis was conducted on how these measures influence logistics costs. The TOPS program was used for the Pallet loading efficiency simulation tool in this study. To prevent products from protruding out of the pallet, the maximum measurement was set as 0.0mm, and loading efficiency was based on the pallet area, and not volume. In other words, its size (length x width) was focused upon, following the purpose of this study and, then, the results were obtained. Results - As a result of the loading efficiency simulation, when the number of bags in the box was changed for 36 products with low average loading efficiency of 73.7%, as shown in

    , loading efficiency improved to 89.9%. Further, from calculating logistics cost based on the cost calculation standard of manufacturer A, the amount of annual logistics cost reduction amounted to 101,458,084 KRW. Given that the sum of the logistics cost of the product group B of manufacturing enterprises A is 400,340,850 KRW, it can be reduced by 25%, to 298,882,766 KRW. Although many methods improve loading efficiency, this study proved that logistics cost could be reduced by changing the number of bags within boxes. If this measure is applied to other items, visible logistics cost reduction effects will be realized through improvements in loading efficiency. Conclusions - Future pricing policies should consider their correlation with quality, loading efficiency, product specifications, and logistics standardization to prevent logistics waste, enabling management to improve earnings for companies. Thus, when companies decide pricing policies for new products, the aspects of merchandising and marketing should take priority; however, the aspect of logistics also needs to be considered as significant. Measures revealed by the study results are not only the responsibilities of manufacturing enterprises. Pricing policy agreements between manufacturing enterprises and distribution companies, and logistics factors related to price determination should be considered; further, governments should also support them for their collaborations. This will enable consumers to purchase quality products with low prices.

  • 국내 주요 항구도시의 선박 배기가스 배출량 산정 및 사회적 비용 추정 (Estimation of Atmospheric Pollutant Emissions from Vessels in Major Harbor Cities in Korea and related Social Cost)

    • 최정길;김명원;이효진;강태순;이강웅
      • 해양환경안전학회지
      • /
      • 제27권7호
      • /
      • pp.905-917
      • /
      • 2021
    • 본 연구는 국내 항구도시 인천, 목포, 광양, 부산, 울산의 대기오염물질 배출특성, 대형선박 배기가스 배출량 및 사회적 비용을 산정하여 배출가스 저감방안의 필요성을 제시하였다. 부산은 선박 입항수가 많고 목포는 선박 입항수는 적지만 선박 배기가스에 의한 배출기여도는 두 항구도시 모두 높았다. 울산은 세계적 수준의 중화학공업, 광양은 제철소, 인천은 제조업과 선박 입항수가 목포보다 많았지만 배출기여도는 낮았다. 선박 배기가스 배출량 산정 결과, CO2의 배출량이 가장 많고 다음으로는 NOx, SOx으로 배출량이 많았다. 선종별로는 부산, 울산, 인천은 유조선, 광양은 일반화물선, 목포는 여객선에서 각각 많았다. 사회적 비용 결과, 부산은 배출량이 많은 영향으로 사회적 비용이 높았으며, 항목별로는 PM이 높았다. 저황유 사용으로 PM, SOx 배출량을 직접적으로 줄이고, NOx의 배출량을 간접적으로 줄 일수 있다. 하지만 선박 배기가스 중 가장 많은 배출량을 보인 CO2를 저감하기 위해서는 저황유의 보급만으로는 부족하다. CO2 배출량 감축을 위해서는 육상전원공급장치(Alternative Maritime Power)를 사용하는 등 화석연료를 사용하지 않는 저감방안 수립의 필요성을 제기하였다.

    Wide-Range Sensorless Control for SPMSM Using an Improved Full-Order Flux Observer

    • Lee, Kyoung-Gu;Lee, June-Seok;Lee, Kyo-Beum
      • Journal of Power Electronics
      • /
      • 제15권3호
      • /
      • pp.721-729
      • /
      • 2015
    • A sensorless control method was recently investigated in the robot and automation industry. This method can solve problems related to the rise of manufacturing costs and system volume. In a vector control method, the rotor position estimated in the sensorless control method is generally used. This study is based on a conventional full-order flux observer. The proposed full-order flux observer estimates both currents and fluxes. Estimated d- and q-axis currents and fluxes are used to estimate the rotor position. In selecting the gains, the proposed full-order flux observer substitutes gain k for the speed information in the denominator of the gain for fast convergence. Therefore, accurate speed control in a low-speed region can be obtained because gains do not influence the estimation of the rotor position. The stability of the proposed full-order flux observer is confirmed through a root-locus method, and the validity of the proposed observer is experimentally verified using a surface permanent-magnet synchronous motor.

    Lung Cancer Detection by Screening - Presenting Circulating miRNAs as a Promising Next Generation Biomarker Breakthrough

    • Ramshankar, Vijayalakshmi;Krishnamurthy, Arvind
      • Asian Pacific Journal of Cancer Prevention
      • /
      • 제14권4호
      • /
      • pp.2167-2172
      • /
      • 2013
    • Lung cancer remains a major cause of morbidity and mortality worldwide, accounting for more deaths than any other cause. All the clinical practice guidelines recommended against routine screening for lung cancer have cited lack of robust evidence, at least until a few years back. However, the potential to screen lung cancers has received renewed interest due to superior performance of low dose CT (LD-CT) in detecting early stage cancers. The incremental costs and risks involved due to the invasive procedures in the screened population due to a high false positivity rate questions the use of LD-CT scan as a reliable community based screening tool. There is therefore an urgent need to find a less invasive and a more reliable biomarker that is crucial to increase the probability of early lung cancer detection. This can truly make a difference in lung cancer survival and at the same time be more cost and resource utilization effective. Sampling blood serum being minimally invasive, low risk and providing an easy to obtain biofluid, needs to be explored for potential biomarkers. This review discusses the use of circulatory miRNAs that have been able to discriminate lung cancer patients from disease free controls. Several studies conducted recently suggest that circulating miRNAs may have promising future applications for screening and early detection of lung cancer.

    Lab Color Space based Rice Yield Prediction using Low Altitude UAV Field Image

    • Reza, Md Nasim;Na, Inseop;Baek, Sunwook;Lee, In;Lee, Kyeonghwan
      • 한국농업기계학회:학술대회논문집
      • /
      • 한국농업기계학회 2017년도 춘계공동학술대회
      • /
      • pp.42-42
      • /
      • 2017
    • Prediction of rice yield during a growing season would be very helpful to magnify rice yield as it also allows better farm practices to maximize yield with greater profit and lesser costs. UAV imagery based automatic detection of rice can be a relevant solution for early prediction of yield. So, we propose an image processing technique to predict rice yield using low altitude UAV images. We proposed $L^*a^*b^*$ color space based image segmentation algorithm. All images were captured using UAV mounted RGB camera. The proposed algorithm was developed to find out rice grain area from the image background. We took RGB image and applied filter to remove noise and converted RGB image to $L^*a^*b^*$ color space. All color information contain in both $a^*$ and $b^*$ layers and by using k-mean clustering classification of these colors were executed. Variation between two colors can be measured and labelling of pixels was completed by cluster index. Image was finally segmented using color. The proposed method showed that rice grain could be segmented and we can recognize rice grains from the UAV images. We can analyze grain areas and by estimating area and volume we could predict rice yield.

    • PDF