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نتیجه جستجو - DEA-Tobit

تعداد مقالات یافته شده: 3
ردیف عنوان نوع
1 Safety management efficiency of Chinas coal enterprises and its influencing factors Based on the DEA-Tobit two-stage model
کارایی مدیریت ایمنی شرکت های زغال سنگ چیناز و عوامل تأثیرگذار آن بر اساس مدل دو مرحله ای DEA-Tobit-2020
In order to accurately analyze the safety management efficiency of China’s coal enterprises, based on the panel data of 14 coal listed enterprises in 2012–2018, this paper analyzes the overall technical efficiency (TE), pure technical efficiency (PTE) and scale efficiency (SE) of safety management of sample enterprises by the Data Envelopment Analysis (DEA) model, and builds Tobit model of random panel effect to evaluate the impact of business management and safety investment on safety management efficiency. The results show that: in 2012–2018, the average values of TE, PTE and SE of sample enterprises are respectively 0.674, 0.777 and 0.864; all have great room for improvement. The development of PTE and SE in most sample enterprises is unbalanced; TE of sample enterprises does not significantly improve, and shows a trend of rising-decreasing-rising; safety investment, enterprise scale and labor productivity are significantly positively related to safety management technical efficiency, while safety training person time and employees quality are negatively correlated. This paper identified the positive and negative effects of various influencing factors on the safety management efficiency of coal enterprises, and analyzed the main reasons that hinder the improvement of safety efficiency, and puts forward corresponding countermeasures and suggestions, which are helpful for coal enterprises to effectively improve their safety management efficiency and economic efficiency.
Keywords: Safety management efficiency | Coal enterprise | Technical efficiency | DEA-Tobit
مقاله انگلیسی
2 Circular economy in Italian SMEs: A multi-method study
اقتصاد دایره ای در SME های ایتالیایی: یک مطالعه چند روشه-2020
Climate change, population growth, and current rate of consumption at global scale have prompted academic and business communities to challenge the current models of production towards more circular approaches. This study aims at understanding what actions small and medium-sized enterprises (SMEs) are taking to meet the challenges and opportunities of the circular economy (CE), analysing actions, barriers, enablers and the connection between CE, business strategy and performance. This research involved 254 Italian SMEs through a multi-method approach, including interviews, surveys, and focus groups. Twenty different CE practices related to waste management, packaging, supply chain and product/process design have been explored. The results show that several CE practices are simultaneously implemented by SMEs, thus supporting the notion that CE implies a systemic approach to company’s value creation. In particular, waste management was widely applied (e.g. separated waste collection was carried out by 84% of the companies surveyed), while resource saving practices were implemented by only 14% of the sample. Higher costs are the main barrier to CE for early adopters (5.13 on a 7-point Likert-type scale). However, companies implementing CE practices perceive them as a business opportunity rather than a cost, thus showing that CE may represent a source of value creation for companies, particularly SMEs.© 2019 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-NDlicense (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keywords: Safety management efficiency | Coal enterprise | Technical efficiency | DEA-Tobit
مقاله انگلیسی
3 Tourism eco-efficiency of Chinese coastal cities - Analysis based on the DEA-Tobit model
اقتصاد اکولوژیکی گردشگری شهرهای ساحلی چینی - تجزیه و تحلیل بر اساس مدل DEA-Tobit-2017
Tourism eco-efficiency plays an important role in the environment due to serious environment pollution and resource consumption. An evaluation of the tourism eco-efficiency of 53 Chinese coastal cities was conducted for 2003e2013, exploring the overall efficiency levels, regional differences, eco-efficiency types and influencing factors. To achieve the objectives of the study, a data envelopment analysis (DEA)-Tobit model is applied. The major findings indicate that the overall tourism eco-efficiency of Chinese coastal cities is 0.860, which means that only a few cities are effectively efficient and that most cities still have room for improvement. This finding implies that tourism development has a more negative impact on the environment and that there are substantial regional differences in efficiency. The results also show that economic and ecological indicators have significantly positive influences on the tourism eco-efficiency of Chinese coastal cities, while the number of tourists and the use of three major pollutants in the tourism industry have a negative impact. We identify several influencing factors and propose several suggestions for increasing tourism eco-efficiency and the development quality of Chinese coastal cities
Keywords: Tourism eco-efficiency | DEA-Tobit model | Chinese coastal cities
مقاله انگلیسی
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