Search

Obtaining the most economic benefits while using the least resources and causing the least environmental damage is an urgent and key problem in achieving sustainable development. The concept of eco-efficiency provides a comprehensive perspective for observing and solving this problem. This paper proposes an extended data envelopment analysis model, named the WIN-US-SBM, as a comprehensive eco-efficiency evaluation method that can accommodate undesirable outputs, all the identification problems of decision-making units (DMUs), possible slacks of variables, and the problems of an insufficient number of available DMUs and intertemporal comparability. China's Western Taiwan Straits Economic Zone (WTS Economic Zone) is an important regional economic growth center. By applying WIN-US-SBM and ArcGIS software, we investigated data on the temporal and spatial evolution characteristics of eco-efficiency in the WTS Economic Zone for the years 2009–2016. Later, the global Malmquist–Luenberger index was used to decompose the sources of growth in eco-efficiency. Finally, the main driving factors of eco-efficiency were explored through a Tobit regression analysis. The empirical results show that: (1) The overall eco-efficiency of the WTS Economic Zone had greatly improved, increasing by 11.46% annually, and the cumulative growth rate of eco-efficiency was 110.84% from 2009 to 2016. (2) The eastern area had the highest average eco-efficiency, followed by the western area and the middle area in that order. Also, the growth rate of the middle area ranked first (16.68%), whereas the eastern area had the slowest growth in eco-efficiency (7.22%). (3) On the whole, the growth of eco-efficiency was driven mainly by technological progress and was restricted by the decrease in management level, which implies that policy makers should focus on improving management and technical levels. (4) High levels of economic development, population density, market openness, and industrial structure had positive effects on the eco-efficiency of the WTS Economic Zone, whereas energy intensity and expenditure on science and technology had negative impacts. • An extended DEA model is proposed to measure eco-efficiency more comprehensively. • The proposed model can be widely applied to input-output efficiency evaluations. • The eco-efficiency of the WTS Economic Zone was evaluated based on a novel model. • The growth of eco-efficiency was driven mainly by technological progress. • The eco-efficiency level is negatively related to energy intensity. [ABSTRACT FROM AUTHOR]

Abstract The paper discusses how the intercultural knowledge is enhanced in a technology-enabled learning environment. We developed a comparative reflection approach, for an undergraduate course participated by three groups of students, who were globally distributed in the US, Mainland China, and Taiwan. Made possible by the videoconferencing technology, the approach included two group-based tasks of describing, comparing, analyzing, and reflecting on everyday activities and cultural practices. To evaluate the design effectiveness, we conducted a discourse-based ethnographic study to examine the knowledge construction stimulated by the task design. We identified that, while all the three groups constructed cultural-specific knowledge on the first task, some constructed deep cultural knowledge and insightful cross-cultural interpretations on the second task. As student groups undertook the two progressive tasks, they worked through various levels of understandings, hence moving from surface to deep learning. Highlights • Three globally distributed groups of undergraduate students were connected via the videoconferencing technology. • The three groups participated in two progressive tasks to describe, compare, analyze, and reflect on everyday practices. • All the three groups constructed certain cultural-specific knowledge, while two constructed deep cultural knowledge. • The learning gap highlighted the necessity of task clarity and appropriate scaffolding in the teaching and learning design. • The groups also constructed understandings about the presentation format by learning from the best practices. [ABSTRACT FROM AUTHOR]