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The purpose of this paper is to analyze the effects of investment growth in energy sectors of western areas of China on the local economy and emission of carbon dioxide (CO₂).

The paper is based on a two‐region, ten‐sector recursive dynamic computable general equilibrium model which is based on the input‐output table of Shaanxi Province for 2002.

Three different scenarios are considered in a static analysis where the investment in the energy sector of western areas is increased at the rate of 20, 40 and 60 per cent. The changes of some macro‐economic variables are simulated under these scenarios. The long‐term effects on GDP and emission of CO₂ in different scenarios are also simulated. The results show that the GDP growth is 0‐8.92 per cent, households disposable income growth is 0‐8.94 per cent, and emission of CO₂ growth is 0‐11.10 per cent when the investment grows between 0 and 60 per cent. The oil and gas sector is the most effective sector whose growth rate is 0‐19.47 per cent. The effects of investment growth in base period are relatively big but weaken gradually over time in the long‐run.

The paper is of value in highlighting the importance (for policy makers) of considering the development and application of low‐emission technologies to prevent further environmental degradation.

The purpose of this paper is to overview the development of China's emission trading, which is transforming environmental policy measures from traditional command and control regulations to business‐led decision making within government initiated environmental markets, and investigates the main factors that affect China's policy making with regards to further climate changes.

This paper is based on the authors' review of the literatures on emissions trading program in China and their critical analysis.

Initially China's environmental protection policies were focused principally upon the reduction of sulfur dioxide (SO₂) emissions for improving air quality. Since the authorization of the Kyoto Protocol in 2002, project‐based activities such as Clean Development Mechanism producing carbon credit developed rapidly. However, the implementation of carbon dioxide emission trading is still under discussion and research is much inferior to that of SO₂ emission trading. The barriers of and suggestions for designing future emissions trading market are also discussed.

This review helps to raise awareness and understand possible scenarios for emission trading in China.

The purpose of this paper is to identify the main environmental impacts of coal mining in China, examine the main institutions and reform factors that failed the control of these damages, and discuss what would be necessary to establish a sustainable and environmentally responsible coal mining sector in the context of market and institutional reforms.

Review of existing knowledge, and semi‐structured interviewing with key informants in the policy and industry sectors has been the main method of primary and secondary data collection. Grounded theory was used to analyze original data.

The large and fast growing coal industry in China has caused significant environmental degradation, including land subsidence and water intrusion, as well as remarkable records of miner's poor safety and health. Market reform was mostly unsuccessful in integrating environmental consideration into production and marketing decisions. Main factors of reform that have been associated with this problem are price deregulation and excessive competition inside the industry. Institutional reform, in fact, enhanced the status of State Environment Protection Agency; however, it impaired environmental governance in the coal industry. It is suggested that market reform as applicable to the China coal industry economic sector in particular should reconsider its approach in light of the numerous problems it has created.

The paper identifies and puts together the condition of the growing coal industry in China after market reform, articulating the huge environmental costs that this development has imposed on the country, while calling for an environmentally sustainable coal industry.

The purpose of this paper is to find some feasible measures to solve the problems faced in China's renewable energy development and promote the industrial development of China's renewable energy.

The paper summarises the status and studies the problems of China's renewable energy industrial development, and then puts forward some proposals for the industrial development.

The paper finds that most of China's renewable energy technology is still in the transitional period from research and development to industrial production, and that the renewable energy industrial development needs the establishment of a series of technical experiments and demonstration projects to analyze and investigate the resources, the conversion and market development experience, and then form complete sets of equipment design and manufacturing, cultivation and collection of biomass resources and technology development capabilities, and that regulations should be established to provide a solid foundation for the large‐scale development of China's renewable energy. As a result, some development measures are suggested in the paper.

The paper raises the problems faced in China's renewable energy development, and gives some feasible development measures for the industrial development of China's renewable energy.

The purpose of this paper is to put forward countermeasures to ensure China's energy security based on an analysis of the world energy security situation and challenges China faces in the future in terms of energy security.

An induction approach is adopted to analyze the energy security situation of the world and that of China.

Although available energy resources can meet the medium and long‐term global energy demand, the world energy security faces lots of severe challenges in the aspects of demand and supply factors, infrastructure, geopolitics and strict environmental protection requirements, etc. China's energy supply security faces many challenges in the coming 20 ∼ 30 years or even in the long term. Taking external factors into consideration, the primary challenge is to ensure a stable and sustainable oil supply with reasonable prices. Though the external conditions are of great importance to China's energy security, the influences of domestic factors also need to be well recognized. With energy resources supply being the bedrock of energy security, the establishment of domestic energy market system and energy management framework will exert momentous impact upon the energy security. In addition, while the petroleum supply security is emphasized, attentions should at the same time be paid to the supply security of other energy products, especially to the supply of China's fundamental energy resource of coal.

The paper provides useful and timely analysis of world energy resources, world energy security situation and world economic performances.

This study empirically investigates how ambidextrous innovations and their balancing affect the supply chain financing performance (SCFP) of small and medium-sized enterprises (SMEs), based on signaling theory. Moreover, this study explores the moderating effect of the breadth and depth of digital technology deployment on the relationship between ambidextrous innovations and the SCFP of SMEs.

A mixed-methods design is used, including a qualitative study and a quantitative study. Qualitative data have been collected from six multi-cases in different industries. Questionnaire data have been collected from 259 SMEs in China, and a multiple regression model is used to verify the research hypotheses.

The findings indicate that, in supply chain financing, both exploitative innovation and exploratory innovation are helpful in improving the SCFP of SMEs. For resource-constrained SMEs, a relative balance between exploitative innovation and exploratory innovation can help improve SCFP. The breadth of digital technology deployment can strengthen the relationship between exploitative innovation and SCFP, while the depth of digital technology deployment can weaken the relationship between exploratory innovation and SCFP. In addition, increasing the depth of digital technology deployment strengthens the positive correlation between the relative balance of ambidextrous innovations and SCFP.

To effectively obtain supply chain financing, SMEs can either concentrate their limited resources on a single type of innovation or use relative balance strategies to simultaneously pursue two innovations. In addition, in the process of obtaining supply chain financing by ambidextrous innovations, SMEs should appropriately deploy digital technologies.

This study first deconstructs the impact mechanism of ambidextrous innovation capabilities on SCFP based on signaling theory, and then discusses the balancing effect of ambidextrous innovations on SCFP in the cases of resource-constrained SMEs. This study also goes further and finds the negative moderating effect of digital technology deployment in the process of supply chain financing.

When designing the electrode widths of the electrode-width-weighted (EWW) input interdigital transducers (IDTs) according to the envelope amplitudes of the wavelet function, the EWW wavelet transform processor (WTP) using surface acoustic wave (SAW) devices can be fabricated. The electrode widths have influence on the frequency characteristic of the EWW WTP using SAW devices. The purpose of this research is to solve the influence of the electrode width accuracy on the frequency characteristic of the EWW WTP using SAW devices.

In order to solve the influence of the electrode width accuracy on the frequency characteristics of the EWW WTP using SAW devices, the function between the electrode widths and the −3 dB bandwidth is derived. That the −3 dB bandwidth varies as the electrode widths is known according to this function so that the exposure time and the etching are presented as the two key problems.

Solutions to these problems are achieved in this study. As long as there is accurate exposure time, the precision IDTs (i.e. the precision electrode widths) will be obtained. The accuracy of the exposure time for the EWW WTP using SAW devices is ±1 per cent. Because the dry etching is a type of etching technology in gas medium, it can etch nanometer lines, even more fine lines, so that the dry etching is used in EWW WTP using SAW devices.

Research highlights solving the influence of the electrode width accuracy on the frequency characteristic for the EWW WTP using SAW devices; deriving the function between the electrode widths and the −3 dB bandwidth (it is known from this function that the −3 dB bandwidth varies as the electrode widths); and presenting the exposure time and the etching as two key problems.