China's carbon dioxide (CO2) emissions have an important impact on global climate change. However, a systematical analysis, especially from the reform and opening up, is still insufficient. Thus, the emissions' decomposition since 1980 was completed by an extended logarithmic mean Divisia index...

The freemium pricing model has become mainstream in the software industry. A large user base can induce positive network effects while expanding security risks associated with unpatched users. This study explores a two-stage decision problem faced by software vendors that involves a freemium...

This report presents refined options for an EU Pollinator Monitoring Scheme (EU PoMS), based on the work of a technical expert group comprising 26 international experts from 12 countries, with members being representatives of universities, research institutes and NGOs. The work presented here...

On the basis of a theoretical analysis, this paper develops an indicator framework for measuring informatization level and estimates the informatization levels of various regions in China spanning 2006 to 2019; Utilizing the DEA-Malmquist index approach, the paper estimates the TFP of various...