To insure a proper and meaningful productivity assessment of DMUs with different production technologies, this article develops a difference-based profit metafrontier Luenberger productivity indicator. Adopting the proposed model, we empirically measure the profit inefficiency and examine the...

This research focuses on the diesel and diesel/oil mixed fuel combustion particles as the research object and analyzes the characteristics of the two kinds of fuel oil under different parameters. The characteristics of the combustion particulate matter in the DPF discharge of the two fuels...

The rapid development of the new generation of digital technology has injected new vitality into the digital transformation (DT) and continued growth of enterprises. This paper selects data from China's A-share listed companies from 2010 to 2019 and uses transaction cost theory to empirically...

Digital technology policies beyond the traditional urban-rural dichotomy have become critical in economic and industrial integration. Few empirical studies examine the specific impact pathway of digital economy policy on urbanisation, especially urbanisation driven by the digital economy. This...

In this paper, we carry out a comprehensive comparison of Gaussian generalized autoregressive conditional heteroskedasticity (GARCH) and autoregressive stochastic volatility (ARSV) models for volatility forecasting using the S&P 500 Index. In particular, we investigate their performance using...