Social media platforms often simultaneously distribute content through different newsfeed channels, most commonly, social networks, algorithmic recommendations and trending content. Prior literature has investigated each channel’s impact on user-content engagement. However, little is known...

This paper employs a semi-parametric varying coefficient system approach to investigating the impact of environmental policy stringency on a nation's productivity growth using data for a panel of OECD countries over a period of two decades. A new cross-country proxy of environmental policy...

The diamond Schottky theory needs to be further improved before exertising its full advantages, especially in terms of the physical properties of the diamond surface and the interface between metals and diamond. In our previous work, we experimentally verified that the oxygen terminal with a...

Although peroxymonosulfate (PMS) coupling with ultrasonic piezo-catalysis (PE) or electrolysis (E) exhibited synergy of organics degradation by generating more reactive oxidative species (ROS), the relatively high energy consumption restricted their application. Hydro-energy, as a clean energy...

Using the standard Ricardian model, we developed the numerical result of Samuelson (2004) with general conditions. Specifically, our analysis shows that, the cumulative technological progress of the South will undermine the welfare of the North even before the relative productivities of the two...

The stochastic frontier model used for continuous dependent variables is extended to accommodate output measured as a discrete ordinal outcome variable. Conditional on the inefficiency error, the assumptions of the ordered probit model are adopted for the log of output. Bayesian estimation...