Black-odor water not only completely loses the function, but also seriously affects the environment landscape and human health. Aiming at the problems of high cost and low activity of catalysts for black-odor waters treatment by catalytic ozonation technology, this paper fabricated a stable...

In 2018, the price index of the Chinese A-share market experienced a turbulent loss, exposing many privately listed companies with share pledges to liquidation risk, which might then lead to systematic risks. The central Government encouraged local governments and financial institutions to set...

This paper examines the impact of the COVID-19 pandemic on the adjustments of dividends and share repurchases of publicly listed firms in the G-7 countries. Firms in the United Kingdom, Germany, France, and Italy experienced a widespread cut in dividends, while firms in the United States and...

In a “perfect” market, Miller and Modigliani's celebrated dividend irrelevance argument holds, whereby a dividend payment or omission is identical in impact to changes in a firm's share structure. Consequently, the dividend payment itself is irrelevant to valuation; what matters is the...

We examine the difference in cash holdings between high-tech and non-high-tech firms from 1974 to 2007. The average cash-to-assets ratio of non-high-tech firms remained stable throughout the period. In contrast, the average cash ratio of high-tech firms more than tripled from 1980 to 2007. This...

Recently, aqueous Zn/MnO2 batteries have attracted considerable attention due to their safety, low cost, and environmental friendliness. However, capacity decay caused by Mn dissolution greatly limits their further development. Herein, LiTFSI is employed as an electrolyte additive to inhibit...

In this paper, the existence and local exponential stability of the almost periodic solutions for recurrent neural networks with mixed delays have been investigated. By applying Dini derivative and introducing many real parameters, and estimating the upper bound of solutions of the system, a...

We present new models for simulating the steady and unsteady transport of pollutant. Then the simple central-upwind schemes based on central weighted essentially non-oscillatory reconstructions are proposed in this paper for computing the one- and two-dimensional steady and unsteady models....

Import competition has had an enormous impact on the US economy. This paper looks at whether such competition has increased the risk of US firms and is a factor that can partly explain the Fama–French disappearing dividends phenomenon. We show that firms facing more import competition do face...

This paper examines the effects of European Commission’s (EC) new leniency program on the EC’s capabilities in detecting and deterring cartels. As a supplementary analysis, the US leniency is studied. I discuss a dynamic model of cartel formation and dissolution to illustrate how...