This paper contributes to the literature by identifying the causal effect of firm investment on exporting behavior. The identification hinges on regional variations in the 2004 value-added tax pilot reform in China, which generated positive investment shocks. The instrumental variable estimation...

Triboelectric nanogenerators (TENG) have emerged as suitable devices that are suitable to harvest widely abundant and renewable blue energy. However, a major drawback in related deployments include the reliability of the system when operating in variable atmospheric conditions. To address this...

The design and performance prediction of efficient anticorrosion materials is a work full of value, novelty and challenges. In this work, the magnetic transition metal Mn was used as an electronic structure modifier, especially the double exchange effect of Mn3+ and Mn4+ mediated by the co-spin...

In this paper, we study a regime-switching risk model with a threshold dividend strategy, in which the rate for the Poisson claim arrivals and the distribution of the claim amounts are driven by an underlying (external) Markov jump process. The purpose of this paper is to study the unified...

We estimate that a one-standard-deviation increase in a firm's import penetration ratio raises its likelihood of having engaged in an incremental innovation by 4.48% using a random-sampled firm survey in China. The estimate is close to those in Gorodnichenko, Svejnar and Terrell (2010). A number...

In this paper, we study the generalized expected discounted penalty (Gerber–Shiu) function in a risk process with credit and debit interests. We define Tu,z to be the first time that the surplus process drops below a certain level z from the initial surplus u(z). The time of ruin and the time...

Spontaneous combustion of coal is a natural hazard during mining. In China, more than 60 % of cases of spontaneous combustion of coal in China result from coal pillars in goafs. In this paper, the plastic deformation of a coal pillar was simulated and, based on the simulated vertical and...