R&D investment is enterprises¡¯ strategy based on the market demand on innovative products and its production capacity for them. Enlarging market demand would spur the enterprises¡¯ R&D input and the enhancement of technology state in production ability could have a complex effect on less...

In this study, on the basis of 3,200 km shallow stratigraphic section and side-scan sonar data of the coastal area of the Yellow River Delta, we delineated and interpreted a total of seven types of typical hazardous geologies, including the hazardous geology in the shallow strata (buried...

China’s speedy industrialization has undertaken mostly a crude path with extensive energy consumption and severe environmental damage. In face of the challenge of global warming and resource restrictions, it calls for urgent green transformation for the sustainable development of China’s...

Social accounting matrix (SAM) models have become standard methods to provide quantitative economic impact evaluation. SAM models and methods have a wide body of literature and dates back several decades. In recent years there has been a growing interest in using interregional and multiregional...

Default correlation is the key point for the pricing of multi-name credit derivatives. In this paper, we apply copulas to characterize the dependence structure of defaults, determine the joint default distribution, and give the price for a specific kind of multi-name credit derivative —...

In terms of stochastic orders, the purpose of this paper is to show how the random environment can affect the number of working components of a system with heterogeneous components sharing a common random environment. Applications to a class of semiparametric mixture models, stress-strength...

In this paper, a new method is presented to analyze the linear stability of the synchronized state in arbitrarily coupled complex dynamical systems with time delays. The coupling configurations are not restricted to the symmetric and irreducible connections or the non-negative off-diagonal...

We select gross national happiness (GNH), per capita GDP, the number of tourists received in rural areas, waste gas emission and other indicators that are closely related to harmonious economic development. Using the indicator data, we establish the multiple linear regression model that is in...