The impact of hydraulic engineering works and human activities on hydrology has become a hot issue along with the economy and social development. The water cycle model of the upper reaches of the Yangtze River (URYR) is established based on the improved Soil and Water Assessment Tool (SWAT)...

Abstract Vertical specialization is a measure of the import content of exports. Given the widely recognized importance of trade in tasks and global production networks, vertical specialization has recently gained the attention of international trade researchers and policy makers. In this note,...

Abstract With the steady growth of global value chains (GVCs), each country’s trade now has a more complex relationship with the international division of labor. We decompose the employment effects of a country’s trade into five components, specifically the labour content (1) in exports, (2)...

We conduct an input--output analysis of China's employment changes due to changes in trade structure on a sectoral level. We find that between 2002 and 2007 China generated about 71 million jobs due to trade expansion. We also estimate the additional amount of trade that would be needed if China...

Using a classical political economy approach we find aggregate regularities in the patterns of technical change followed by high income and developing countries (mostly from Latin America and Sub Saharan Africa) respectively. Such regularities allow us to propose an alternative definition of...

Tankov (2011) improves the Fréchet bounds for a bivariate copula when its values on a compact subset of the unit square are given. He shows that the best possible bounds are quasi-copulas and gives a sufficient condition for these bounds to be copulas. In this note we give weaker sufficient...

NiTi alloy exhibits superior superelastic properties but its wide application is limited by its poor workability. In this study, Ni-rich NiTi wire was used as the feedstock and a wall-shaped NiTi component with height of 130mm was deposited on Ti substrate by cold metal transfer (CMT) based wire...