The self-organization of the polymer in solar cells based on regioregular poly(3-hexylthiophene)(RR-P3HT):[6, 6]-phenyl C61-butyric acid methyl ester is studied systematically as a function of the room temperature (RT) (varied from 300 K to 290 K). Optimal self-organized structures within the...

We provide firm level empirical evidence that the presence of foreign direct investment (FDI) has positively affected the institutional quality of the host regions in China. Specifically, Chinese domestic firms located in regions with a higher level of FDI tend to enjoy a lower level of tax and...

In the past, foreign borrowing by developing countries was comprised almost entirely of government borrowing. Recently, private firms and individuals in developing countries borrow substantially from foreign lenders. It is not clear whether the observed increase in private sector borrowing leads...

What are the macroeconomic effects of tax adjustments in response to large public debt shocks in highly integrated economies? The answer from standard closed-economy models is deceptive, because they underestimate the elasticity of capital tax revenues and ignore cross-country spillovers of tax...

We estimate productivities at the sector level for 72 countries and 5 decades, and examine how they evolve over time in both developed and developing countries. In both country groups, comparative advantage has become weaker: productivity grew systematically faster in sectors that were initially...

With the advance of urbanization process and rapid growth of urban population, the construction land scale in Dianchi Lake basin increases at a sharp speed. Due to lack of reasonable scale control and space optimization, many areas have the problem of blind growth in construction land. On the...

Personalized recommendation is an effective method for fighting “information overload”. However, its performance is often limited by several factors, such as sparsity and cold-start. Some researchers utilize user-created tags of social tagging system to depict user preferences for...

Since the tax-sharing reform in 1994, the Chinese fiscal system has exhibited a marked vertical fiscal imbalance—a mismatch between expenditure and revenue assignments—at the local levels, which may cause the common-pool problem in local governments' behavior. Using a large fiscal dataset at...