China experienced a sharp increase in wage inequality between unskilled and skilled workers in the late 1990s. Using a sample of 1,500 firms in five Chinese cities with available data for 1998 and 2000, we investigate the role of technology and foreign trade in determining China’s wage inequality. We find evidence that conditional on the technology deployed, trade reduces wage inequality in exp...

in the present study, saffron was dried using a heat pump-assisted hybrid photovoltaic-thermal solar dryer. the effect of different drying air temperatures at three levels (40, 50, and 60oc) and two different modes of the dryer (with and without heat pump system) were investigated on drying behaviour of saffron. after collecting the pertinent data, eleven drying models were used to describe dry...

The concept of socio-ecological transitions is used to analyse the quantitative importance of physical imports and exports for the Habsburg Empire and the United Kingdom in the 19th and early 20th centuries. For the Habsburg Empire, a new dataset of foreign trade and social metabolism is presented. For the United Kingdom, the analysis relies on previously published data. Foreign trade volumes i...