Trade in information technologies and changes in the demand for occupations
利用世界投入产出数据库等数据，研究发现2001-2014年间信息技术贸易显著增长，其中中国是主要供应国；来自中国的IT进口降低了欧洲国家的IT价格，进而增加了高工资职业需求、减少了中等工资职业需求，约25%的职业需求变化可归因于对华贸易。
I use data from the World Input-Output Database and show that trade in information technologies (IT) has a significant contribution to the growth in foreign intermediate goods in the 2001–2014 period. China has strongly contributed to the rise in trade in IT and has become one of the major foreign suppliers of IT. I merge these data with the EU KLEMS database and EU Labour Force Survey and obtain a dataset of 12 European countries and 2001–2007 period. I show that IT imports from China are associated with lower IT prices in European countries. The fall in IT prices has increased the demand for high wage occupations and reduced the demand for medium wage occupations. Nearly 25% of the variation in the demand for occupations can be attributed to the trade with China.