Can You Just Tell Us About the Origins of This Paper?

This is a co otherd paper with a colleage at the world bank and then a colleague from a rmin university. The data set to this data set is the tax survey data set that is run annually in china. It also includes the services sector and agriculture as well, so which make much more representative. Now, it does over sample large firms. So if you look at o value added to the firms involved, it's about 70 per cent of output.