visit WDI and you will find your required data

Thank you very much. It is a good tip.

I am especially looking for data about bilateral financial flows [FDI, FPI] between USA and China.

http://www.tradingeconomics.com/china/foreign-direct-investment

Maybe that could be of help

Thanks. That's good source, however I need some bilateral connections [direct and portfolio investments] between China and the USA.

China's outward FDI includes investments in Africa (2000-2005 and earlier) and Latin America ( 2006-2015) whence it used it to finance infrastructure, move factories to customer location and negotiate bilateral trade treaties driving down imports and maximise exports. 

In particular , US has such investments but more US China flows contain E-Visa emigration to set up businesses abroad (with ill gotten gains) and may not fit the traditional FDI mode as these investments have a minimum ceiling of $2-5 million and do not mirror institutional flows. Data banks from China are relatively opaque and OECD/world Bank data may only provide granularity.  To a certain extent data on real estate showing Chinese outward investment and stock market investments may also show data to the US. The data sources of each of the five flows mentioned may be independently sourced and collated.  Chinese Commerce and Finance ministries publish and report collated data and because of the connotation above it is not clear if that data includes E Visa and real estate investment flows. China ministries data would be the most reliable concerning china. 

br

amit

http://advantagesrus.wordpress.com

Thanks a lot.