Dear Si / Madam,

Greetings...!

Herewith I mentioned some imp links which may be helpful to you.

https://link.springer.com/article/10.1007/s11192-010-0285-6

http://dl.acm.org/citation.cfm?id=1960886

www.insme.org

http://hdr.undp.org/en/content/measuring-technology-achievement-nations-and-capacity-participate-network-age

Thanks a lot Chetas ! Very useful answer.

Found it useful too. Thank you! Regarding Medium-and high-tech exports indicator, I miss data ( time series) for medium technology, any hint?

I have found the data on the World Development Indicators data bank...