I have put my paper "Measuring the association of inter-country technological gaps with economic growth" on-line here.
On the upside it uses better measures of technological gap than the gdp gap used elsewhere, so the effects observed are more convincingly attributed to technology gaps. It may be the first paper to do so.
On the downside, only fourteen works are mentioned in references, the use of foreign direct investment as instruments may be open to debate, a couple of innovative ideas from outside the main topic are discussed but it may be better to keep entirely mainstream in the non-core parts of the work, and the coefficients in some of the tables near the end change a great deal between specifications. There are reasons for all of these, and other papers could be criticised for the same reasons, but a perfect paper would not have them.