The 'need more PhD graduates' needs to be contextualised; and I feel that none of the news reports trully delve into were the need stems from. But since the overall thesis is, we need PhD graduates to grow the economy, it can be assumed that PhD graduates are required by:
- Industry, to enable it to develop competetive products and services
- Academia, to enable a higher quality of education and research; feeding industry with higher quality university graduates, and
- To create new industries and services, through start-ups etc
In my graduating class of 2007, there were 3 PhD graduates (in December at least, and for Computer Science only). Of us 3 - I am the only one who remained in South Africa; and all of us work in industry. Most South African companies in South Africa do not really value PhD graduates - it is clearly seen in the recruitment drives and for that matter in industry itself. This is also seen by the relative lack of R&D institutes in South Africa, that are fronted by industry. In fact, other than Sasol, I do not really know of any other South African company that has a big R&D setup in South Africa. Without viable R&D labs, are South African companies really interested in employing PhD graduates for their skills? And without a need for PhD graduates in industry, the pool of students wanting to do a PhD drops due to a lack viable job opportunities.
I agree that deploying PhD graduates within South African universities would have a significant impact on a number of factors - and not just acamedics. However, for this to successfully work out, South African universities need strong post-doctoral programs; ideally on an international exchange basis - that can be used to hone in the research skills and widen the research skill base.
Nurturing start-ups and protecting research outputs are things that South African universities and research institutes just do not seem to be good at. From my experiences at UCT, there was no drive for patents or setting up startups from the research outputs. This is a vital cog in the research process that can trully contribute to the economy. If I compare my experience at UCT with my internships at German research institutes in 2007, my actualy research output was actually higher for the time: I had one paper at ACM DRM 2008, one patent application and contributed towards 2 OMA standards for the mobile industry; all in 3 months at one research institute.
Tied into the last point, I think there is also a need to have focused research programs instead of the ad-hoc research that happens in many SA universities. It is hypocritical on my part to say this - when my own research was ad-hoc and very much removed from most other research at UCT - but if I compare my PhD experience in terms of the actual research project; to my peers in my research field around the world - formal research programs where a team of students, post-docs and academic staff work on the same research topic has a tremendous impact on the quality of the work produced. I think the outputs discussed above, with regards to my internship can also be similarly attributed - there my team was 5 persons (including me) in my specific stream and a total of 10 persons in the research program as a whole.
So yes, I agree that more PhD graduates will have an impact on economic growth - but I do not think that can happen without the supporting environment from both universities and industry. Other factors such as primary and secondary education are also important - but for PhD graduates to have meaningful impact on the economy there needs to be mechanisms for them to contribute meaningfully.