Science about Science: Does Promoting More Postdocs Help?

Just a brief one today — I’ve been playing with parameter settings on the funding/careers model, particularly the impact of postdoc promotions.  In the base scenario, postdocs (referred to as PDRs here: Post-Doctoral Researchers) have about a 15% chance of getting promoted to a permanent position.  Here’s a sample run at the base settings (which includes the mentoring bonus added last time):


I’ve finally worked out how to fix the legends on these graphs!  Now let’s compare to a scenario in which 50% of postdocs get promoted:



Note that the mean productivity of grant-holders (the green line) is overall a bit higher than in the 15% case.  The productivity of promoted postdocs (the orange line) also tracks higher over time than in the 15% scenario.

Now let’s try 100% promotion chance:


Here the productivity of grant-holders and promoted PDRs is higher than in either the 50% case or the 15% case.

So does this mean that promoting more postdocs is our ticket to a more productive research community?  Well, in this virtual academia it seems to help — but still we’re seeing a lower level of productivity than in the postdoc-free scenario.  Not to mention that there’s still quite a bit of statistical work here to be done to determine how significant these effects are — but it’s an interesting result from today’s work and one I hope to address in the paper, assuming that the analysis bears it out.



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