Let's ask some different but related questions here. Suppose that someone were to graduate with a PhD in the sciences in 2013. For simplicity's sake, we will consider 3 areas: (1) physics (for the moment, I'm not distinguishing between experimental or theoretical physics), (2) chemistry, and (3) mathematics (excluding statistics). Question 1: What is the probability that individuals who graduated in fields (1)-(3) would end up being in a tenure-track position immediately upon graduation? Same probability after 1 postdoc? Question 2: What is the probability that individuals who graduated in fields (1)-(3) would end up not finding any employment or only find employment in areas not requiring higher education (i.e. low-skill work like retail, waiting tables, common labour) for 1-2 years upon receiving their PhD?