I've posted these before, but I never get tired of posting them again:
A detailed, well-documented study of the engineering labour market in Canada, in Ontario in particular, based on solid census data and other similar sources:
The conclusions, in brief:
- only 31% of engineering grads in Canada work as engineers or engineering managers. It is the lowest match rate between education and work placement of any of the country's regulated professions
- the lines of the number of engineering grads (supply) and the number of engineering jobs (demand) have different slopes, and have diverged steadily over the past two decades
- a larger fraction (33%) of engineering grads work in jobs not requiring a university degree of any kind. That alone is clear evidence of a massive under-employment situation for engineering grads in Canada
- the 69% working outside engineering, earn on average 20% less than the 31% who do, so if they've left the profession voluntarily they've done so against their economic interests
- 92% of engineering 4th yr students surveyed indicated that they definitely or probably will pursue a career in engineering- obviously, many fresh grads are unable to find work and hence lose their chosen profession rather than choosing to abandon engineering
Another well documented study, indicating a systemic pattern of predictions of future STEM shortages that has happened since the 1940s: