Canada. Returns to Apprenticeship in Canada

The paper suggests that although the earnings gap between trades people and college graduates remains large, it would not be surprising to see the gap in rates of return close or even reverse once the earnings made by apprenticeships during their training is taken to account compared to the debt taken on by those who choose to pursue a college degree. It may well be that once all costs and benefits – training costs/wages and future earnings – are taken into consideration, that an apprenticeship accreditation is as financially attractive an option as the pursuit of a college degree.
http://www.clsrn.econ.ubc.ca/workingpapers/CLSRN%20Working%20Paper%20no.%2070%20-%20Boothby%20and%20Drewes.pdf