@article{Christofides2010, author = {Christofides, L.N. and Swidinsky, R.}, title= {The economic returns to the knowledge and use of a second official language: English in Quebec and French in the rest-of-Canada}, year = {2010}, doi = {10.3138/cpp.36.2.137}, volume = {36}, number = {2}, pages = {137--158}, }