Specialist in macroeconomic, public finance, international trade, international finance, as well as in Canada-US and Quebec-Ottawa relations.

His fields of research are language policies and intergovernmental financial relations in Canada and around the world (New Zealand and Europe; twelve countries from Bhutan to Tunisia, including the Democratic Republic of the Congo, Morocco and Pakistan).

In public economics, he is interested in federalism (distribution of powers, funding mechanisms) and taxation (costs of collection, harmonization, local taxation, state-owned corporations). In language economics, he deals with income gaps and the impact of language policies, while in human resources, he is interested in social policies from a federal point of view and in the return on investment of education.