This volume focuses on the issues involved in securing an internal common market within Canada.

The first part addresses some underlying analytical issues. Why do barriers exist? Are federations likely to be characterized by more internal barriers than are unitary states?

Part Two documents many of the impediments at both the provincial and federal level. An attempt is then made to quantify the costs of these impediments.

Part Three presents a comparison of various types of barriers across different federalisms (i.e., labour mobility, tax harmonization, regional development strategies).

The final part focuses on constitutional and other avenues that may be open to implement policies designed to increase harmonization of policies. The conclusion is devoted to establishing an agenda for future research.

The papers included here were originally presented at a conference sponsored jointly by the Ontario Economic Council and the Canada-U.S. Law Institute.