Eliminating trade barriers would decrease prices and raise household incomes.
Lower trade barriers allow businesses to shift more easily toward areas where goods and services can be produced more cheaply.
Provincial monopolies, supply management and regulatory restrictions hinder the passage of goods between provinces.
Duplicated regulation among provinces can impose needless costs on people and businesses.
As vacationers travel around Canada this summer, here is a question to ponder for those who sip fine Canadian wine: why do so many provincial politicians oppose free trade in wine among the provinces?
Before last year, it was illegal for Canadian wineries to ship direct to consumers in another province. That was unlike say, how a Quebec dairy producer can sell cheese to a grocery store chain based anywhere in Canada.