Business owners gather at an elegant Montreal event center to celebrate the 20th anniversary of a large-scale economic partnership. The former chief of Quebec’s largest bank is the guest of honor. Sidewalks bustle with people walking in and out of homes, offices, bank, pharmacy, workout studio and coffee shop at Montreal’s Technopole Angus— a development that already sports 56 businesses with 2500 employees and will eventually encompass a million-square-feet of real estate. Morning-shift workers unload