(Bloomberg) -- At a time industrialized countries around the world are confronting declining birth rates and aging workforces, Canada is at the forefront of betting on immigration to stave off economic decline.Most Read from BloombergFlorida Is Losing Its Affordability Edge After Drawing a Flood of New ArrivalsGoodbye, Body Mass Index. You Won’t Be Missed.Tucker Carlson's Fox Defense Crumbled When He Took MillionsBlinken Has ‘Candid’ Talks With China’s Qin on Trip to Mend TiesA country about as