The signs of an unprecedented labor shortage in Canada are glaring, with 'help wanted' signs and job postings in storefronts across the country. Studies by the government and industry associations have found that up to two-thirds of Canadian businesses are facing worker shortages, and claim the deficit is limiting their growth. "There's less revenue and less opportunity to receive customers without an appointment," says Montreal hairdresser Josiane Boulet. IMAGES AND SOUNDBITES