40 hours business can compete 60-70 hours business?

I want to open a business but in my country the busineses work for 60 hours minimum weekly but I want to open a business that work for employees 40 hours a week 5 day?
Can I compete with other businesses?
Sector is construction. I want to be a contractor. I need your opinions... Please help
40 hours business can compete 60-70 hours business?
Post Opinion