Why is the construction industry so far behind other industries when it comes to productivity gains and leveraging technology to do it. Here is a recent article giving some reasons why and some options to help fix it. 

I'm especially interested in the suggested role government has in helping encourage the industry to improve.
e.g. in Britain, France and Singapore they now require bidders for public-sector contracts to use a process called “building information modelling”, a type of digitised construction plan, in the hope that once they have invested in the relevant software, it will be used in private-sector projects, too.