Have not read any books on "The Miracle" just a lot of scholarly stuff. The Chilean Central Bank publishes a lot of stuff-- they've done independently or have written university grants for--on this subject matter. They recently started an english translation page that includes their articles. Have a look at at http://www.bcentral.cl/eng/studies/index.htm .
I'll take a look at my saved documents on Lexis Nexis for some good stuff iv'e read over the years that's not too technical for you.