Automaticon 2012 AB Industry palletizating station

ABIndustry is a POLISH integrating company introducing automation solutions, robotics and eletrical installations. Automaticon 2007, Warsaw

What caused job losses and economic decline in American industry?

I’m curious, is specifically about the decline in the 1980s, but do not explain. I know that global competition was a factor, as well as increased automation, but it seems that these two can not be the only reason. Is America so much raw materials and goods, as it produces are used?