[rob74]

There is outsourcing of e.g. the engines, various hydraulic/electrical systems, electronics etc. etc. and then there is outsourcing bits of the fuselage, which is maybe not such a good idea. I mean, I understand how this came about - e.g. Spirit's location in Wichita was originally an independent airplane manufacturer (Stearman Aircraft, which was bought by United Aircraft and Transport Corp. and then became part of Boeing after UATC was broken up: https://en.wikipedia.org/wiki/Spirit_AeroSystems#History). Airbus is also made up of bits and pieces of various (former) European aircraft makers, so they also have assembly plants spread all over the continent, but these parts actually got more tightly integrated over the years, while Boeing took the opposite path.