This is germaine to US since our beloved airline has (BoeingBoy, please correct me if wrong) the greatest percentage of outsourced RJ flying.
http://www.northjersey.com/recreation/143791166_Worldwide_bicycling_tour_keeps_rolling_along.html
Prior to commercial airline deregulation in 1978, airlines typically flew twin-engine, piston-powered interstate aircraft, as well as four-engine intercontinental jet airliners. The traveling public living in smaller cities had limited choices, and would often have to fly multiple carriers when traveling to foreign destinations....
IMHO they have been a terrible thing, especially for mainline employees, regardless of carrier.
http://www.northjersey.com/recreation/143791166_Worldwide_bicycling_tour_keeps_rolling_along.html
Prior to commercial airline deregulation in 1978, airlines typically flew twin-engine, piston-powered interstate aircraft, as well as four-engine intercontinental jet airliners. The traveling public living in smaller cities had limited choices, and would often have to fly multiple carriers when traveling to foreign destinations....
IMHO they have been a terrible thing, especially for mainline employees, regardless of carrier.