Take the following as truth: Businessmen who by day rule their companies can still despite a recession that has hit the late-night entertainment industry hard be seen in nightclubs being pampered by fawning hostesses, giggling over countless glasses of whisky or sake and singing karaoke versions of Frank Sinatra's  I Did It My Way,  only to collapse in a disheveled heap on the last train home.
Then the following statement: "Japanese businessmen have such stressful lives that they usually collapse on the train ride home." is true, false, or inconclusive?
Answer: Inconclusive