Which event would NOT shift the labour supply curve

Question

Quizplus · Accepted Answer

Increases in worker productivity would not shift the labour supply curve, as productivity affects the quantity of labour supplied at each wage level, not the willingness or ability of individuals to work. A change in the number of women willing to work, immigration of workers, and changing attitudes towards work would all cause a shift in the labour supply curve, as they would affect the number of individuals willing and able to work at various wage levels.

Which Event Would NOT Shift the Labour Supply Curve