Question 17 "Depending upon the preferences of the worker, the demand curve for labour can be backward bending." This statement is Not yet Select one: Marked cut of a. true 1.00 F Flag b false question C. uncertain Question 18 If a union bargains for higher wages; but not about the level of employment, it can be shown that Not yet Select one: Marked out of 100 a. the results will be Pareto optimal, b. a Pareto improvement is possible. question O there are no possible gains from trade