How will the following affect labor force participation rates, labor supply, and unemployment? 

a. In an attempt to get a handle on increasing Social Security shortfalls, Congress and the president decide to raise the Social Security tax on individuals and to cut Social Security payments to retirees.
b. A national maternity leave program is enacted, requiring employers to provide 18 weeks of paid maternity leave for both parents of a newborn child.
c. The U.S. government increases restrictions on immigration into the United States.
d. The government enacts policy making it easier for more people to collect welfare benefits.
e. The government eliminates investment tax credits and therefore no longer subsidizes the purchase of new capital by firms.