Lots of points: economics: which of the following events concerning labor unions occurred in the 1990s? a. the first minimum wage law and maximum work week laws were established. b. the immigration act reduced the number of immigrants competing with americans for jobs. c. us government took control of several unions; the goals included protecting union funds from corrupt uses and guaranteeing the fair election of union officers. d. federal employees were given the right to organize into unions, but not to strike.