Government regulations

1​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​. Can you think of some government regulations and/or trends in HRM (Human Resource Management) that may have contributed to the decreasing or increasing appeal of union membership, especially in the private sector?​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​2. What are some factors that can explain the significantly higher union membership rate in the public-sector? Please put the question above the answer as a heading for the questions being answered. Thank yo​‌‍‍‍‌‍‍‌‍‌‌‍‍‍‌‍‌‌‌‍​u