The unemployment rate that exists when GNP is at its potential level is called the natural rate of unemployment. This is the rate consistent with workers changing jobs to find better ones, with consumers changing which goods they buy (which results in lost jobs in some sectors of the economy while other sectors expand), and with the search by employers for the best workers. How will the following events affect the natural rate of unemployment?

Event A: A growing fraction of the workforce becomes willing to quit when their job is unsatisfactory.
Event B: Employers, to maintain their competitiveness, become more willing to fire unproductive workers.
Event C: Consumers become more conservative, changing fashion and brands less often.
Event D: The government makes it expensive for employers to fire workers, making them go to court to prove the worker was unproductive.