In the U.S. market economy, the government performs the following prominent roles, except:

Natural resource cartels such as OPEC are inherently unstable because their members operate with excess capacity and have an incentive to cheat on their output quotas

Indicate whether the statement is true or false

One problem with changing the required reserve ratio is that

a. the policy must be kept secret from the public in order to have any effect b. the results are unpredictable c. the changes are usually not effective d. banks will often ignore the changes e. it takes too much time for these changes to affect the economy