Describe three common problems that have often been faced by command economies. what kinds of issues have encouraged many countries to switch to mixed or market systems?

Common problems in a command economy include lack of the profit incentive, lack of competition and inefficiency. The profit motive lacks in a command economy hence there is no innovation. There is also inefficiency as the government determines what is produced as opposed to the market. May countries have switched to a mixed or market systems because the laws of demand and supply dictate what is produced leading to efficiency

martin luther king (1929-1968) was an activist for the african american rights, mr. king has a profile of a kind leader that built a tenacity, respect and full of hope future. he was an activist through civil disobedience and no violence pressure mechanisms. he tried to build a more egalitarian and fair society. his efforts carried a reivindication message of the civilian rights to every west corners. for that reason, he won the nobel prize in 1964.