To accede to something is to agree to it: I accede to your request (I accept it); to concede something is to accept it grudgingly or reluctantly: I concede your superiority (I have to admit you are better). Spelling: remember the ending -cede.
The large star symbolizes the common programme of the Communist Party. The small stars represent the four economic classes: peasants, workers, petty bourgeoisie, and ‘patriotic capitalists’. Effective date: 1 October 1949.