Which of the following scenarios serves as the best example of redundancy trading? a. two tribes exchanging corn for corn. b. two tribes exchanging buffalo hide for corn. c. two tribes adopting certain tribe members into each other’s tribes. d. two tribes giving gifts of corn in exchange for goods.

the answer is a) high entry costs

answer is b.

  it is always the best policy to have good communication and good relations between individuals and, specially, between leaders of the countries. for this purpose, among others, there is a common place, the united nations, where the representants can present his and learn about the other country's policies.

answer:   the name of this act is known as the:

    " american recovery and reinvestment act of 2009 " .