41. The inconvenience of barter later led to the use of some objects as a medium of exchange . 42. "Not worth a Continental " was scarcely the epithet one would wish on a medium of exchange . 43. Gold dust was the medium of exchange . 44. By the early Iron Age contemporary civilizations developed money as a medium of exchange for increasingly complex transactions. 45. A coin or paper currency note has value because people accept it as a symbolic medium of exchange . 46. At first, Confederate currency was accepted throughout the South as a medium of exchange with high purchasing power. 47. In many places, including large parts of the former Soviet Union, greenbacks are an accepted day-to-day medium of exchange . 48. Cash usage is the preferred medium of exchange in illegal transactions since cash usage does not leave a footprint. 49. That " can make it difficult for the Internet to remain a free and interchangeable medium of exchange ." 50. A third fundamental contribution of OLG models is that they justify existence of money as a medium of exchange .
