Purchasing power parity was developed by Swedish economist Karl Cassel.
Purchasing power parity was developed by Swedish economist Karl Cassel.
购买力平价是由瑞典经济学家卡尔．卡瑟尔所研究提出。
Purchasing power parity was developed by Swedish economist Karl Cassel.
购买力平价是由瑞典经济学家卡尔．卡瑟尔所研究提出。