尽管在理论上投资者应该寻求资产组合的国际多样化，但是数据表明，美国投资者的财富中只有一小部分

分散在国际资产中。你如何解释这个事实？你认为新近出现的国际共同基金将对此现象有影响吗？ Although in theory investors should seek international diversification in their porffolios．the dataindicate that U．S．investors have only a small fraction of their wealth allocated to international assets．How can you account for this fact？Do you expect the recent appearance 0f international mutual funds to affect this？