20世纪80年代初，尽管每年有147%－的平均通货膨胀率，但是巴西政府得到的铸币税只占产出的10%，而塞拉利昂以低

20世纪80年代初，尽管每年有147%-的平均通货膨胀率，但是巴西政府得到的铸币税只占产出的10%，而塞拉利昂以低于巴西1/3的通货膨胀率就得到了占产出2.4%的铸币税。你认为可以用金融结构不同来解释这种差异吗？(提示：塞拉利昂通货与名义产出之比平均为7.7%;巴西平均只有1.4%。)

In the early 1980s，Brazil's government，through an average inflation rate of 147 percent per year，got only 1.0 percent of output as seigniorage，while Sierra Leone's government got 2.4 percent through an inflation rate less than a third as high.Can you think of differences in financial structure that might partially explain this contrast？ (Hint：In Sierra Leone the ratio of currency to nominal output averaged 7.7 percent;in Brazil it averaged only 1.4 percent.)