根据短文在空白处填上适当的单词，该单词的第一个字母已经给出。

　　The interest paid by stocks rises and falls w 46 the economy. During

　　times when the cost of living is rapidly becoming greater, s 47 are usually

　　a better investment than bonds. This is b 48 they pay a much higher

　　interest rate than d 49 bonds under these conditions. When economic

　　conditions are not good, h 50 bonds are generally a better investment. This is

　　because the interest paid b 51 bonds in fixed¹ at a certain rate when they are

　　issued the does not c 52 . Because of the relationship between the economy

　　a 53 the performance of stocks and bonds, when people are not sure a 54

　　economic conditions, they may hesitate before buying anything. They prefer to

　　wait a 55 see what happens to the prices and rates of interest of stocks

　　and bonds before investing their money