题目
A saver deposits the following amounts in an account paying a stated annual rate of 4%, compounded semiannually:「huixue_img/importSubject/1564548694982922240.png」At the end of Year 4, the value of the account is closest to:
选项
A.$30,432
B.$30,447
C.$31,677
答案
B
解析
B is correct. To solve for the future value of unequal cash flows, compute the future value of each payment as of Year 4 at the semiannual rate of 2%, and then sum the individual future values, as follows:「huixue_img/importSubject/1564548695146500096.png」 第一步:求EAR: BAII Plus计算器,2ND+2页面下,2ND+CE/C清楚历史记录,NOM=4,C/Y=2,CPT EFF=4.04 第二步:分别求4笔现金流: PV=-4,000,N=3,I/Y=4.04,PMT=0,CPT FV=4,504.65 PV=-8,000,N=2,I/Y=4.04,PMT=0,CPT FV=8,659.46 PV=-7,000,N=1,I/Y=4.04,PMT=0,CPT FV=7,282.80 PV=-10,000,N=0,I/Y=4.04,PMT=0,CPT FV=10,000.00 第三步:将4个FV加总得到30,446.91。 视频和对比,补充: 两种方式(半年的4%/2和年的EAR)都可以,原因是“PMT=0”,现金流为0,N和I/Y只要匹配,按照“年”还是“半年”为单位计算无所谓,结果是相同的。求第一个时间点4000的FV:PV=-4,000,N=3,I/Y=4.04,PMT=0,CPT FV=4,504.65PV=-4,000,N=6,I/Y=4/2=2,PMT=0,CPT FV=4,504.65理解“匹配”:使用正确的利率需要用到一个“匹配”的思想,意味着现金流发生的时间间隔,对应着利率期限,例如按照每一个月发生的CF,我们应该用月利率对CF折现。