﻿<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/" xmlns:wfw="http://wellformedweb.org/CommentAPI/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/"><channel><title>IT博客-乐在其中-文章分类-业务知识</title><link>http://www.cnitblog.com/huchangjun1980/category/7097.html</link><description /><language>zh-cn</language><lastBuildDate>Thu, 29 Sep 2011 23:54:58 GMT</lastBuildDate><pubDate>Thu, 29 Sep 2011 23:54:58 GMT</pubDate><ttl>60</ttl><item><title>购房与租房的决策</title><link>http://www.cnitblog.com/huchangjun1980/articles/52019.html</link><dc:creator>小胡子</dc:creator><author>小胡子</author><pubDate>Fri, 28 Nov 2008 03:56:00 GMT</pubDate><guid>http://www.cnitblog.com/huchangjun1980/articles/52019.html</guid><wfw:comment>http://www.cnitblog.com/huchangjun1980/comments/52019.html</wfw:comment><comments>http://www.cnitblog.com/huchangjun1980/articles/52019.html#Feedback</comments><slash:comments>0</slash:comments><wfw:commentRss>http://www.cnitblog.com/huchangjun1980/comments/commentRss/52019.html</wfw:commentRss><trackback:ping>http://www.cnitblog.com/huchangjun1980/services/trackbacks/52019.html</trackback:ping><description><![CDATA[&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;购房不像子与教育与退休一样具有不可替代性，对买不起房子的人而言，租房也是不错的选择。购房与租房的居住效用相近，差别在于购房者有产权，因而有使用期间的自主权，而租房者又是会面临房东要求搬家的窘境。&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;购房与租房何者更加划算，牵涉到拥有自己房产的心理效用与对未来房价的预期。因购房者可期待房地产增值的利益，而租房者只能期待房东不要随时调涨房租。因此用一个标的物可租可售时，不同的人可能会在租购间做不同的选择。购房与租房应该如何选择，我们可以用年成本法与净现值法来计算。<br>&nbsp;&nbsp;&nbsp;&nbsp;（一）年成本法<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;购房者的使用成本是首付款的占用造成的机会成本，以及房屋贷款利息，而租房者的使用成本是房租。其决策考虑因素举例试算如下：
<fieldset style="BACKGROUND-COLOR: #fef78e"><legend>案例1</legend>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;郭先生看上了一间80平米位于北京朝阳区的一处房产，房产开发商可租可售。若是租的话，房租每月3000元，押金3个月。购的话总价80万，首富30万，可获得50万，利率6%的房屋抵押贷款。郭先生租房与购房的成本分析如下（假设押金与首付款的机会成本是一年期的存款利率3%）
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong>分析</strong><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;租房年成本：3000元*12+3000元*3*3%=36270元<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;购房年成本：30万元*3%+50万元*6%=39000元<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 看起来租房比购房年成本低2730元，或每月227.5元，租房比较划算。不过还要考虑一下因素：<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;（1）房租是否会每年调整。购房后成本固定，而且租与购的月成本只差227.5元，只有月租的7.6%，因此只要未来房租的调整幅度超过7.6%，则购房比租房划算。<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;（2）房价升值潜力。若房价未来看涨，那么即使目前算起来购房的年居住成本稍高，未来出售房屋的资本利得也足以弥补居住期间的成本差异。以上例而言，租房年居住成本率=3.6万/80万=4.5%，购房年居住成本率=3.9万元/80万=4.875%，差距只有0.375%。若计划住5年，0.375%*5=1.875%。只要房价可能在5年内涨2%以上，购房仍然比较划算。如果房价不断探底，大家都预期房价会进一步下跌而宁可租房不愿买房，则租房居住成本高于购房的情况也有可能发生。因此租房与购房究竟何者划算，<strong style="COLOR: red">当事人对未来房价涨跌的主观判断仍是决定性的因素</strong>。<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;（3）利率的高低。利率越低，购房的年成本越低，购房就会越划算。如果预期房贷利率进一步降低，而房租保持不变，则租房与购房的居住成本的差异会逐渐降低，可以考虑通过购房满足居住的需求。</p>
</fieldset>&nbsp;&nbsp;&nbsp;&nbsp;（二）净现值法<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;净现值法是考虑在一个固定的居住期间内，将租房与购房的现金流量还原为现值，比较两者的现值，现值越高越划算。<br>
<fieldset style="BACKGROUND-COLOR: #fff9a0"><legend>案例2</legend>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;台湾的王先生，看中一处房产，若是租的话，房租每月3万，押金3个月。购的话总价800万，首付300万，可获得500万，利率6%期限为20年的房屋抵押贷款。假设王先生确定要在该处住满5年，房租每年调升1.2万元，以存款利率3%为机会成本的计算依据。<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<strong>分析<br></strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;贷款利率6%，20年房贷每年本利平均摊还额=贷款总额500万元/标准年金现值系数(n=20，i=6%)=500万元/11.47=435920，依据现值法分析如下：<br><strong>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1.房租净现金流量现值</strong><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=90000/（1.03）<sup>5</sup>-90000-360000/(1.03)-372000/(1.03)<sup>2</sup>-384000/(1.03)<sup>3</sup>-396000/(1.03)<sup>4</sup>-408000/(1.03)<sup>5</sup>=-1767725<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;只有押金是5年后可回收的部分，其他都属现金支出，因此净流出现值约177万元。<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2.购房净现金流量现值<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;=5年后售房净所得/（1.03）<sup>5</sup>-3000000-435920/(1.03)-435920/(1.03)<sup>2</sup>-435920/(1.03)<sup>3</sup>-435920/(1.03)<sup>4</sup>-435920/(1.03)<sup>5</sup>=5年后售房净所得/（1.03）<sup>5</sup>-4996385<br></fieldset><br><br>
<img src ="http://www.cnitblog.com/huchangjun1980/aggbug/52019.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cnitblog.com/huchangjun1980/" target="_blank">小胡子</a> 2008-11-28 11:56 <a href="http://www.cnitblog.com/huchangjun1980/articles/52019.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>理财试算算法整理</title><link>http://www.cnitblog.com/huchangjun1980/articles/42667.html</link><dc:creator>小胡子</dc:creator><author>小胡子</author><pubDate>Wed, 23 Apr 2008 13:57:00 GMT</pubDate><guid>http://www.cnitblog.com/huchangjun1980/articles/42667.html</guid><description><![CDATA[<p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-INDENT: 15.5pt; mso-char-indent-count: 1.47; tab-stops: list 26.4pt"><strong style="mso-bidi-font-weight: normal"><span style="FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: 华文中宋">术语简述：<span lang=EN-US><o:p></o:p></span></span></strong></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-INDENT: 15.45pt; mso-char-indent-count: 1.47; tab-stops: list 26.4pt"><span style="FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-size: 10.5pt; mso-hansi-font-family: 华文中宋">理财规划，是指针对个人在人生发展的不同时期，依据其收入、支出状况的变化，制定个人财务管理的具体方案，实现人生各个阶段的目标和理想。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-INDENT: 15.45pt; mso-char-indent-count: 1.47; tab-stops: list 26.4pt"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">理财顾问，就是指了解客户的投资需求，帮助客户做投资理财的建议，推荐客户购买适合的投资产品，从而帮助客户达到期望的目标。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-INDENT: 15.5pt; mso-char-indent-count: 1.47; tab-stops: list 26.4pt"><strong style="mso-bidi-font-weight: normal"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">算法介绍：<br></span></strong><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">&nbsp;&nbsp; 理财规划作为金融分析的一种工具，必须考虑货币的时间价值。货币具有时间价值是因为使用货币按照某种利率进行投资的机会是有价值的。考虑货币的价值主要有两种形式：终值和现值。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 33.65pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-family: 仿宋_GB2312"><span style="mso-list: Ignore">1.<span style="FONT: 7pt 'Times New Roman'">&nbsp; </span></span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">终值（<span lang=EN-US>Future Value</span>）<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 33.65pt"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">终值是指今天的一笔投资在未来某个时点上的价值。采用复利来计算。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 33.65pt"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">终值的公式为：<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 33.65pt; TEXT-INDENT: 20.25pt"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">Fv</span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">＝<span lang=EN-US>P<sub>0</sub></span>（<span lang=EN-US>1</span>＋<span lang=EN-US>r</span>）<sup><span lang=EN-US>n<o:p></o:p></span></sup></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.35pt; TEXT-INDENT: -15.35pt; mso-char-indent-count: -1.46"><sup><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></sup><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">式中，<span lang=EN-US>n</span>为时期数；<span lang=EN-US>FV</span>为从现在开始<span lang=EN-US>n</span>个时期的未来价值，即终值；<span lang=EN-US>P<sub>0</sub></span>为初始的本金；<span lang=EN-US>r</span>为每个时期的利率；代数表达式（<span lang=EN-US>1</span>＋<span lang=EN-US>r</span>）<sup><span lang=EN-US>n</span></sup>表示今天投入一个单位货币，按照复合利率<span lang=EN-US>r</span>和<span lang=EN-US>n</span>个时期后的价值。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">例如：目前有<span lang=EN-US>10,000</span>元购买<span lang=EN-US>XX</span>基金，基金预期年报酬率为<span lang=EN-US>18</span>％，问<span lang=EN-US>2</span>年后是多少钱？<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span>FV</span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">＝<span lang=EN-US>10000</span>（<span lang=EN-US>1</span>＋<span lang=EN-US>18%</span>）<sup><span lang=EN-US>2<o:p></o:p></span></sup></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm"><sup><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span></sup><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">＝<span lang=EN-US>13924</span>（元）<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.35pt; TEXT-INDENT: -15.35pt; mso-char-indent-count: -1.46"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">上面公式是复利计算的基本公式，是了解金融数学的关键。利率越高，复利计算的期数越多，一定量投资的未来值将越大，最初投资的未来值在此时间内增长越快。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 33.65pt; TEXT-INDENT: -18pt; mso-list: l0 level1 lfo1"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-family: 仿宋_GB2312"><span style="mso-list: Ignore">2.<span style="FONT: 7pt 'Times New Roman'">&nbsp; </span></span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">现值（<span lang=EN-US>Present Value</span>）<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.75pt; TEXT-INDENT: 19.95pt; mso-char-indent-count: 1.9; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.5gd"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">现值是终值计算的逆运算。金融决策在许多时候都需要在现在的货币和未来的货币之间作出选择，也就是将未来所获得的现金流量折算与目前的投资额相比交来测算盈亏。现值的计算公式为：<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.75pt; TEXT-INDENT: 19.95pt; mso-char-indent-count: 1.9; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.5gd"><span lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman','serif'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype><span lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman','serif'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600">&nbsp;<span lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman','serif'; POSITION: relative; TOP: 15pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-kerning: 1.0pt; mso-text-raise: -15.0pt"><v:shapetype id=_x0000_t75 stroked="f" filled="f" path="m@4@5l@4@11@9@11@9@5xe" o:preferrelative="t" o:spt="75" coordsize="21600,21600"> <v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></span><v:stroke joinstyle="miter"></v:stroke><v:formulas><v:f eqn="if lineDrawn pixelLineWidth 0"></v:f><v:f eqn="sum @0 1 0"></v:f><v:f eqn="sum 0 0 @1"></v:f><v:f eqn="prod @2 1 2"></v:f><v:f eqn="prod @3 21600 pixelWidth"></v:f><v:f eqn="prod @3 21600 pixelHeight"></v:f><v:f eqn="sum @0 0 1"></v:f><v:f eqn="prod @6 1 2"></v:f><v:f eqn="prod @7 21600 pixelWidth"></v:f><v:f eqn="sum @8 21600 0"></v:f><v:f eqn="prod @7 21600 pixelHeight"></v:f><v:f eqn="sum @10 21600 0"></v:f></v:formulas><v:path o:connecttype="rect" gradientshapeok="t" o:extrusionok="f"></v:path><o:lock aspectratio="t" v:ext="edit"></o:lock></v:shapetype></span></span><span lang=EN-US style="FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-size: 11.0pt"><o:p><span lang=EN-US style="FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-size: 11.0pt"><o:p><img style="WIDTH: 101px; HEIGHT: 44px" height=44 alt="" src="http://www.cnitblog.com/images/cnitblog_com/huchangjun1980/pv.png" width=101 border=0></o:p></span></o:p></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.75pt; TEXT-INDENT: 19.95pt; mso-char-indent-count: 1.9; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.5gd"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">计算现值的过程叫贴现，所以现值也常称为贴现值，其利率<span lang=EN-US>r</span>则被称为贴现率，<span lang=EN-US>1/(1+r)<sup>n</sup></span>被称为现值利息因素。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.75pt; TEXT-INDENT: 19.95pt; mso-char-indent-count: 1.9; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.5gd"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">假定客户预计在<span lang=EN-US>6</span>年后想买房，房子价格为<span lang=EN-US>100</span>万元，目前想投资某基金，此基金报酬率为<span lang=EN-US>35</span>％，问现值需要投资多少钱即可在<span lang=EN-US>6</span>年后达到预期目标？<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.75pt; TEXT-INDENT: 19.95pt; mso-char-indent-count: 1.9; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.5gd"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp; </span></span><span lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman','serif'; POSITION: relative; TOP: 8.5pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-text-raise: -8.5pt"><img style="WIDTH: 80px; HEIGHT: 40px" height=40 alt="" src="http://www.cnitblog.com/images/cnitblog_com/huchangjun1980/pv_test.png" width=80 border=0></span><span lang=EN-US style="FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-size: 11.0pt"><o:p></o:p></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.75pt; TEXT-INDENT: 19.95pt; mso-char-indent-count: 1.9; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.5gd"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman','serif'; POSITION: relative; TOP: 4pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-text-raise: -4.0pt"><v:shape id=_x0000_i1025 style="WIDTH: 12.75pt; HEIGHT: 15pt" type="#_x0000_t75"><v:imagedata chromakey="white" o:title="" src="file:///C:\DOCUME~1\ADMINI~1\LOCALS~1\Temp\msohtmlclip1\01\clip_image005.png"><font size=3></font></v:imagedata></v:shape>＝</span><span lang=EN-US style="FONT-FAMILY: 仿宋_GB2312">165195.19</span><span style="FONT-FAMILY: 仿宋_GB2312">（元）<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.75pt; TEXT-INDENT: 19.95pt; mso-char-indent-count: 1.9; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.5gd"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">也就是说，现在只要投资<span lang=EN-US>165195.19</span>元购买该基金，只要年报酬率保持在<span lang=EN-US>35</span>％，<span lang=EN-US>6</span>年后就可以实现买房的目标了。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoListParagraph style="MARGIN: 3pt 0cm 3pt 33.65pt; TEXT-INDENT: -18pt; mso-char-indent-count: 0; mso-list: l0 level1 lfo1"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312; mso-bidi-font-family: 仿宋_GB2312"><span style="mso-list: Ignore">3.<span style="FONT: 7pt 'Times New Roman'">&nbsp; </span></span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">普通年金<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.45pt; TEXT-INDENT: 20.6pt; mso-char-indent-count: 1.96; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.47gd"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">年金一般是指在一定期数的期限内，每期相等的一系列现金流量。比较常见的年金支付形式是支付发生在期末，这种年金被称为普通年金。现举例说明年金价值的计算。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.45pt; TEXT-INDENT: 20.6pt; mso-char-indent-count: 1.96; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.47gd"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">如果一位退休工人得到一笔每期<span lang=EN-US>1000</span>元的<span lang=EN-US>3</span>年期年金，每年都以<span lang=EN-US>9</span>％的年利率进行再投资，在第三年末，这笔年金将价值多少？下表回答了这个问题。<span lang=EN-US><o:p></o:p></span></span></p>
<table class=MsoTableGrid style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; MARGIN: auto auto auto 15.9pt; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-yfti-tbllook: 1184; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt" cellSpacing=0 cellPadding=0 border=1>
    <tbody>
        <tr style="mso-yfti-irow: 0; mso-yfti-firstrow: yes">
            <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-right-themecolor: text1; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid black .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">年<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-right-themecolor: text1; mso-border-top-alt: windowtext; mso-border-bottom-alt: windowtext; mso-border-right-alt: black; mso-border-left-alt: black; mso-border-left-themecolor: text1; mso-border-style-alt: solid; mso-border-width-alt: .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">年金额&#215;（<span lang=EN-US>1</span>＋<span lang=EN-US>r</span>）<sup><span lang=EN-US>n</span></sup><span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">未来值<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
        </tr>
        <tr style="HEIGHT: 17.6pt; mso-yfti-irow: 1">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 17.6pt; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1<o:p></o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 17.6pt; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1000</span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">&#215;（<span lang=EN-US>1</span>＋<span lang=EN-US>0.09</span>）<sup><span lang=EN-US>2</span></sup><span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 17.6pt; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1188.10<o:p></o:p></span></p>
            </td>
        </tr>
        <tr style="mso-yfti-irow: 2">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">2<o:p></o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent; mso-border-right-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1000</span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">&#215;（<span lang=EN-US>1</span>＋<span lang=EN-US>0.09</span>）<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1090.00<o:p></o:p></span></p>
            </td>
        </tr>
        <tr style="mso-yfti-irow: 3">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">3<o:p></o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1000<o:p></o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-bottom-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1000.00<o:p></o:p></span></p>
            </td>
        </tr>
        <tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">合计<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-right-themecolor: text1; mso-border-top-alt: solid windowtext .5pt; mso-border-right-alt: solid black .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><o:p>&nbsp;</o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">3278.10<o:p></o:p></span></p>
            </td>
        </tr>
    </tbody>
</table>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.45pt; TEXT-INDENT: 20.6pt; mso-char-indent-count: 1.96; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.47gd"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">从上表可以看到，求一笔年金的未来值，实际上就是对每一个等比数列求和。推导出普通年金的未来值计算公式为：<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.45pt; TEXT-INDENT: 20.6pt; mso-char-indent-count: 1.96; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.47gd"><span lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman','serif'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><img style="WIDTH: 101px; HEIGHT: 37px" height=37 alt="" src="http://www.cnitblog.com/images/cnitblog_com/huchangjun1980/pn.png" width=101 border=0></span><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><o:p></o:p></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">式中，<span lang=EN-US>A</span>为每期年金额；<span lang=EN-US>r</span>为再投资收益率；<span lang=EN-US>n</span>为从支付日到期末所余年数。<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm"><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">所以上例<span lang=EN-US>3</span>年期年金现值可以通过分别计算第<span lang=EN-US>1</span>年、第<span lang=EN-US>2</span>年、第<span lang=EN-US>3</span>年末收到的<span lang=EN-US>1000</span>元的现值之和得到。如下表所示。<span lang=EN-US><o:p></o:p></span></span></p>
<table class=MsoTableGrid style="BORDER-RIGHT: medium none; BORDER-TOP: medium none; MARGIN: auto auto auto 15.9pt; BORDER-LEFT: medium none; BORDER-BOTTOM: medium none; BORDER-COLLAPSE: collapse; mso-border-alt: solid black .5pt; mso-border-themecolor: text1; mso-yfti-tbllook: 1184; mso-padding-alt: 0cm 5.4pt 0cm 5.4pt" cellSpacing=0 cellPadding=0 border=1>
    <tbody>
        <tr style="mso-yfti-irow: 0; mso-yfti-firstrow: yes">
            <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-right-themecolor: text1; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid black .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">年<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-right-themecolor: text1; mso-border-top-alt: windowtext; mso-border-bottom-alt: windowtext; mso-border-right-alt: black; mso-border-left-alt: black; mso-border-left-themecolor: text1; mso-border-style-alt: solid; mso-border-width-alt: .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">年金额<span lang=EN-US>/</span>（<span lang=EN-US>1</span>＋<span lang=EN-US>r</span>）<sup><span lang=EN-US>n</span></sup><span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: windowtext 1pt solid; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">未来值<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
        </tr>
        <tr style="HEIGHT: 17.6pt; mso-yfti-irow: 1">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 17.6pt; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1<o:p></o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 17.6pt; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1000/</span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">（<span lang=EN-US>1</span>＋<span lang=EN-US>0.09</span>）<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; HEIGHT: 17.6pt; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">917.40<o:p></o:p></span></p>
            </td>
        </tr>
        <tr style="mso-yfti-irow: 2">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">2<o:p></o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent; mso-border-right-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1000/</span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">（<span lang=EN-US>1</span>＋<span lang=EN-US>0.09</span>）<sup><span lang=EN-US>2</span></sup><span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: #d4d0c8; BACKGROUND-COLOR: transparent; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">841.70<o:p></o:p></span></p>
            </td>
        </tr>
        <tr style="mso-yfti-irow: 3">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">3<o:p></o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">1000/</span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">（<span lang=EN-US>1</span>＋<span lang=EN-US>0.09</span>）<sup><span lang=EN-US>3</span></sup><span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-bottom-alt: solid windowtext .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">772.20<o:p></o:p></span></p>
            </td>
        </tr>
        <tr style="mso-yfti-irow: 4; mso-yfti-lastrow: yes">
            <td style="BORDER-RIGHT: windowtext 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 88.85pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-right-alt: solid windowtext .5pt" vAlign=top width=118>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">合计<span lang=EN-US><o:p></o:p></span></span></p>
            </td>
            <td style="BORDER-RIGHT: black 1pt solid; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 184.3pt; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-alt: solid windowtext .5pt; mso-border-right-themecolor: text1; mso-border-top-alt: solid windowtext .5pt; mso-border-right-alt: solid black .5pt; mso-border-left-alt: solid windowtext .5pt" vAlign=top width=246>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><o:p>&nbsp;</o:p></span></p>
            </td>
            <td style="BORDER-RIGHT: #d4d0c8; PADDING-RIGHT: 5.4pt; BORDER-TOP: #d4d0c8; PADDING-LEFT: 5.4pt; PADDING-BOTTOM: 0cm; BORDER-LEFT: #d4d0c8; WIDTH: 4cm; PADDING-TOP: 0cm; BORDER-BOTTOM: windowtext 1pt solid; BACKGROUND-COLOR: transparent; mso-border-top-alt: solid windowtext .5pt; mso-border-bottom-alt: solid windowtext .5pt; mso-border-left-alt: solid black .5pt; mso-border-left-themecolor: text1" vAlign=top width=151>
            <p class=MsoNormal style="MARGIN: 3pt 0cm; TEXT-ALIGN: center" align=center><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">2531.30<o:p></o:p></span></p>
            </td>
        </tr>
    </tbody>
</table>
<p class=MsoNormal style="MARGIN: 3pt 0cm"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">年金现值是对一个未来值的贴现，公式为：<span lang=EN-US><o:p></o:p></span></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm 3pt 15.45pt; TEXT-INDENT: 20.6pt; mso-char-indent-count: 1.96; mso-para-margin-top: 3.0pt; mso-para-margin-right: 0cm; mso-para-margin-bottom: 3.0pt; mso-para-margin-left: 1.47gd"><span lang=EN-US style="FONT-SIZE: 10.5pt; FONT-FAMILY: 'Times New Roman','serif'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><strong><span><img style="WIDTH: 116px; HEIGHT: 49px" height=49 alt="" src="http://www.cnitblog.com/images/cnitblog_com/huchangjun1980/pvn.png" width=116 border=0></span></strong></span><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><o:p></o:p></span></p>
<p class=MsoNormal style="MARGIN: 3pt 0cm"><span lang=EN-US style="COLOR: black; FONT-FAMILY: 仿宋_GB2312"><span style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span></span><span style="COLOR: black; FONT-FAMILY: 仿宋_GB2312">式中，<span lang=EN-US>A</span>为每期年金额；<span lang=EN-US>r</span>为贴现率；<span lang=EN-US>n</span>为从支付日距期初的年数。<span lang=EN-US><o:p></o:p></span></span></p>
<img src ="http://www.cnitblog.com/huchangjun1980/aggbug/42667.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cnitblog.com/huchangjun1980/" target="_blank">小胡子</a> 2008-04-23 21:57 <a href="http://www.cnitblog.com/huchangjun1980/articles/42667.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item><item><title>投资组合之——有效边界（Efficient frontier）</title><link>http://www.cnitblog.com/huchangjun1980/articles/42203.html</link><dc:creator>小胡子</dc:creator><author>小胡子</author><pubDate>Thu, 10 Apr 2008 13:37:00 GMT</pubDate><guid>http://www.cnitblog.com/huchangjun1980/articles/42203.html</guid><wfw:comment>http://www.cnitblog.com/huchangjun1980/comments/42203.html</wfw:comment><comments>http://www.cnitblog.com/huchangjun1980/articles/42203.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://www.cnitblog.com/huchangjun1980/comments/commentRss/42203.html</wfw:commentRss><trackback:ping>http://www.cnitblog.com/huchangjun1980/services/trackbacks/42203.html</trackback:ping><description><![CDATA[<p>先记住一个名字：&#8220;<span style="COLOR: red">马科维茨</span>&#8221;<br><strong>概述：<br></strong></p>
<p class=post>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;有效边界是用来描述一项投资组合的风险与回报之间的关系，在以风险为横轴，预期回报率为纵轴的坐标上显示为一条曲线，所有落在这条曲线上的风险回报组合都是在一定风险或最低风险下可以获得的最大回报。<br>基础：<br></p>
<p><strong>1、追求收益最大化的规律特征</strong> </p>
<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;这一特征表现在：当风险水平相当时，理性投资者都偏好预期收益较高的交易。在可能的范围内，投资者总是选择<span style="COLOR: #ff0000">收益率最高</span><span>的资产；但是另一方面，与之相对的市场资金需求者为了自身收益最大化的要求则要选择成本最低的融资方式。</span></p>
<p><strong>2、厌恶风险的规律特征</strong>&nbsp;<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;这一特征表现在，当预期收益相当时，理性投资者总是偏好风险较小的交易。风险越大，风险补偿额也就越高。</p>
<p><strong>3、求效用最大化</strong><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;追求效用最大化就是要选择能带来最大满足的风险与收益的资产组合。效用由无差异曲线表示，可供选择的最佳风险与收益组合的集合由有效益边界表示，效用曲线与有效益边界的切点就是提供最大效用的资产组合。<br>&nbsp;&nbsp;&nbsp;&nbsp;（1）风险厌恶的资金供应者的无差异曲线。金融市场的无差异曲线表示在一定的风险和收益水平下，资金供应者对不同资金组合的满足程度无区别的，即同等效用水平曲线。如下图是一组风险厌恶的资金供应者的无差异曲线。<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;不同水平的曲线代表着效用的大小，水平越高，效用越大，这里曲线C显然代表这最大效用。<br></p>
<div align=center src_cetemp="http://www.cnitblog.com/images/cnitblog_com/huchangjun1980/ef_1.png"><img height=269 alt="" src="http://www.cnitblog.com/images/cnitblog_com/huchangjun1980/ef_1.png" width=443 border=0><br><br>风险厌恶投资者的无差异曲线图<br></div>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;曲线的凸向反映着资金供应者对风险的态度，由于X轴是风险变量，Y轴是预期收益变量，因此，曲线右凸反映风险厌恶偏好。风险厌恶者要求风险与收益成正比，曲线越陡，风险增加对收益补偿要求越高，对风险的厌恶越强烈；曲线斜度越小，风险厌恶程度越弱。风险中性的无差异曲线为水平线，风险偏好的无差异曲线为左凸曲线。 <br><br>待续...<br><br><strong>参考文献：</strong><br><br><span style="FONT-SIZE: 10pt">《证券投资学》第二版 第10章 证券组合管理</span> 
<img src ="http://www.cnitblog.com/huchangjun1980/aggbug/42203.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://www.cnitblog.com/huchangjun1980/" target="_blank">小胡子</a> 2008-04-10 21:37 <a href="http://www.cnitblog.com/huchangjun1980/articles/42203.html#Feedback" target="_blank" style="text-decoration:none;">发表评论</a></div>]]></description></item></channel></rss>