金融计量学习题及习题答案(共26页).doc
《金融计量学习题及习题答案(共26页).doc》由会员分享,可在线阅读,更多相关《金融计量学习题及习题答案(共26页).doc(26页珍藏版)》请在淘文阁 - 分享文档赚钱的网站上搜索。
1、精选优质文档-倾情为你奉上诚实考试吾心不虚 ,公平竞争方显实力,考试失败尚有机会 ,考试舞弊前功尽弃。上海财经大学 Financial Econometrics 课程考试卷一课程代码 课程序号 姓名 学号 班级 题号一二三四五六七八九十总分得分Part 1 Term Explanation (20 marks)1White Noise2RandomWalk3Akaike Information Criterion4Jarque-Bera Statistic5Chow TestImportant Point:1White Noise:White Noise is the special case
2、 of stationary stochastic process. We call a stochastic process purely random or white noise if it has zero mean, constant variance and is serially uncorrelated.2RandomWalk: Random walk means that the stochastic process is nonstationary and value of this period is highly related to the past values.
3、For example, the stock price today may equal the yesterdays price plus a random shock. Random walk without drift can be expressed as 3Akaike Information Criterion: AIC provide a way to select the better regression model among several models by comparing their forecast performance. The lower the AIC,
4、 the better the forecast performance will be. AIC will also be used to determine the lag length in ARDL approach.4Jarque-Bera Statistic: The Jarque-Bera test is the test of normality. We first calculate the skewness and the kurtosis, and it is also based on the residual of the regression. The Jarque
5、-Bera Statistic=, where S is the skewness and K is the kurtosis, n is sample size, and for normal distribution, S=0, K=3, if JB statistic is not significantly different from zero, p value is quite low, we reject the null hypothesis that the residual is normally distributed.5Chow Test: The test of st
6、ructural change of the regression. The estimate of the parameter of the regression may not retain the same through the entire time period; we use the Chow test to test whether the relationship is stable and find the break point. It develop theF statistics=, the null hypothesis is the regression is s
7、table.Part 2 Explain main purpose(s) of constructing following two models and making comments on the empirical results. (25marks)1.Gregory Chow (1966) where M = natural logarithm of total money stock Yp = natural logarithm of permanent income Y = natural logarithm of current income R = natural logar
8、ithm of rate of interest2.Taylor and Newhouse (1969)本题答题要点:1。模型一的建模理念是准备检验凯恩斯和弗里德曼德货币需求理论,根据t统计量的结果,模型并没有能明确说明支持或拒绝哪种理论; 10分2。模型二也是准备检验凯恩斯和弗里德曼德货币需求理论,根据t统计量的结果,模型明确说明支持凯恩斯货币需求理论并拒绝弗里德曼德货币需求理论; 10分3。模型二的特色之一是引入因变量的前一期做为自变量; 2分4。两个模型都存在伪回归的嫌疑。 2分5。专业英语词汇表达错误将被少量扣分。1分Part 3 Explanations of four diagno
9、stic tests and making comments on the empirical results of following two models on the basis of diagnostic tests. (25marks)本题答题要点:1 分别对四个诊断检验予以说明 12分2 分别对两图实证结果予以判读 8分3 说明与图二相比,图一错误的根源在于将非线性的柯布道格拉斯生产函数直接线性拟合 4分4 专业英语词汇表达错误将被少量扣分1分Part 4 Prof. Milton Friedman argued that there was a positive associat
10、ion between inflation and money supply. Please examine this argument using ECM and Granger Causality test. (30marks)1 对取过对数的变量进行平稳性检验(说明在何种显著性水平条件下的判断) 5分2 对做过差分的变量进行平稳性检验(同阶单整) 5分3 协整检验 (包括协整的意义) 5分4 ECM模型的构造和解释 7分5 Granger因果检验 (要求说明检验阶数的选择) 7分6 专业英语词汇表达错误将被少量扣分1分诚实考试吾心不虚 ,公平竞争方显实力,考试失败尚有机会 ,考试舞弊前功
11、尽弃。上海财经大学 Financial Econometrics 课程考试卷二课程代码 课程序号 姓名 学号 班级 题号一二三四五六七八九十总分得分Part 1 Term explanation (20 marks)1Spurious regressionRegression of one time series variable on one or more time series variables often can give nonsensical or spurious results. Spurious regression often shows a significant re
12、lationship between variables, but in fact, this kind of relationship does not exist.2Q StatisticQ statistic is one of the tests of non-stationary.testing the joint hypothesis that all the up to certain lags are simultaneously equal to zero.3Durbin-Watson StatisticThe Durbin-Watson statistic is a tes
13、t for first-order serial correlation. More formally, the DW statistic measures the linear association between adjacent residuals from a regression model. The Durbin-Watson is a test of the hypothesis If there is no serial correlation, the DW statistic will be around 2. 4Schwarz CriterionIt is define
14、d as:,imposing a penalty for adding regressors to the model.Part 2 Explain the main purpose(s) of constructing the following two models and making comments on the empirical results (25marks)1 Gregory Chow (1966) where M = natural logarithm of total money stock Yp = natural logarithm of permanent inc
15、ome Y = natural logarithm of current income R = natural logarithm of rate of interest2 Taylor and Newhouse (1969)本题答题要点:1。模型一的建模理念是准备检验凯恩斯和弗里德曼德货币需求理论,根据t统计量的结果,模型并没有能明确说明支持或拒绝哪种理论; 10分2。模型二也是准备检验凯恩斯和弗里德曼德货币需求理论,根据t统计量的结果,模型明确说明支持凯恩斯货币需求理论并拒绝弗里德曼德货币需求理论; 10分3。模型二的特色之一是引入因变量的前一期做为自变量; 2分4。两个模型都存在伪回归的
16、嫌疑。 2分5。专业英语词汇表达错误将被少量扣分。1分Part 3.1 Make comments on the following two share price indexes using descriptive statistics including Jaque-Bera statistic. SHA stands for Shanghai stock market share price index and SZA stands for Shenzhen stock market share price index(10marks)本题答题要点:1. 要求按照所给出的统计结果予以解释
17、和比对(10分);2. 特别要求依据Jaque-Bera statistic的结果对上海和深圳股市予以说明(5分)。Part 3.2 Please find any mistakes related to the Granger-causality test of SHA and SZA in the table below and correct mistakes. (15 marks)Pairwise Granger Causality TestsSample: 2/01/1992 31/12/1999Lags: 2 Null Hypothesis:ObsF-StatisticProbab
18、ility SZA does not Granger Cause SHA1888 4.15304 0.01586 SHA does not Granger Cause SZA 1.86122 0.15577 本题答题要点:主要错误如下:1 时间序列数据未作平稳性检验(5分);2 漏做协整检验(5分);3 因果检验的阶数选择存在问题(5分)Part 4 Questions(30 marks)1Explain the features of dummy variable technique used to test the structural change of function (5 mark
19、s)Ans:The dummy variable technique can tell us if it results from change in intercept, or change in slope or both when the structural change does occur.2Explain the Granger representation theorem and features of ECM (10 marks)Ans:The Granger representation theorem:if two variables Y and X are cointe
20、rgated, then the relationship between the two can be expressed as ECM, the error correction mechanism ( 5 marks);Features of ECM:A distinctive feature of the model is that the ECM has both long run and short run properties built into it. (5 marks)3. What are the main implications of CAPM? What is th
21、e Fama-MacBeth Approach? (15marks)Ans:CAPM:The essence of CAPM is that the expected return on any asset is a positive linear function of its beta and that beta is the only measure of risk needed to explain the cross-section of expected returns ( 5 marks);the Fama-MacBeth Approach:The basic idea of t
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 金融 计量学 习题 答案 26
限制150内