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1、计量经济学重点(简答题)一、什么是计量经济学?计量经济学,又称经济计量学,它是以一定的经济理论和实际统计资料为依据,运用数学、统计学和计算机技术,通过建立计量经济学模型,定量分析经济变量之间的随机因果关系.。二、计量经济学的研究的步骤是什么?1)理论模型的设计A.理论或假说的陈述;B.理论的数学模型的设定;C.理论的计量经济模型的设定。i.把模型中不重要的变量放进随机误差项中;ii.拟定待估参数的理论期望值。2)获取数据数据来源:网络、统计年鉴、报纸、杂志数据类别:时间序列数据、截面数据、混合数据、虚
2、变量数据。数据要求:完整性、准确性、可比性、一致性i.完整性:模型中包含的所有变量都必须得到相同容量的样本观察值。ii.准确性:统计数据或调查数据本身是准确的。iii.可比性:数据口径问题。iv.一致性:指母体与样本的一致性。3)模型的参数估计:普通最小二乘法。4)模型的检验:经济学检验;统计学检验;计量经济学检验;模型的预测检验。5)模型的应用:结构分析;经济预测;政策评价;经济理论的检验与发展。三、简述统计数据的类别?时间序列数据、截面数据、混合数据、虚变量数据。1)时间序列数据:按时间先后排列收
3、集的数据。andactualcasewhethermatch;byislocatedlandrightnature;propertystatus,whetherhasdamageorqualityproblem;propertyusingsituation,rentaloruse;referencearoundsimilarpropertyprice,judgeassessmentvalueofrationality;whetherexistspropertydisputes,andseized,an
4、dfreeze,andmortgage,anddemolition,andtransformation,limitsituation.2.tolandrightmortgageof,surveypeopleshouldverifiedfollowinginformation:landrightcardbycontainsMinginformation(rightpeople,andlocation,andnature,andterm,andarea,)andactualcasewhethermatch
5、;landnature;landflatsituation;groundbuildingssituation;referencearoundsimilarlandprice,judgeassessmentvalueofrationality;mortgagerealwhetherhasothermortgagerightornoticeregistrationestablishedprior;whetherexistspropertydisputes,andseized,andfreeze,andmo
6、rtgage,limitsituation.3.otherchattels,ownership,thevalueofthemortgageshouldbeimplemented,andwhetherfactorssuchaseasyhandling.(C)pledgeofcollateralinvestigationprocedures,investigatorsshouldenforcecollateralvalue,conveniencecustodyanddisposition,pledgeri
7、ghtseffectiveidentification,registration,etc.(D)guaranteeinvestigationtoensurethattheprocedures,theinvestigationshall,inaccordancewiththeborrower'sstandardstoinvestigatetheguarantorevaluationassurance.15thinformationauditsurveypeopledealwithborrowersand
8、qualificationprovidedbytheguarantor,financialstatus,proofofidentity,theauthenticityofthedatacarefullyreviewed,verified,rationalityandeffectiveness.Include:(a)theborrowerdataauditing1.corporateclientsshouldfocusonassessingvarioust