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【Econometrics】Proof of Properties of Estimator

In the last post, we went through the properties of estimators. This post contains a mathematical proof of two properties: Unbiasedness and Consistency 【Econometrics】Estimator As "econometrics" means to "measure" "economics", our goal is to derive the best estimate on an economic relationship. Then, what is the "best" estimator? Properties of Estimator 1. Unbiased (불편;.. quant-curiosity.tistory...

Study Note/Econometrics 2020. 6. 27. 06:02

【Econometrics】Estimator

As "econometrics" means to "measure" "economics", our goal is to derive the best estimate on an economic relationship. Then, what is the "best" estimator? Properties of Estimator 1. Unbiased (불편; 편향되지 않은) Equation 1 $$ E(\bar{X}) = \mu $$ We prefer that estimator be "accurate" or "unbiased" : meaning the estimator will reflect the population parameter as closely as possible. Estimator reflects t..

Study Note/Econometrics 2020. 6. 27. 05:11

【Quantitative Methods】Time Value of Money (0)

Three at Dawn or Four at Musk During the Warring States Era, there lived a man who loved taking care of his monkeys (as pets). He felt incredibly thankful to have such animals that understand his intentions, so much so that he would take from food reserved for his family and feed the monkeies. However, this couldn't last long. His family was running out of food, and so he decided to reduce the n..

Study Note/Quantitative Methods 2020. 6. 25. 13:43

【FRM Part I】 Review :: Preparation Strategy & Result

Occupation: Goverment Office Employee (Full-time) & Tutor (Part-time) Experience in Finance: 0 Study Period: 5 months Preparation When I signed up for FRM Part I, I was working one full-time and one part-time shifts. Due to time constraint, I spent a good amount of time to come up with an efficient roadmap for the test. Preparation Plan Foundation of Risk Management Quantitative Analysis Financi..

Study Note/FRM 2020. 6. 24. 13:14

【Econometrics】Derivatives

Derivatives From today, we will delve into mathematics and statistics used for econometric analyses. First, we begin with a review of derivatives. Motivation Regression line, which represents the relationship between A and B, we need derivatives. Roughly, the idea is to find the line that best fits the actual observations and the predictions generated by your statistical model set-up. Definition..

Study Note/Econometrics 2020. 6. 17. 08:36

【Econometrics】Data Types

Data TypesIn the last post, we went through a couple of examples of econometric questions. In this post, we will walk through three major data types used for econometric analyses. I. Cross-Sectional DataCross-Sectional data is data which describes the activities of "entities" (individuals, firms, or other units) at a given point in time. Example 1. Data Format (Numbers are arbitrary) Example 2. ..

Study Note/Econometrics 2020. 6. 17. 08:15

【Econometrics】Econometric Questions

Econometric Questions In the last post, I laid out a broad overview of what consists an econometric analysis. As a start, this post cites a couple of examples of econometric studies and demonstrate what kind of questions and information are included and important. 2020/06/05 - [Studies/Econometrics] - Econometrics (0) :: What is Econometrics? Example 1. Breastfeeding and IQ."Based on data collec..

Study Note/Econometrics 2020. 6. 17. 06:47

【FRM Part I】 Introduction to FRM

What is Financial Risk Manager (FRM)?A professional designation issued by the Global Association of Risk Professionals (GARP). Globally recognized along with other designations such as Chartered Financial Analyst (CFA).Specializes in assessing risk. RequirementsIn order to obtain FRM designation, all of the three requirements below must be met.Pass FRM Exam Part IPass FRM Exam Part II within 4 y..

Study Note/FRM 2020. 6. 17. 05:59

【Econometrics】 What is Econometrics?

What is Econometrics? Econometrics is the quantitative analysis of actual economic phenomena based on concurrent development of theory and observation, related by appropriate methods of inference. To simply put, it is a study process of mathematical statistics and statistical theory to extract simple economic relationships. The most basic tool is linear regression model. The Econometric Society ..

Study Note/Econometrics 2020. 6. 5. 02:52