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Difference in Difference
效應評估模型 “提高最低工資是否會減少就業?” “最低工資提高是否餐廳的全職員工數會減少?” 假設 $MinWage$為「最低工資有提高」的虛擬變數
Last updated on Sep 25, 2019
2 min read
R
Panel Data
效應評估模型 \[ mrall=mrall_{-BeerTax}+\beta^*BeerTax \] 提高啤酒稅(BeerTax)是否有助減低車禍死亡率(mrall)? 固定效應模型 令 $W$代表「州愛喝酒程度」。 $W$與 $mr
Last updated on Sep 25, 2019
3 min read
R
Linear Regression
OLS estimator The method to compute (or estimate) $b_0$ and $b_1$ we illustrated above is called Ordinary Least Squares, or OLS. $b_0$ …
Last updated on Sep 25, 2019
7 min read
R
工具变量
效應評估模型 \[Y_{i}={Y}_{-p,i}+\beta_i P_{i}\] \[ Y_i=Y_{-P,i}+\beta^* P_i \] \[ \begin{equation} …
Last updated on Sep 25, 2019
4 min read
R
Ghost Blog Workflow
Sep 25, 2019 的update: 这个WorkFlow不太完美,现在转用Blogdown和Git来管理,正在摸索中。 总算把Ghost配得七七八八,以后要
Last updated on Sep 25, 2019
1 min read
Workflow
Logistic Regression
Odds ratios An odds ratio of 1.0 is equivalent to a beta weight of 0.0. Group Diseased Healthy Exposed $D_E$ $H_E$ Not exposed $D_N$ …
Last updated on Sep 25, 2019
2 min read
Stata
Measurement, reliability, and validity
Constructing a Scale recode empathy2 empathy4 empathy5 (1=5 "Does not describe very well") /// (2=4) (3=3) (4=2) (5=1 "Describes very …
Last updated on Sep 25, 2019
4 min read
Stata
Missing values
Many advanced Stata estimation models can use multiple imputation for handling missing values. Auxiliary variables are variables that …
Last updated on Sep 25, 2019
2 min read
Stata
Multilevel analysis
Multilevel analysis can address the lack of independence of the observations when you are analyzing grouped data. See Stata Multilevel …
Last updated on Sep 25, 2019
2 min read
Stata
Multiple Regressions
Note: toc is not compatible with markup: mmark Basic F: There is a highly significant relationship between outcomes and the set of …
Last updated on Sep 25, 2019
4 min read
Stata
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