К основному контенту

Сообщения

Herbst (2017)

This question set is based on Herbst (2017) and focuses on analyzing the impact of universal child care on maternal employment in the United States. Here's a breakdown of how to address each question: (a) Identification Strategy and What is Identified The identification strategy likely involves a difference-in-differences (DiD) or triple-difference (DDD) approach to estimate the causal effect of universal child care policies on maternal employment. This approach would compare employment rates of mothers before and after policy implementation, between areas that adopted the policy and those that didn't. The goal is to control for both time-specific and region-specific effects, isolating the effect of child care access on maternal employment. Here, the primary effect identified is the impact of access to universal child care on the likelihood of mothers entering or remaining in the workforce. (b) Interpretation of the Empirical Model The empirical model presented is: ...
Pinotti (2015): (a) Describe the synthetic control group method and its primary assumption for validity. • The synthetic control group method is a technique used in causal inference, particularly to evaluate the effects of an intervention or treatment when a randomized experiment is not feasible. This method constructs a "synthetic" version of a treatment group by creating a weighted combination of control units (i.e., other regions or groups that did not receive the treatment) that best match the treatment group in terms of pre-treatment characteristics. • The primary assumption for this method to be valid is that the synthetic control replicates the counterfactual outcome—that is, the outcome that would have occurred in the absence of the treatment. This assumes that any difference between the treatment group and the synthetic control after the intervention can be attributed to the treatment effect alone. (b) Why does the author consider the effect of organized ...

Bettinger et al. (2017)

The problem is related to the study by Bettinger et al. (2017) that investigates the effects of taking college courses online versus in-person on student achievement. Let's break down the questions based on the given regression model: ### (a) Describe all the variables on the right-hand side of the model, including those denoted by Greek letters. The regression model provided is: \[ y_{ict} = \delta \cdot Online_{ict} + y_{i,\tau < t} \cdot \alpha + X_{it} \cdot \beta + \pi_c + \phi_t + \psi_{b(it)} + \rho_{p(it)} + \epsilon_{ict} \] - **\( Online_{ict} \)**: A binary variable indicating whether student \( i \) took course \( c \) online in period \( t \). - **\( y_{i,\tau < t} \)**: Previous academic performance or course grades of student \( i \) before time \( t \), included to control for past performance. - **\( X_{it} \)**: A vector of student-level characteristics, such as demographics (age, gender, ethnicity) or academic background. - **\( \pi_c \)**: Course fixed eff...

Bettinger et al. (2017)

The problem is related to the study by Bettinger et al. (2017) that investigates the effects of taking college courses online versus in-person on student achievement. Let's break down the questions based on the given regression model: (a) Describe all the variables on the right-hand side of the model, including those denoted by Greek letters. The regression model provided is:  • : A binary variable indicating whether student  took course  online in period . • : Previous academic performance or course grades of student  before time , included to control for past performance. • : A vector of student-level characteristics, such as demographics (age, gender, ethnicity) or academic background. • : Course fixed effects, controlling for differences between various courses . • : Time fixed effects, controlling for changes over time that could affect all students. • : Fixed effects for student's high school (or another baseline variable ), controlling for ...

Елена • Английский для жизни, бизнеса, путешествий | Как помочь ребенку свободно заговорить на Английском? Присоединяйтесь к уникальному проекту: закрытому телеграм каналу для родителей и... | Instagram

https://www.instagram.com/p/DALXZ9YojKd/?chaining=true Sent from my iPhone
Letter: Generation X Germans may be last to enjoy Europe's dolce vita From Alka Schumacher, Cologne, Germany