Quantile regression coefficients, Econometrics

Assignment Help:

Consider the study of the effect of public-sponsored training programs. As argued in public programs of training and employment are designed to improve participant's productive skills, which in turn would affect their earnings and dependency on social welfare benefits.

We use the Job Training Partnership Act (JTPA), a public training program that has been extensively studied in the literature. For example, see The JTPA was a large publicly-funded training program in the United States that began funding in October 1983 and continued until late 1990's. We focus on the Title II subprogram, which was offered only to individuals with \barriers to employment" (long-term use of welfare, being a high-school drop-out, 15 or more recent weeks of unemployment, limited English proficiency, phsysical or mental disability, reading proficiency below 7th grade level or an arrest record). Individuals in the randomly assigned JTPA treatment group were offered training, while those in the control group were excluded for a period of 18 months.

Our interest lies in measuring the effect of training on participants' future earnings.

We use the database in ? that contains information about adult male and female JTPA participants and non-participants.

It has the following variables:

_ earnings: 30 months accumulated earnings

_ jtpa offer: JTPA offer: dummy variable for individuals that recived a JTPA offer;

_ jtpa training: JTPA training: dummy variable for individuals that took JTPA training;

_ sex: male dummy variable;

_ hsorged: dummy variable for individuals with completed high school or GSE;

_ black: race dummy variable;

_ hispanic: dummy variable for hispanic;

_ married: dummy variable for married individuals;

_ wkless13: dummy variable for individuals working less than 13 weeks in the past year;

_ age2225,age2629,age3035,age3644 and age4554: age range indicator variables.

Question 1.a The government is interested in whether JTPA training had an effect on future earnings after controlling for the effect of age, marital status, gender, race and education. Using OLS estimate this effect and comment on its sign, magnitude and statistical significance. Repeat the analysis for those with positive earnings only. Are there differences between these two estimations? Why? Also compute the same estimates in log earnings and comment.

Question 1.b The government is interested in knowing if training has a different effect on men than in women. Can you test for that using the first OLS model in

Q 1.a (in levels, including 0 earnings, controlling for covariates)?

Question 1.c Using the first model in Q 1.a., analyze if there are differences across the effect of training on wages on different quintiles of the distribution.

Comment on its differences using quantile regression models. Present a graph for

f0:1; 0:2; 0:3; 0:4; 0:5; 0:6; 0:7; 0:8; 0:9g containing the quantile regression coefficients of the effect of training on wages, together with its 95% con_dence interval.

Question 1.d Provide an elaborated argument to justify that the estimators of the effect of training in Q 1.a may be upward biased.

Question 1.e Use an instrumental variables strategy to find a consistent estimator of the effect of training on wages. You should argue that jtpa offer serves as a good instrument for jtpa training. Explain very carefully.


Related Discussions:- Quantile regression coefficients

Macro econometrics.., (b) Suppose that the initial conditions are as follow...

(b) Suppose that the initial conditions are as follows: y0 = 0 and et = 0 for t= 0. Impose the initial conditions in order to find the general solution.

Explain the term volatility clustering, Problem: (a) Write down the equ...

Problem: (a) Write down the equation for symmetric GARCH and clearly explain its components. (b) Explain the term ‘volatility clustering'. (c) How would you model leverag

Compute the cpi and inflation rate, In a simple economy, people consume onl...

In a simple economy, people consume only 2 goods, food and clothing. The market basket of goods used to compute the CPI has 50 units of food and 10 units of clothing.

Discuss the criteria of the evaluation framework, Question 1: Explain t...

Question 1: Explain the main drivers of globalisation and ascertain whether they have helped to reduce the gap between the rich and the poor countries. Question 2: Disc

Econometric model, Provide a clear statement of the research topic and the ...

Provide a clear statement of the research topic and the underlying relationship that you are modeling. Identify the dependent variable and the independent variables (minimum of 3 i

What do you understand by non-linear models, Question: (a) Formulate a ...

Question: (a) Formulate a VAR with 4 lags and also rewrite it in matrix form, mentioning the limitations of such models. (b) What is the rationale behind introducing lag-dep

Hetroscedasticity, hypothetical data on consumption expenditure ($) and inc...

hypothetical data on consumption expenditure ($) and income ($) is given in the table x Y 80 55 100 65 85 70 110 80 120 79 115 84

Explain the concept of cointegration, Problem 1: (a) Using examples exp...

Problem 1: (a) Using examples explain the concept of cointegration. (b) Explain the term ‘stationarity' and its importance. (c) Differentiate between stochastic and determinist

Quantity theory of money , Suppose an economy has the following Real money ...

Suppose an economy has the following Real money demand Function: L(Y,i) = 1000 + 0.3Y - 4000i, where   i is the nominal interest rate paid on non-monetary (financial) assets,

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd