Problem Set 4
Economics 553
Question 1: True/False/Explain
1. If you estimate the following equation with a dummy indicating that you are a noncitizen
instead of a dummy=1 if you are a citizen, you will get the same coecients and standard
errors.
Y= 142 +
Sarah Alliegro
Introduction to Econometrics
7/30/2015
Homework #3
1.(Wooldridge C9.11 slightly modified)
(i) Estimating the regression model of mrdrte on exec, unem using the data for the year 1993 only, the
coefficient on exec is 0.084923 and the respect
Problem Set 1
Economics 553
Fall 2015
HW due on Friday, September 25th at 6PM in TA Mailbox.
Please turn in the entire, completed HW. Only Question 3 will be graded.
Question 1: True, False, Explain.
1. The probability of an outcome is the number of times
Problem Set 4
Economics 553 - Fall 2015
Due on Friday, Nov. 6 at 5PM in the TA Mailbox. Please turn in the entire,
completed homework. Only Question 2 will be graded.
Question 1: True/False/Explain
1. If you estimate the following equation with a dummy in
Practice Problems for Midterm 1
Multiple Choice Questions
Chapter 2
1)
The probability of an outcome
a.
b.
c.
d.
is the number of times that the outcome occurs in the long run.
equals M N, where M is the number of occurrences and N is the population size.
log using "Assignment Q7.txt"
codebook male hsgpa
/ part (1): 136 people answered male, 119 answered hsgpa
/part (2): It is not random. because people with lower GPA are not likely to anwser the survey,
/therefore , the sample has higher high school gpas
Econ 553 - Lecture 2 - Statistical Inference and
Intro to Simple Regression Model
Fall 2015
Lecture 2
Part I - Continuation from last time
1. Estimators
An estimator of a parameter is a function of the random
variables in the sample:
= h(X1 , X2 , ., Xn
Econometrics - Lecture I (Pt. 2) - Statistics Review
Mary Ann Bronson
Fall 2015
Fall 2015
Econ 553 - Econometrics - Lecture I (Pt. 2) - Statistics Review
1. Distributions
In this part of the lecture, we will briey review some key statistical
concepts, inc
ECON 553, Lecture 3: The linear regression model
(cont'd)
Fall 2015
Lecture 3
1. Introduction
Suppose we are interested in estimating 0 and 1 in the following model:
Yi = 0 + 1 Xi + i
We may estimate the unknown 0 and 1 by OLS:
0 = Y 1 X
1 =
i
(Xi X )(Y
log using "Assignment Q7.txt"
codebook male hsgpa
/ part (1): 136 people answered male, 119 answered hsgpa
/part (2): It is not random. because people with lower GPA are not likely to anwser the survey,
/therefore , the sample has higher high school gpas
log using "Assignment 1.log"
*-
*Assignment 1 Econometrics 553
*Name: Yazhi He
*This file contains my solutions to question 6 and 7 of the Assignment 1
use "Alabama.dta",clear
save"Alabama.dta" ,replace
sum score89 pcy
* anwser for part (a)
display 3613.8
Syllabus for ECON-553-01 - Econometrics
Georgetown University Department of Economics Fall 2015
Professor: Mary Ann Bronson
Lecture: Wednesday 6:30-9:00pm in ICC 115
Office: ICC 554
Office Hours: Thursday, 5:00-6:00pm
Email: [email protected]
TA: Madh
ECON 553 Lecture 4: Functional Form and
Dummy Variables
Fall 2015
Lecture 4
1. Functional Form of Regression Models
In this course we cover linear regressions.
By linear we mean that they are linear in parameters
They may or may not be linear in the X s
T
Economics 553
Fall 2015
Problem Set 2
Due Monday Oct. 5, at 5 PM (TA Mailbox)
Please turn in the entire, completed HW. Only Question 5 will be graded.
Question 1: True/False/Explain
1. When the estimated slope coefficient in the simple regression model,
i
Problem Set 1
Economics 553
Fall 2015
Question 1: True, False, Explain.
1. The probability of an outcome is the number of times that the outcome occurs in the long
run.
False, the probability of an outcome is the number of times that the outcome occurs
di
1. The probability of an outcome
A) is the number of times that the outcome occurs in the long run.
B) equals M N, where M is the number of occurrences and N is the population size.
C) is the proportion of times that the outcome occurs in the long run.
D)
1
Prof. scar Jord
Due Date: Thursday, April 24
Problem Set 2
ECONOMETRICS
STUDENTS NAME:
Multiple Choice Questions [20 pts]
Please provide your answers to this section below:
6.
7.
8.
9.
10.
1.
2.
3.
4.
5.
1)
An estimator is
a.
b.
c.
d.
an estimate.
a for
1
Prof. scar Jord
Problem Set 3
Due Date: Thursday, May 8
ECONOMETRICS
STUDENTS NAME:
Multiple Choice Questions [20 pts]
Please provide your answers to this section below:
1.
6.
2.
7.
3.
8.
4.
9.
5.
10.
1) When the estimated slope coefficient in the simpl
*_Recitation 1- Econometrics_
*_AUTHOR- Nishtha Kochhar_
*_DATE- September 16, 2015_
*_Summary points we covered in today's lecture.
* STATA IS ALL ABOUT LEARNING BY DOING
/*_ Basic points_
- Download stata - Georgetown on the hub
- Set a course directory
. sysuse auto.dta
des
tab foreign
sum price
summarize price
sum price,detail
save "auto dta", replace
browse
replace price = 0 if price = 4749
*replacing price by zero -since it has no value in the markert when price was 4749
tab make foreign
tab foreig
Solution to all problems- ATS UCLA
http:/www.ats.ucla.edu/stat/stata/
Really helpful (and fun depending on how nerdy you are) STATA blog
http:/stataproject.blogspot.in/
Useful course for when you have time or you can look up some modules as and when you n
Name (Please Print): _Red ID:_
EC 351 : Econometrics I
TEST 2
March 15, 2011
100 points
Instructions: Provide all answers on this exam paper. You must show all work to receive credit.
You are allowed to use your one page cheat sheet on this exam, provided
Econometrics - Lecture I
Mary Ann Bronson
Oce Hours: Thursday 5:00-6:00 PM, ICC 554
Fall 2015
Fall 2015
Econ 553 - Econometrics - Lecture I
1. What is Econometrics?
What is ECONOMETRICS?
Application of statistical methods for analyzing and predicting
econ
Midterm Practice
You have collected data on the yearly hours worked by a sample of women on a given year.
1. When dividing your sample into married and unmarried women, the information shown in
the table is found.
Marital status
Average yearly hours
Y
Mar
Midterm Practice
Consider the wage equation
log(wage) = 0 + 1 Educ + 2 Educ2 + 3 Exper + 4 Exper2 + 5 Hrswk +
and the following wage equation estimates:
1. Suppose you wish to test the hypothesis that a year of education has the same eect on
log(wage) as
/ Question 5
save "/Users/Administrator/Desktop/problem set 2 question 5.dta"
C:\Users\Administrator\Desktop
log using "Homework set 2.log"
count if ca=1 /99 Californians are from this sample
su colgpa if ca=1 / Mean=3.528547 Std. Dev.=.2569961 Min=2.8 M
Introduction
ECON 122-20
Summer 2015
Georgetown University
What is econometrics?
Definition: the use of statistical methods to analyze
economic data.
Goals of Econometrics
Estimate the relationship between economic variables:
Exchange rates and imports
Mid Term Exam Part B, Fall 2012
1
ECON 122: Introduction to Econometrics
Mid-Term Exam. Part B
PRINT YOUR NAME HERE:
WRITE YOUR STUDENT ID NUMBER HERE:
SIGN YOUR NAME HERE:
Instructions
This part of the exam will last for 1 hour. There are a total of 10 q
3.2. Each random draw
probability Pr
Yi
from the Bernoulli distribution takes a value of either zero or one with
(Yi 1) p
and Pr
(Yi 0) 1 p.
The random variable
Yi
has mean
E (Yi ) 0 Pr(Y 0) 1 Pr(Y 1) p,
and variance
var(Yi ) E[(Yi Y ) 2 ]
(0 p) 2 Pr(Yi
Econ 553 Lecture 8, Part II: Experiments and Quasi-Experiments
Fall 2014
0. Introduction
In many fields (e.g., psychology, medicine) causal effects are
estimated using experiments
0. Introduction
In many fields (e.g., psychology, medicine) causal effects