Homework 1
Name: _Points:_/30
1. (10 points of paper grade) Prepare a title page for your paper. It should have the format
on the attached page.
2.
3.
4.
5.
6.
Homework Assignment
(2) For your airport, call your data, and plot passengers against the trend
EC421
Homework 5 - Solution
Gulcan Cil
HOMEWORK 5 - Solution
1- Structural equations model:
S = 1 + 2 A + uS
A = 1 + 2 S + uA
The researcher is interested in estimating the eect of advertising on sales, i.e. the rst equation. If he
ts the model using OLS,
Homework 4
(Due: In-class Wednesday, 11/05/2014)
Name:
Paper Points:
/10
HW Points:
/30
1. (Paper, 10 points) In this homework you will work on the empirical model part of your airport
paper. This section follows from the conceptual model that identifies
STATAMANUAL
ECON421
September27,2013
by
WesleyW.Wilson
DepartmentofEconomics
UniversityofOregon
[email protected]
LESSON1
LearningtoUseStata:RegressionandFigures
1.INTRODUCTION
STATA is a general purpose econometrics software and is widely used by appli
Homework 4 - Key
(Due: In-class Wednesday, 11/05/2014)
Simultaneous Equations and Instrumental variables:
2. Suppose you were interested in the relationship between sales and advertising. Using a cross
section of 200 firms where sales depends only on adve
3. Which of the assumptions that are required for OLS to be BLUE is violated when the
error term is heteroskedastic? What are the consequences of estimating a heteroskedastic
model with OLS?
4. You need to test the following model for heteroskedasticity a
INTRODUCTION TO ECONOMETICS
Fall 2013
ECON 421
Instructor:
Office:
Office Hours:
Phone:
Email:
Wesley W. Wilson
PLC 470
MW 1:30-2:30, other times, by appointment. In general, I am around the
department and available for drop-in short questions.
(541) 346-
Assignment 6
EC 421
Yuxiang Wang
951377123
(a) 1. use "C:\Users\Casstial\Downloads\EITC.dta"
2. describe
. do "C:\Users\Casstial\AppData\Local\Temp\STD00000000.tmp"
. use "C:\Users\Casstial\Downloads\EITC.dta"
. describe
Contains data from C:\Users\Cassti
MIN PROJECT3
Yuxiang Wang
951377123
Part one, simulation of a binomial distribution, and confidence
intervals:
As we already know the proportion= 0.23
Theoretical prediction
Using the normal approximations function N (n*p, sqrt (n * p * (1-p) we
can get:
Summary
Aeis 112
Yuxiang Wang
951377123
Writing in the September 15, 2008, issue of plastic-bag tax, Eoin OCarroll, in the
article Industry group fighting Seattle plastic-bag tax, he reports an event which is
the American Chemistry Council, who represents
Jianzhong Wang
EC 421
Thursday 4:00 Lab
Homework 3
(a) Read Kane and Rouse (1995). What is the main question asked in this paper using the
NLS-72 data set? How do they attempt to answer this question?
The main question is that people want to know the wage
Assignment one
EC 390
Yuxiang Wang
951377123
Analyzing the economic situation of developing country-china
In order to judge the power of a country, economist always distinguish them into
two parts which are developing country and developed country. That t
Assignment 2
Yuxiang Wang
951377123
(a) The main question is that where is the land of opportunity, in other words, in
which land of United States have the greatest upward intergenerational mobility
happened and what factors influence that. They collect v
Assignment two
EC 390
Yuxiang Wang
951377123
Continue Analyzing the economic situation of developing country-china
In order to judge the power of a country, economist always distinguish them into
two parts which are developing country and developed countr
Mini project 2
Story
Yuxiang Wang
951377123
The CBA sport report (2013~2015)
During the 2013 Great cup basketball tournament, our four team, Atom, Big
ben, Cave man and Dangerous killer are all give us a surprising games! The most
popular team, the Danger
Refection report
Student name: Yuxiang Wang
Guest Speaker: Dave Lindelein
Class time: Monday&Wednesday 4 pm
What were the most interesting topics or discussion for you?
As a risk manager in Lane Transit district HR department, Dave specifically introduced
Draft One
AEIS 112
Yuxiang Wang
951377123
Plastic bag tax- the myth of environmental protection
Witches knickers, white pollution, national flowers are all the nicknames
of the typically industrial product, which people used in daily life- plastic bags.
I
1
INEQUALITY IN CHINA
Draft two
AEIS 112
Yuxiang Wang
951377123
Inequality - A Consequence of Chinese Impressive Economic Growth
In order to judge the power of a country, economist always distinguish it into two
parts, which are developing countries and d
Yuxiang Wang
Eco 421
951377123
Assignment #3
(a) The main question asked at this article is the different labor market payoff (hourly
wage) between two year and four years degree that a people have also influenced
by other factors or variables. They colle
Update report
Yuxiang Wang
Ba 316
951377123
In-class Group Progress Report
Group topic:
We choose the Tesla as the company to be researched and use it to be the topic of
class presentation program.
Group activities:
Group establishment:
The group first es
MINI PROJECR 3
YUXIANG WANG
951377123
MEAN OF DATA=134.6 STDEV OF DATA=185.07
Theoretical
MEAN OF SAMPLE SIZE 9=134.6 STDEV OF SAMPLE SIZE 9=61.69
MEAN OF SAMPLE SIZE 25=134.6 STDEV OF SAMPLE SIZE 25=37.01
Experimental (first row)
MEAN OF SAMPLE SIZE 9=16
% solid biofuels in total energy
supply
Abkhazia
Afghanistan
Akrotiri and Dhekelia
Albania
Algeria
American Samoa
Andorra
Angola
Anguilla
Antigua and Barbuda
Argentina
Armenia
Aruba
Australia
Austria
Azerbaijan
Bahamas
Bahrain
Bangladesh
Barbados
Belarus
EC421
Assignment 5
Yuxiang Wang (Casstial)
951377123
(a) 1.Importexcel"C:\Users\Casstial\Downloads\API_NY.GDP.MKTP.KD_DS2_en_e
xcel_v2 (3).xls", sheet ("Data") firstrow clear
2. reshape long y, i(CountryName) j(Year)
3. rename y GDP
4. save GDP.dta, repla
Jianzhong Wang
EC 421
Thursday 4:00 Lab
Homework 5
(a)
clear all
capture log close
set more off
cd "C:\Users\jianzhon\Desktop"
log using "EC421_Week6_Example_log", replace t
. import excel "C:\Users\jianzhon\Desktop\API_NY.GDP.MKTP.KD_DS2_en_excel_v2.xls
EC 421
Thursday 5:30 Lab
Homework
1. Read Bertrand and Mullainathan (2004). What is the main question asked in this paper?
How do they attempt to answer this question?
The question the author is asking is whether there is a racial gap in the call back rat
Jianzhong Wang
EC 421
Thursday 4:00 Lab
Homework 1
(a) Read Bertrand and Mullainathan (2004). What is the main question asked in this paper? How
do they attempt to answer this question?
The main question in this paper is Does the white-sounding names rece
University of Oregon
Department of Economics
Professor Caroline Weber
Winter 2017
Final Exam Study Questions
Economics 421
Introduction to Econometrics
Note: These study questions are provided as a study, education, and review aid only; they are
not desig
University of Oregon
Department of Economics
Professor Caroline Weber
Winter 2017
Answers to Select Study Questions: Instrumental
Variables
Economics 421
Introduction to Econometrics
3. *Consider the following population regression for men who finished a