Question 1:
Madison Seniors Care Center is a nonprofit organization that provides a variety of health services to the elderly. The center is organized into a
number of departments, one of which is the Meals-On-Wheels program that delivers hot meals to sen
University of Maryland
Department of Economics
Econ 423 Econometrics II
Prof. Guido Kuersteiner
Problem Set 1 - Solutions
4.2
(i) H0: 3 = 0. H1: 3 > 0.
is .00024(50) = .012. To obtain the
(ii) The proportionate effect on salary
percentage effect, we mult
Tobit Model:
Corner Solution Responses
Prof: Pablo DErasmo
UMD
November 27, 2012
Prof: Pablo DErasmo (UMD)
Tobit Model
November 27, 2012
1 / 14
Tobit Introduction
Another important limited dependent variable is a corner solution response
Such a variable i
Instrumental Variables Estimation
Prof: Pablo DErasmo
UMD
October 31, 2012
Prof: Pablo DErasmo (UMD)
Instrumental Variables Estimation
October 31, 2012
1 / 23
IV: Introduction
Some problems of omitted variable bias cannot be solved by using panel data
and
Large Sample Properties of OLS in Time Series
Prof: Pablo DErasmo
UMD
September 12, 2012
Prof: Pablo DErasmo (UMD)
Large Sample Properties of OLS in Time Series
September 12, 2012
1/1
Stationarity and Weakly Dependence
A time series is a collection of obs
Time Series Analysis
Prof: Pablo DErasmo
UMD
September 5, 2012
Prof: Pablo DErasmo (UMD)
Time Series Analysis
September 5, 2012
1 / 26
Time Series Analysis (Ch 10, 11 and 12)
Outline of this Section (Classes 2-6)
1
The Classical Regression Model (OLS) usi
WELCOME TO
ECONOMETRICS II
ECON 423
M-W 2 - 3.15
Prof: Pablo DErasmo
UMD
August 29, 2012
Prof: Pablo DErasmo
WELCOME TO ECONOMETRICS II ECON 423M-W 2 - 3.15
Instructor: Pablo DErasmo
B.S. Economics UADE (1999, Argentina)
Ph.D. Economics Univ. of Texas at
Binary Dependent Variables:
Probit and Logit Models
Prof: Pablo DErasmo
UMD
November 27, 2012
Prof: Pablo DErasmo (UMD)
Probit and Logit Models
November 27, 2012
1 / 20
Introduction
Qualitative information generally comes in the form of binary information
Running head: FOLLOW PAPER INSTRUCTIONS
Follow Paper Instructions
Institution
Name
1
FOLLOW PAPER INSTRUCTIONS
2
Follow Paper Instructions
Globalization refers to the process of integration and interaction among people,
governments, and communities of dif
Simultaneous Equations Models (SEM):
Identification and Estimation
Prof: Pablo DErasmo
UMD
November 26, 2012
Prof: Pablo DErasmo (UMD)
Simultaneous Equations Models (SEM): Identification and Estimation
November 26, 2012
1 / 19
Simple Example: Supply and D
Pooling Cross Sections Across Time
and Introduction to Panel Data
Prof: Pablo DErasmo
UMD
October 3, 2012
Prof: Pablo DErasmo (UMD)
Pooling Cross Sections Across Time and Introduction to Panel Data
October 3, 2012
1 / 19
Extending the set of possibilities
University of Maryland
Department of Economics
Econ 423 Econometrics II
Prof. Guido Kuersteiner
Final Solutions (2015)
Instructions: This is a 120 minutes closed book exam. Answer all questions in any order.
Questions are divided into sub-questions. Each
Chapter 13: Game Theory and Competitive Strategy
CHAPTER 13
GAME THEORY AND COMPETITIVE STRATEGY
REVIEW QUESTIONS
1. What is the difference between a cooperative and a noncooperative game? Give an
example of each.
In a noncooperative game the players do n
Trends and Seasonality
Prof: Pablo DErasmo
UMD
September 10, 2012
Prof: Pablo DErasmo (UMD)
Trends and Seasonality
September 10, 2012
1 / 24
Trending Time Series
Many economic variables have a common tendency of growing over time: a
time trend
Ignoring th
Using Highly Persistent Time Series
Prof: Pablo DErasmo
UMD
September 12, 2012
Prof: Pablo DErasmo (UMD)
Using Highly Persistent Time Series
September 12, 2012
1 / 17
Unfortunately, many economic time series cannot be characterized by weak
dependence
In t
Panel Data: Fixed Effect Model
Prof: Pablo DErasmo
UMD
October 10, 2012
Prof: Pablo DErasmo (UMD)
Panel Data: Fixed Effect Model
October 10, 2012
1 / 11
Panel Data Models
Have T observations on i = 1, . . . , N cross sectional units T N
We are interested
Serial Correlation
Prof: Pablo DErasmo
UMD
October 1, 2012
Prof: Pablo DErasmo (UMD)
Serial Correlation
October 1, 2012
1 / 12
Th 10.1 (unbiasedness of OLS) assumed nothing about serial correlation in
the errors
Last two classes, we relaxed strict exogene
Instrumental Variables: Tests
Prof: Pablo DErasmo
UMD
November 7, 2012
Prof: Pablo DErasmo (UMD)
Instrumental Variables: Tests
November 7, 2012
1 / 12
Testing for Endogeneity: Intro
The 2SLS is less efficient than OLS when the explanatory variables are
ex
Panel Data: Random Effects Model
Prof: Pablo DErasmo
UMD
October 17, 2012
Prof: Pablo DErasmo (UMD)
Panel Data: Random Effects Model
October 17, 2012
1 / 12
Introduction: RE Model
The model we want to estimate is:
yit
=
f (xit ) + noise
We adopt a differe
Running head: MANAGERIAL ANALYSIS
Managerial Analysis
Institution
Name
1
MANAGERIAL ANALYSIS
2
Managerial Analysis
Statistical process control (SPC) charts apply to a wide number of sectors such as the
health care applications. However, its widespread use