ECONOMETRICS II - ECON 5360
CENSORED (TOBIT) REGRESSION MODEL
Question: Whats the dierence between these two graphs? (see whiteboard)
Truncated Random Variable
(Greene, Theorem 19.1) Density of a Truncated Random Variable
If a continuous random variable x
ECON 5350 Midterm Exam
Spring 2008
Panel Data (100 pts). Consider the following panel data model
yi;t =
i
+ x0 +
i;t
i;t
where i = 1; :; n, t = 1; :; T and one of the following four assumptions hold:
2
i
is an unknown parameter and
i;t
i:i:d:(0;
i
is an u
ECON 5360 Solutions to the Midterm Exam
Spring 2009
Panel Data (100 pts). Consider the following two-way panel data model
yi;t =
i
+ x0 +
i;t
t
+
i;t
where i = 1; :; n, t = 1; :; T and one of the following four assumptions hold:
1.
and
i
t
are unknown par
ECON 5360 Midterm Exam
Spring 2009
Panel Data (100 pts). Consider the following two-way panel data model
yi;t =
i
+ x0 +
i;t
t
+
i;t
where i = 1; :; n, t = 1; :; T and one of the following four assumptions hold:
1.
i
and
t
are unknown parameters and
i;t
i
ECON 5360 Final Exam Spring 2013
1. Systems of Equations (50 pts). Consider the following structural simultaneous equation model:
y1;t
=
x xt
+
y2;t
=
w wt
1 y2;t
+
z zt
+
+
1;t
2 y1;t
+
2;t
where all variables are in deviation-from-mean form, the vector
Hausman Taylor model
1
1
Fixed and Random eects - Review
1.1
Fixed eects (FE)
In the xed eects model, we follow panel with subgroups i = 1, ., n throughout time
t = 1, ., T .
yit = i + xit +
it ,
(1)
which we can easily estimate by time averaging the yit
Outline
Introduction
Finite Distributed Lags
Innite Distributed Lag
Distributed Lag Models
Kevin Berry, Sichao Wei
advised by
Professor David Aadland
Department of Economics and Finance
University of Wyoming
April 18, 2013
Kevin Berry, Sichao Wei
Distribu
When to use?
Data
What we are going to do?
Poisson and Negative Binomial Regressions: Applications
Jacob Hochard and Ramjee Acharya
(04-23-2013)
When to use?
Data
What we are going to do?
What type of data? (e.g occurence of events, integer rates)
What ty
4/30/2013
Count Data Models
Count Data Models
What is Count Data Model?
Very often data take the form of non-negative
integer values such as number of children,
number of accidents, visits to doctor, or number
of students. Count Data Model exploits this
ECON 5350 Midterm Exam Spring 2007
1. Generalized Least Squares (25 pts). Consider the following partitioned regression model:
Y1 X1
1
= +
Y2
X2
2
where
2
1 In1
=
0
(1)
0
2 In2
2
is the variance covariance matrix of the error terms. Find the formu