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(Videos)
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UBC, ECONOMICS 527
2014 MIDTERM EXAMINATION
Suggested solutions
1. Let Y and X be two random variables with second moments.
(a) First, note that
E (Y E(Y X) = EE ( Y E(Y X) X)
= E (E(Y X) E(Y X)
= 0.
Hence, we can write
Cov(Y E(Y X), E(Y X) = E [(Y
January 7, 2016
LECTURE 1
REVIEW OF GMM FOR LINEAR MODELS
Definition and asymptotic properties
Suppose that an econometrician observes the data cfw_(Yi , Xi0 , Zi0 ) : i = 1, . . . , n, and the model is given by
= Xi0 + Ui , and
Yi
E (Zi Ui )
=
0,
(1)
whe
UBC, ECONOMICS 527
2015 MIDTERM EXAMINATION
You have 80 minutes. Answer all questions.
1. Consider a partitioned regression Y = X1 1 + X2 2 + U , where 1 Rk1 and 2 Rk2 are
unknown parameters, X1 and X2 are n k1 and n k2 matrices of regressors respectively
UBC, ECONOMICS 527
2014 MIDTERM EXAMINATION
You have 80 minutes. Answer all questions.
1. Let Y and X be two random variables with second moments.
(a) (10 points) Show that E(Y X) and Y E(Y X) are uncorrelated.
(b) (5 points) Show that V ar(Y ) V ar(Y E
UBC, ECONOMICS 527
2016 MIDTERM EXAMINATION
You have 80 minutes. Answer all questions.
1. Consider a linear regression model Y = X + U , where X is the n k matrix of regressors,
and is the kvector of unknown parameters. Let W be another n k observable ma
UBC, ECONOMICS 527
2016 MIDTERM EXAMINATION
Suggested solutions
1. (a)
= (W 0 X)1 W 0 Y
= (W 0 X)1 W 0 (X + U )
= + (W 0 X)1 W 0 U
E(X,
W ) = E[ + (W 0 X)1 W 0 U X, W ]
= + (W 0 X)1 W 0 E[U X, W ]
Use the condition E[U X, W ] = 0
=
Use the LIE,
= E
Part 2: Using Information Technology
Chapter 4
Hardware and Software
MIST 2610 Summer 2016
Chapter #4  1
of 39
Technology What do YOU use?
Mobile what is on your phone?
Laptop or Desktop What is on Hard drive?
What Cloud are you using?
What are you s
Part 1: MIS and You
Chapter 1
Setup twitter
Pipl
linkedin
Information Systems and You
MIST 2610 Summer 2016
Chapter #1  1
MIST 2610 Summer 2016
Chapter #1  2
of 36
Running Case
Josie needs a strategy to improve services at
Caf Italiano
The caf is set
Introduction to
Communication Theory
CMNS 110
Jan. 9
What is communication?
In a group, discuss your definition of communications and share your
ideas with the rest of the class.
How did you come to that conclusion?
Are all of you correct with your def
Visuals and nonverbal
communication
CMNS 110
Jan. 18
Nonverbal communication
Kinesics:body positon and body motons including the face. Our
bodies also communicate informaton to others about ourselves and
how we see ourselves. Posture, gestures, eyes; eve
Spring 2017
ECON 202: Principles of Macroeconomics (3 Credits)
Lectures
1: M 12:50 2:20 pm and W 12:50 2:20 pm
2: M 2:25  3:55 pm and W 2:25 3:55 pm
(Weekly Lecture Hours 3 hr, Total Weeks: 14)
Instructor: William Shen ([email protected])
Office
Econ 101 Review Chapter 1
Key Words:

Economics: The study of the use of scarce resources to satisfy unlimited human wants.
Factors of Production: Resources used to produce goods and services; frequently divided into the basic
categories of land, labour
Econ 101 Review Chapter 7
Key Words

Firm: selfcontained, profit maximizing entity, that produces and sells goods and services.
Single proprietorship: A firm that has one owner who is personally responsible for the firms actions
and debts. The owner is
Econ 101 Review Chapter 11
Key Words


Differentiated Product: A group of commodities that are similar enough to be called the same product
but dissimilar enough that all of them do not have to be sold at the same price. Example: smartphones.
Concentra
Econ 101 Review Chapter 9
Key Words:

Market Structure: All features of a market that affect the behaviour and performance of firms in that
market, such as the number and size of sellers, the extent of knowledge about one anothers actions,
the degree of
Econ 101 Review Chapter 4
Key Words:

Price elasticity of demand (): A measure of responsiveness of quantity demanded to a change in the
commoditys own price.
Inelastic Demand: Following a given percentage change in price, there is a smaller percentage
Econ 101 Review Chapter 10
Key Words

Monopoly: A market containing a single firm.
Monopolist: A firm that is the only seller in a market.
Entry Barrier: Any barrier to the entry of new firms into an industry an entry barrier may be natural or
created.
Econ 101 Review Chapter 9
Key Words:


Market Structure: All features of a market that affect the behaviour and performance of
firms in that market, such as the number and size of sellers, the extent of knowledge
about one anothers actions, the degree
Econ 101 Review Chapter 2
Key Words:

Normative Statement: A statement about what ought to be as opposed to what actually is. Depend on
value judgements. Not testable.
Positive Statements: A statement about what actually is (was, or will be) as opposed
Econ 101 Review Chapter 6
Key Words

Utility: The satisfaction that a consumer receives from consuming some good or service
Total Utility: The total satisfaction resulting from a consumption of a given commodity by a consumer.
(All units of the good)
Ma
Econ 101 Review Chapter 12
Key Words

Productive efficiency for the firm: When the firm chooses among all available
production methods to produce a given level of output at the lowest possible cost.
Productive efficiency for the industry: When he indust
Econ 101 Review Chapter 3
Key Words:

Quantity Demanded: The amount of a good or service that consumers want to purchase during some
time period.
Ceteris paribus: Holding all other variables constant, other things being equal
Demand Schedule: A table sh
Econ 101 Review Chapter 8
Key Words

Technical Efficiency: When a given number of inputs are combined in such a way as to maximize the
level of output. Minimizing the quantity of all inputs to produce a given output.
Cost Minimization: An implication of
Econ 101 Review Chapter 5
Key Words:

General Equilibrium Analysis: The analysis of all the economys markets simultaneously, recognizing
the interactions among the various markets.
Partial Equilibrium Analysis: The analysis of a single market in isolati
Game Theory
Sam Hwang
January 17, 2017
1 / 125
Introduction to Game Theory
I
I
So far we have been only concerned with situations in which
individuals wellbeing depends only on the choices she makes
Now we want to study situations in which
1. Multiple in
Problem Set I
Intermediate Microeconomics 2
January 11th, 2017
Sam Hwang1
Submit your solution individually. The deadline is January 17th, Tuesday at the beginning of the class. Throughout this problem set, We are always going to assume that all
decision
Choice Under Uncertainty
Sam Hwang
January 3, 2017
1 / 116
Welcome to Econ 303002
I
Instructor: Sam Hwang ([email protected], IONA 205)
I
TA: Hong Chui ([email protected])
I
Lecture: Tuesdays and Thursdays 12:30 to 14:00
I
TA session: Thursdays 5: