Chapter 2
1
Final
Lecture Notes: Chapter 2: Measuring the Macroeconomy
J. Bradford DeLong http:/econ161.berkeley.edu/ [email protected]
The Importance of Data
Economics is a social science: it
Chapter 5
1
Final
Lecture Notes: Chapter 5: The Reality of Economic Growth: History and Prospect
J. Bradford DeLong http:/econ161.berkeley.edu/ [email protected]
Before the Industrial Revolutio
Chapter 10
1
Final Candidate
Lecture Notes: Chapter 10: Investment, Net Exports, and Interest Rates
J. Bradford DeLong http:/econ161.berkeley.edu/ [email protected]
Interest Rates and Aggregate
Chapter 12
1
Final
Lecture Notes: Chapter 12: The Phillips Curve and Expectations
J. Bradford DeLong
Aggregate Supply and the Phillips Curve
Unemployment
Okuns law, which you will recall is the simple
The following graph shows the demand for and supply of loanable funds. Borrowers and lenders expect 2% inflation down the road.
5%
4%
3%
2%
1%
-1%
-2%
$4,000
$3,800
$3,600
$3,400
$3,200
$3,000
$2,800
Mat22A: Practice Exam 1
Problem 1. (20 pts) Find all solutions (if any) of the system of equations
3x1 + 3x2 + 2 + 6x3 = 3
3x1 + x2 + x3 = 1
2x1 + 4x2 + 9x3 = 4.
State clearly whether there are no sol
THE COMPLETE LEAST SQUARES SOLUTION
Following up on my previous email, the least squares formula
x = (ATp Ap )1 ATp b
where Ap is the pivot column submatrix of A. Note, however, x contains only the pi
MAT22a Midterm One
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Please write your name on the cover sheet.
Write your answers on the exam paper.
Calculators, cell phones, and other electronic devices are not allowed.
Good luck!
1. Wr