Welcome
to Rober Martínez-Espiñeira's
ECON 101:15 Webpage!
ECON 101:15 Introductory Microeconomics (2008-09)
Instructor: Roberto Martínez-Espiñeira (305 Nicholson Hall 867-5443, rmespi@stfx.ca)
Last updated on DEC-4
Note: No animals were hurt during the preparation of this course
Office Hours
Timetable and Course Outlines
Messages check frequently
Lecture Slides
QUIZ 1 QUIZ2 October Test DECEMBER
exam QUIZ3 all coming soon …really soon J
Homework
EXCEL
MEDIA
How does Rober count weeks???
MON 1:00-2:00
TUE 1:30-3:30
WED 4:00-5:00
THU 1:30-3:30
Phone (5443) or email to arrange an appointment if you cannot make any of the above times.
Why are textbooks so cheap, or are they? (Planning for Obsolescence. Not everything should last forever.)
DECEMBER FINAL
coming soon
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WEEK 1 |
TUE |
SEPT 9 |
Buy the textbook and read
the first 2 chapters in preparation for WEEK 1 |
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THU |
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Download the course outline
from the link above and consider proposed changes to the policies therein |
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WEEK2 |
TUE |
SEPT 16 |
Read Chapters 2 and 3 and
make sure you go through the mathematical note (on page 25 of Ch. 1) in
preparation for next class |
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THU |
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WEEK3 |
TUE |
SEPT 23 |
A video contest: The Fraser Institute is hosting a new Student
Video Contest and students are eligible to win $10,000 in cash and
electronics prizes. The topic is: Incentives Matter - Fixing
Health Care in Read Chapters 3 and 4. Read
the instructions below and download the excel file and pdf instructions
below, complete the PPF exercise, print it, and bring it to class on TUE WEEK
4, as explained in the EXCEL FILES section below. |
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THU |
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When I ask you to write
down your “names” in class, I obviously mean your full names and
surnames. Otherwise your work will be deemed “anonymous” and will
not be graded. This is a practice test (SEPT24)
for you to do online in preparation for QUIZ1 |
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WEEK4 |
TUE |
SEPT 30 |
Remember to bring EXCEL
assignment on the PPF |
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THU |
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QUIZ1 Bring dark pencils (and erasers) and make sure
you will know your Student ID number. There will be some multiple choice
questions and some analytical and short answer questions. Quote of the week: The logic of comparative advantage highlighted
something that most men—except economists—have found it hard to
get their heads around: there is no reason to believe that men were
breadwinners because they were any good at it. They might simply have been
breadwinners because getting them to help around the house would have been
even worse. Tim Harford in The Logic of Life QUIZ SOLUTIONS are posted
in the QUIZ 1 section above QUIZ MARKS ARE POSTED ABOVE |
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WEEK5 |
TUE |
OCT 7 |
Remember to bring EXCEL
exercise on Demand |
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THU |
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Remember to bring EXCEL
exercise on Supply We will be skipping
Chapters 7 and 8 but keep on reading Chapters 5 and 6 and then go on with
Chapters 9 and 10. Remember that you may want
to take advantage of the MYECONLAB tools (self-grading quizzes, practice
exercises, graphing tools, etc) you can access with the code included in your
book You can polish your
curve-inverting skills and also your calculation of equilibrium price and
quantities with this
file we used today in class |
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WEEK6 |
TUE |
OCT 14 |
Remember to bring EXCEL
exercise on Market Equilibrium |
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THU |
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Remember to bring EXCEL
exercise on CS and PS…. Notice that the one on Elasticity is due on
WEEK 7 instead now |
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WEEK7 |
TUE |
OCT 21 |
Remember to bring EXCEL
exercise on Elasticity This is a practice test (OCT21)
to help you prepare for the MIDTERM |
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THU |
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MIDTERM |
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WEEK8 |
TUE |
OCT 28 |
See posted midterm
solutions, make sure you start reading the chapters on production and costs Midterm grades are now in
BANNER. They include the multiple choice (75), the written part (25) and a
touch up (max of 6) from yesterday’s exercise. Those of you who got
over 99 will not see it for now, but the extra points will add to your
average in the end. I am quite disappointed
with these marks and I suspect that some of you will be too. Remember
however, that there is still time to bring them back up, since the points
from homework and quizzes are not included in the posted mark, but will be
added to the final average calculation in December. These components tend to
be more favorable to most of you than what you now see in BANNER. |
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THU |
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See New Excel file on
taxes, due next week |
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WEEK9 |
TUE |
NOV4 |
Bring excel file on taxes |
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THU |
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Bring excel exercise on
cost functions See solutions for excel on
cost functions |
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WEEK10 |
TUE |
NOV11 |
NO CLASSES: do some
reading! |
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THU |
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Bring excel file on costs This practice quiz (NOV13th)
will help you prepare for QUIZ2 on Tuesday |
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WEEK11 |
TUE |
NOV18th |
QUIZ2 Bring dark pencils
(and erasers) and make sure you will know your Student ID number. There will
be some multiple choice questions and some analytical and short answer
questions.
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THU |
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WEEK12 |
TUE |
NOV 25th |
Bring excel on profit
maximization under perfect competition |
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THU |
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Do not miss the talk by the Deputy
Governor of The Bank of Canada at 2:15 This is a big multiple choice practice test. There
is no need to do it all at one ;) |
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WEEK13 |
TUE |
DEC 2nd |
Bring excel on profit maximization for monopolists QUIZ3 Bring dark pencils (and
erasers)
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Check timetable for final exam |
LECTURE SLIDES (only updated links will appear in regular font as we go along)
MICRO
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Appendix: The Language of Graphs |
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Homework
EXCEL files (Ignore this section until we go through this in class)
Submission of this files will make up 5% of the course mark (one third of the 15% coursework component)
If you do need to use the computers at STFX you can still use MACROS with excel. Just go to TOOLS, SECURITY, then MACRO SECURITY (towards the bottom) and set it to LOW. Then restart your Microsoft excel and you will have the macros running!!! So just ignore all the instructions I gave to people who do not own a computer! and follow the general instructions with macros.
Problems in Microeconomics
is a set of practice problems and interactive lecture displays for students and
faculty in introductory courses in microeconomics. The problems were written by
Byron W. Brown, Professor of Economics at
If you need it, you can read the instructions for
these on:
http://www.bus.msu.edu/econ/brown/pim/
I suggest that you use the method of trial and error a couple of times before you ever use the GOAL SEEKING tool to find your answers. This will help you get a better understanding of the economics behind the answers!.
It is easier and safer to use EXCEL to download the files and reopen them from EXCEL. Directly double-clicking from NETSCAPE NAVIGATOR is fine, but directly double-clicking from MICROSOFT EXPLORER is normally problematic and sometimes downright catastrophic!!!
Now everyone can use macros. After lowering macro security levels and restarting Microsoft Excel, click the option "enable macros" when asked. It is better to read the PDF instruction files (you might want to print them, take notes on them and use them for further study). Most of the trouble people find with these exercises comes from not reading the instructions on the PDF file. Since it is not very difficult to work out the problems, many students stop the practice of reading the instructions before starting the work. You will save time and learn more if you keep on using the instructions, though. Many of you will find it convenient to jot their answers in the margin of the printed version of the questions, then enter the answers on the Answer Sheet all at once.
With macros, just click on SET THE BASELINE to get
the original values defining the graphs. Often the questions require you to
start fro m the baseline values: check that!
For verbal, as opposed to numerical answers, use the Answer Bin, and copy and
paste the correct option. This is because the computer will only accept very
specific wording, for example, if the answer to a question is YES, answering
"oh, I really think so" will not work. :)
When submitting a test for grading, when opening the file (with macros enabled) select the option TAKE A TEST, you then have to logon with your full name and use as "student number" the last 4 digits of your STFX student ID. Then fill in the answers in the answer sheet (use the "answer bin" to get verbal answers!) and when they show all CORRECT, use the option SAVE ANSWER FILE to name and save the answers file in your compute (H drive). You can now print the answers file (which contains one single page). It should show your full name, last 4 digits of your ID plus a secretly generated code for my use.
You should submit the work in class by the deadline. Only in pre-authorized exceptional cases will I accept an e-mailed sheet. If I have agreed to let you use this option, make sure you use the SAVE ANSWERS FILE option for the answer sheet , save the file in your PC and then email an attachment of that file and send it, saving the copy of the message in your INBOX. If you do not do this and send me the regular excel file, several bad things will happen:
- your answers might not be there (you did not
"save the answer file", so perhaps your answers have not been ever
saved)
- I cannot print your secret code, so I cannot tell if you are simply
e-mailing someone else's job
- I will not dare open the file, because the regular file is susceptible of
sending me all kinds of viruses from your PCs
You will receive ONE point per sheet as long as all the answers are correct, because you should be able to try again and again (or use goal seek) to get all the answers CORRECT. In exceptional cases when this is not possible to majority of students (due to a computer bug, for example) I will accept one or two answers wrong, otherwise the sheet will count ONLY if ALL answers show CORRECT.
In any case, the whole point of using these files is for you to become very familiar with the economic processes involved to achieve a good mark in the mid-term and the finals.
Production Possibility
Frontier (PDF
instructions) due on TUE WEEK 4
(note that there is a little bug in this file: when you use GOAL SEEK, you have to delete the "=" at the font of the =$I$20 if you want to choose the "address of the variable to change" by clicking on it). This might just be happening on my computer, but just in case, I thought I'd tell you.)
Demand
(PDF
instructions) due on due
on TUE WEEK 5
(please
ignore the fact that the author of this files uses “demand”
sometimes when he should have meant “quantity demanded”…do
not let this confuse you!)
Supply
(PDF
instructions) due on due on THU WEEK 5
Equilibrium
(PDF
instructions) due on TUE WEEK 6
(baseline is
Income $20,000 Ptacos $6.00 Pwine $20.00
Psauce $3.00 Plabor $5.00 tax $0.00)
Consumer Surplus and Producer Surplus (PDF instructions) due on THU WEEK 6
Elasticity (PDF instructions) due on TUE WEEK 7
Taxes and welfare
(PDF instructions)
SUBMIT during class on TUE WEEK9
Solutions:
Costs (PDF instructions)
due on THU WEEK 10
Calculating
cost functions
(due on Thursday Week 9 in class) there are blue empty cells to fill in with
your calculations and 4 questions in each of the 2 worksheets. PRINT your
filled in answers and bring them to class.
These
would be more or less the solutions.
Note that I inserted in my file formulae so that I would not have to punch all
the calculations one by one. Having done this calculations would have been tedious
for you, but also useful to help you understand how costs evolve given constant
input prices and changing returns (marginal and to scale). However, once you
have done that a couple of times you can use the built-in formulae to check
what happens when you change the prices of inputs.
Note
that I have also asked excel to calculate, for your viewing pleasure, the AVC
and AFC as separate columns from the ATC ones.
Profit under
competition (PDF
instructions) due on TUE Week 12
Solutions for the
graphed part. The total profit is shown here, and this is the correct printout you
were supposed to submit. The variable part of the profit (which is just the consumer
surplus) is shown here.
Monopoly (PDF instructions) due
on TUE WEEK 13 n class
You can try this last one for
practice:
Price
discrimination (PDF instructions) due on ??? in
class make sure you read the instructions in the PDF file for the last two
questions!!! Otherwise they are tricky!
Consumer Surplus and
Producer Surplus (PDF instructions) SUBMIT on ???
This will remind us about the way in which we measure the efficiency of different
allocations of resources, for example when we have a monopoly creating a
deadweight loss.
See solutions above for the graphed parts of the file
The labour market (PDF instructions) SUBMIT during class on ???
I start from Week 0 (Wk0) every term. This is the week in which we have the first class. This week contains often less than 3 lectures. Wk 1 starts the first Monday after Wk0. The term has 12 weeks (plus Wk0)
You can find me here:
mailto:rmespi@stfx.ca
Department of Economics
NOVA SCOTIA
Tel: 1-902 867 5443