178.307 Application #1
Semester 1
1. (PRN Practice Problem 2.1) Assume that the Manufacturing of cellular
phones is a perfectly competitive industry. The market demand for cellular
phones is described by a linear demand function
QD =
6000
50P
9
:
Assume t
178.307
Collusion
and
horizontal
agreements
by Massimo
Motta
Simona
Fabrizi
What should
be legal,
what illegal?
Standards of
proof
Ex-ante
competition
policies
against
collusion
Ex-post
competition
policies
against
collusion
178.307
Collusion and horizont
178.307
Collusion
and
horizontal
agreements
by Massimo
Motta
178.307
Collusion
and
horizontal
agreements
by Massimo
Motta
178.307
Collusion and horizontal agreements
by Massimo Motta
Simona
Fabrizi
What should
be legal,
what illegal?
Standards of
proof
Pr
178.307
Collusion
and
horizontal
agreements
by Massimo
Motta
Simona
Fabrizi
What should
be legal,
what illegal?
178.307
Collusion
and
horizontal
agreements
by Massimo
Motta
178.307
Collusion and horizontal agreements
by Massimo Motta
Simona
Fabrizi
What s
COMPARISON BETWEEN THE
US ANTITRUST AND THE EU COMPETITION LAW
(based on the first chapter of the PhD dissertation of Valrie Rabassa)
Similarities: analogy between different rules,
efficiency and enforcement policy
Main Differences: vertical restraint, ve
Art. 101 and
102 of the
Treaty of the
European
Communities
(ex art. 81
and 82)
Simona
Fabrizi
Article 101
(ex. article
81 (ex-ex art
85)
Article 102
(ex. article
82, ex ex art
86)
Art. 101 and 102 of the
Treaty of the European Communities
(ex art. 81 and
178.307
Collusion
and
horizontal
agreements
by Massimo
Motta
Simona
Fabrizi
What should
be legal,
what illegal?
Standards of
proof
Pricing rules
and contracts
A model of
collusion
178.307
Collusion and horizontal agreements
by Massimo Motta
Simona Fabrizi
178.307
Vertical
Restraints
and Vertical
Mergers
by Massimo
Motta
Simona
Fabrizi
What are
vertical
restraints?
178.307
Vertical Restraints and Vertical Mergers
by Massimo Motta
Intra-brand
competition
Simona Fabrizi1
1 Massey University
[email protected]
Encounter RTL Compiler Synthesis
Flows
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Tra
Click to edit Master title style
Click to edit Master title style
General vs. Partial Equilibrium
Partial Equilibrium Models consider a
single market in isolation.
But often changes in one market spill over
into other markets, giving rise to income or
wea
Click to edit Master title style
Marginal Willingness to Pay style
Click to edit Master title (MWTP)
and Consumer Surplus
It is often important particularly in policy debates to be
able to quantify how consumer welfare is affected by
changing prices.
We w
178.307
Vertical
Restraints
and Vertical
Mergers
by Massimo
Motta
Simona
Fabrizi
Intra-brand
competition
Double
marginalisation
Free-riding
Other
eciency
reasons
Commitment
Problem
178.307
Vertical Restraints and Vertical Mergers
by Massimo Motta
Simona F
178.307
Vertical
Restraints
and Vertical
Mergers
by Massimo
Motta
Simona
Fabrizi
Intra-brand
competition
Commitment
Problem
178.307
Vertical Restraints and Vertical Mergers
by Massimo Motta
Inter-brand
competition
Strategic
Eects of
Vertical
Restraints
Ve
Art. 101 and
102 of the
Treaty of the
European
Communities
(ex art. 81
and 82)
Simona
Fabrizi
Article 101
(ex. article
81 (ex-ex art
85)
Article 102
(ex. article
82, ex ex art
86)
Art. 101 and 102 of the
Treaty of the European Communities
(ex art. 81 and
178.307 Firms, Markets, and Consumers
Application #5 Solutions
Simona Fabrizi
Semester 1
1. (a) We have sequential quantity competition. In stage 1, Firm 1
chooses its prot-maximizing quantity, taking into account that
rm 2 will observe her choice and rea
178.307 Exercises for maths review
March 1, 2011
This is a collection of exercises for students to work on to review their maths
skills. It may include some formal notation you have not yet seen, but which
you are likely to see either in 178.307 or in you
178.307 Mathematical Symbols
February 27, 2011
1
General mathematical symbols
=
:=
=
+
:, /
>
<
x
n
x
ab
|x|
f :AB
f : a B
2
equal
equal by denition
unequal
approximately equal
addition operator (plus)
substraction operator (minus)
multiplication operator
178.307
Multivariate functions and
Optimization
March 1, 2011
1
Functions of Several Variables and Constrained
Optimization
1.1
Partial derivatives
Most economic problems involve more than just one variable. You optimize your
consumption bundles over sev
178.307 Solutions exercises on maths review
March 1, 2011
4
Equations with one Unknown Variable
Exercise 4.1
a)
x=
15
3
2
x=
b)
Exercise 4.2
a)
x = 64
;
c)
x=5
x= 1
3
x= 1_x=2
;
x 2 f 2; 1; 1; 2g
x=0_x=3
x= 3_x=3
2
x2
1; 0; 3
;
b)
d)
f)
h)
j)
l)
n)
x = lo
178.307 Rules of Dierentiation
March 1, 2011
1
The concept of a derivative
The coe cient a of a linear function f (x) := ax + b with a; b 2 R is typically
called the slope of the function. It tells by how many units f (x) increases if
the argument x is in
178.307 More exercises for maths review
March 1, 2011
Please use the collection of mathematical symbols and your maths knowlegde
to solve the following exercises.
11
Functions in Several Unknown Variables and
Constrained Maximization
Exercise 11.1 Suppose