Eco 58.1
N.S. Revankar
Assignment #1
1.
Ex)
Two-Variable Regression
, (Chapters 11 and 12)
a) What is the basicrequirement to be satisﬁed by x and u if
y=a+bx+u (1.1)
is to be a (linear) regreSSion of y on x?
b) If you rewrite (1.1) as
x=c+dy+v (1.2)
ECO 581 g N.S. Revankar
Assignment #4 .
Mutiple Regression: Dummy Variables and Interactions-I [Chapter 14).
l
l 1. Consider an estimated Engel Curve given by
X
y = 100.5 + 0.6x = 6.5 Dm
. where x = income, y = Food Expenditure, and
D"l = 1 if Male
= 0 if
0.39911? 0? .1-4 - Consult the ._
mien-om
«It is préﬁtice xlifrqm the list of potential regression the
' ' ' ' ' ' ' ' ' simplgregression 9f."
' (c) .“If'corr on. x2.) = 1'12 s o in thé§a§3919
(d) If- con-(x131) =-r.2 = o, and ifwe have; -
multipl