Hello, if you have any need, please feel free to consult us, this is my wechat: wx91due
ECON 2223 - Assignment 3
Part I : Problems
1. Consider the model :
Yt = ρYt − 1 + β0 + ut
State all assumptions.
(a) Derive the OLS estimator for ρ and β0 .
(b) Derive E[ρ]. Is OLS biased?
(c) Derive E[b0]. Is OLS biased?
2. Consider the model :
Yt ut
= ρYt − 1 + β0 + ut
= γut − 1 + ϵt
Does Yt − 1 satisfy the exogeneity assumption for this model? Provide the proof, and state all assumptions.
Part II : R / RStudio
This is the analysis of 10 technology stocks.
— Instructions are in the ‘Assignment3StockAnalysis.R’ file.
— Your submission must include the tables and discussion.