TY  - BOOK
AU  - Tareq Abdulaziz Aldoub
AU  - Ahmed Hassen Youssef , 
AU  - Elhoussainy Abdelbar Rady , 
TI  - Statistical properties of estimators for variable coefficients models / 
PY  - 2012///
CY  - Cairo : 
PB  - Tareq Abdulaziz Aldoub , 
KW  - Generalized least square
KW  - Generalized method of moment
KW  - Simple Panel Data
N1  - Thesis (Ph.D.) - Cairo University - Institute of Statistical Studies and Research - Department of Statistics and Econometrics; Issued also as CD
N2  - The study is concerned with solving the problem of the negative variance concerning the (GLS) method and hence a comparative study of (GLS) and GMM procedures with Simple Panel Data (SPD) and Multiple Panel Data (MPD) is introduced and discussed simulated data from several models that used to compare the two procedures under different conditions of panel data such as : ample sizes , models , parameters values and standard deviation
UR  - http://172.23.153.220/th.pdf
ER  -