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9 May 2009

Youssef, Ahmed H. and Abonazel, Mohamed R. (2009): A Comparative Study for Estimation Parameters in Panel Data Model. Published in: InterStat Journal , Vol. 2009, No. May, No. 2 (9 May 2009): pp. 1-17.

11 April 2011

Mousa, Amani and Youssef, Ahmed H. and Abonazel, Mohamed R. (2011): A Monte Carlo Study for Swamy’s Estimate of Random Coefficient Panel Data Model. Published in: InterStat Journal , Vol. 2011, No. April, No. 4 : pp. 1-12.

11 June 2014

Youssef, Ahmed H. and El-Sheikh, Ahmed A. and Abonazel, Mohamed R. (2014): Improving the Efficiency of GMM Estimators for Dynamic Panel Models. Published in: Far East Journal of Theoretical Statistics , Vol. 47, No. 2 (May 2014)

October 2014

Youssef, Ahmed H. and El-Sheikh, Ahmed A. and Abonazel, Mohamed R. (2014): New GMM Estimators for Dynamic Panel Data Models. Published in: International Journal of Innovative Research in Science, Engineering and Technology , Vol. 3, No. 10 (October 2014): pp. 16414-16425.

19 March 2020

Youssef, Ahmed H. and Abonazel, Mohamed R. and Ahmed, Elsayed G. (2020): Estimating the Number of Patents in the World Using Count Panel Data Models. Published in: Asian Journal of Probability and Statistics , Vol. 6, No. 4 (19 March 2020): pp. 24-33.