On behalf of the Deanship of al-amarah university college , we extend our congratulations and best wishes to Dr. Adnan Daoud Muhammad Al-Athari and Dr. Haider Aliwi Shami on the occasion of issuing their scientific work.

The book is entitled: Estimating Gravity Models for E-Commerce

(This book is a summary of an aspect of the economy, which is the foreign trade of countries. In our world today, electronic commerce began to prevail after the spread of the World Wide Web, and with high development, the global market became accessible to everyone. There is no commodity or commodity that can be traded, and financial restrictions no longer stand as a barrier since they were in local currencies. If bank cards prevailed that ensured electronic payment and guaranteed banks and the global banking system, but the emergence of electronic currencies has become more accessible and more logical than before, if calculations are performed quickly and with high accuracy, and they are secured from all electronic penetrations, and thus the means of transportation became more sophisticated, faster and less effort And the purchased commodity takes only days if it is not a few hours or a day or some days, and therefore the global market has become accessible to everyone only to have electronic currencies, a bank card, a mobile phone, or a personal computer that trades very quickly and with high accuracy. This is on the one hand, and on the other hand, stock trading has become The stock market is also accessible to everyone, and the gains that people make have become high, which increased the creation of specialized sites in trading, which in turn helped electronic commerce. Econometrics is experiments in estimating gravity models and using world-famous statistical programs, namely Minitab 17 and EViews 12, which have been explained in detail about their steps, understanding their commands, and how to estimate them, with means of illustration in forms that include the windows of the two programs and the results of estimation in them. Perhaps we hope that this book of ours will be Part of the assistance provided to students and researchers in the Arab world).