<p><font size="3"><font face="Times New Roman">I already obtained enough money for my purchase, so i free this book. </font></font><font size="3"><font face="Times New Roman"></font></font></p>
<p><font size="3"><font face="Times New Roman">“Econometric Theory and Methods” </font>英文版<font face="Times New Roman"> PDF</font></font></p>
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<p><font face="Times New Roman" size="3">By Davidson and Mackinnon 4.5M</font></p>
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<p><font size="3">这是我在美国读博士二年级时的教材。<font face="Times New Roman"> </font>一年级用的是格林的书。</font></p>
<p><font size="3">个人感觉在理论的解释上比格林的书要清楚。<font face="Times New Roman"> </font>尤其在面板数据（<font face="Times New Roman">PANEL</font><font face="Times New Roman">DATA</font>）, IV estimation<font face="Times New Roman"> </font>和<font face="Times New Roman">SUR </font>上<font face="Times New Roman">.(这本书的Hausman-Dubin-Wu test 解释的很清楚，通过这个TEST 你可以知道是否要用IV ESTIMATOR，fiexed effect model orrandom effect model, which one is better. And some more general uses.)</font></font></p>
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<p><font size="3">从下面<font face="Times New Roman">LINK, </font>可以下载每章后的练习题的数据集</font></p>
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<p>(I have a brief introduction of this book at the seventh floor.)</p>Some guys pointed out that the version of this e-book is older than the hardcopy of this book. I did not compare them carefully, however when i took the econometric class, i used this ebook instead of the hardcopy of 2004 version. So i think the difference between this e-book and hardcopy is subtle.&nbsp;