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    <title>topic Dynamic panel data estimation with SAS in SAS Procedures</title>
    <link>https://communities.sas.com/t5/SAS-Procedures/Dynamic-panel-data-estimation-with-SAS/m-p/153059#M40261</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;Hello,&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;I hope you are having a nice day. &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;I have been trying to run a 2-step GMM with SAS to estimate my dynamic panel data but it seems that I am doing something wrong.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;I attached a picture of what my data looks like.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;So basically I have intraday observations over a number days for different contracts. My time series are set by the "start" variable which goes 08:05- 08:10 - 08:15-... My cross-section is between different contracts.&amp;nbsp; &lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;This is the procedure that I used but it is not working:&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;proc panel data=basvoldum_short_lond;&lt;/P&gt;&lt;P&gt;inst depvar;&lt;/P&gt;&lt;P&gt;model BASw = tod1-tod105 / gmm nolevels twostep;&lt;/P&gt;&lt;P&gt;id cnt start;&lt;/P&gt;&lt;P&gt;run;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;Any suggestions? &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;Sorry for taking your time and thank you for your tremendous help. &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;BR /&gt;&lt;IMG src="https://communities.sas.com/t5/image/serverpage/image-id/11887i3A3C87E674319541/image-size/large?v=1.0&amp;amp;px=600" border="0" alt="Screenshot 2014-03-22 18.31.27.png" title="Screenshot 2014-03-22 18.31.27.png" /&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Sat, 22 Mar 2014 18:48:27 GMT</pubDate>
    <dc:creator>BchBnz</dc:creator>
    <dc:date>2014-03-22T18:48:27Z</dc:date>
    <item>
      <title>Dynamic panel data estimation with SAS</title>
      <link>https://communities.sas.com/t5/SAS-Procedures/Dynamic-panel-data-estimation-with-SAS/m-p/153059#M40261</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;Hello,&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;I hope you are having a nice day. &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;I have been trying to run a 2-step GMM with SAS to estimate my dynamic panel data but it seems that I am doing something wrong.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;I attached a picture of what my data looks like.&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;So basically I have intraday observations over a number days for different contracts. My time series are set by the "start" variable which goes 08:05- 08:10 - 08:15-... My cross-section is between different contracts.&amp;nbsp; &lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;This is the procedure that I used but it is not working:&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;proc panel data=basvoldum_short_lond;&lt;/P&gt;&lt;P&gt;inst depvar;&lt;/P&gt;&lt;P&gt;model BASw = tod1-tod105 / gmm nolevels twostep;&lt;/P&gt;&lt;P&gt;id cnt start;&lt;/P&gt;&lt;P&gt;run;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;Any suggestions? &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;Sorry for taking your time and thank you for your tremendous help. &lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;P&gt;&lt;SPAN style="color: #000000;"&gt;&lt;BR /&gt;&lt;/SPAN&gt;&lt;/P&gt;&lt;BR /&gt;&lt;IMG src="https://communities.sas.com/t5/image/serverpage/image-id/11887i3A3C87E674319541/image-size/large?v=1.0&amp;amp;px=600" border="0" alt="Screenshot 2014-03-22 18.31.27.png" title="Screenshot 2014-03-22 18.31.27.png" /&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Sat, 22 Mar 2014 18:48:27 GMT</pubDate>
      <guid>https://communities.sas.com/t5/SAS-Procedures/Dynamic-panel-data-estimation-with-SAS/m-p/153059#M40261</guid>
      <dc:creator>BchBnz</dc:creator>
      <dc:date>2014-03-22T18:48:27Z</dc:date>
    </item>
    <item>
      <title>Re: Dynamic panel data estimation with SAS</title>
      <link>https://communities.sas.com/t5/SAS-Procedures/Dynamic-panel-data-estimation-with-SAS/m-p/153060#M40262</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hi,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;So the first question is how is it "not working"?&amp;nbsp; Are there error messages in the log, are the results un-interprebable, or does the procedure just not run?&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I would also recommend reposting this in the SAS Forecasting and Econometrics forum, as the folks that follow that group will see this sooner than here in the general procedures forum.&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 24 Mar 2014 13:15:34 GMT</pubDate>
      <guid>https://communities.sas.com/t5/SAS-Procedures/Dynamic-panel-data-estimation-with-SAS/m-p/153060#M40262</guid>
      <dc:creator>SteveDenham</dc:creator>
      <dc:date>2014-03-24T13:15:34Z</dc:date>
    </item>
    <item>
      <title>Re: Dynamic panel data estimation with SAS</title>
      <link>https://communities.sas.com/t5/SAS-Procedures/Dynamic-panel-data-estimation-with-SAS/m-p/153061#M40263</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;Hello Steve,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks for your answer.&lt;/P&gt;&lt;P&gt;The SAS error reported says that the time series is not properly sorted, although I sorted the data before.&lt;/P&gt;&lt;P&gt;Thank you for the tip. I did not know there was a SAS Forecasting and Econometrics forum. I will post my question there.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Cheers!&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Mon, 24 Mar 2014 23:08:45 GMT</pubDate>
      <guid>https://communities.sas.com/t5/SAS-Procedures/Dynamic-panel-data-estimation-with-SAS/m-p/153061#M40263</guid>
      <dc:creator>BchBnz</dc:creator>
      <dc:date>2014-03-24T23:08:45Z</dc:date>
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