title: pooled OLS regression in Stata
body: <p>I'm using Stata/MP 13.0 for Mac. </p>
  
  <p>I need to run a pooled OLS regression using Stata on a data set and have the cluster robust variance matrix. I know the <code>regress</code> command for a normal regression but how do I run a POLS regression ? </p>
  
  <p>If someone knows as well a good text explaining POLS (Google wasn't my friend in that case).</p>
  
  <p>When I <code>regress</code> lnwg on lnhr, I get the following results (Sorry I tried to screenshot it but the file format wasn't permitted:
  A coefficient of .0827 for lnwg.</p>
  
  <p>It is asked the effect of wages on labour supply. Can I simply say :One additional unit of wage leads to a increase of 8% of worked hours ?</p>