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	<title>Comments on: Hard Facts: Mergers</title>
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	<link>http://www.overcomingbias.com/2010/03/hard-facts-mergers.html</link>
	<description>Overcoming Bias is economist Robin Hanson’s blog, on honesty, signaling, disagreement, forecasting, and the far future.</description>
	<lastBuildDate>Sun, 12 Feb 2012 01:09:57 +0000</lastBuildDate>
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		<title>By: Bob Geren and effective management &#8211; Kevin Burke</title>
		<link>http://www.overcomingbias.com/2010/03/hard-facts-mergers.html#comment-473973</link>
		<dc:creator>Bob Geren and effective management &#8211; Kevin Burke</dc:creator>
		<pubDate>Thu, 09 Jun 2011 21:03:22 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=22150#comment-473973</guid>
		<description>[...] instead of telling stories or anecdotes. If you&#8217;re new, check out Hard Facts, their book on evidence based management, first.     Jun 9th, 2011 by kevin.   Tagged: bob geren &#183; management &#183; oakland [...]</description>
		<content:encoded><![CDATA[<p>[...] instead of telling stories or anecdotes. If you&#8217;re new, check out Hard Facts, their book on evidence based management, first.     Jun 9th, 2011 by kevin.   Tagged: bob geren &middot; management &middot; oakland [...]</p>
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		<title>By: Glen Raphael</title>
		<link>http://www.overcomingbias.com/2010/03/hard-facts-mergers.html#comment-444230</link>
		<dc:creator>Glen Raphael</dc:creator>
		<pubDate>Mon, 15 Mar 2010 14:17:24 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=22150#comment-444230</guid>
		<description>Agree. Companies have to make lots of decisions and place lots of bets; most won&#039;t pay off but a few will. It&#039;s not even clear from the quote that mergers on the whole produce net negative value - you&#039;d need to balance the *magnitude* of the benefits and harms - but it wouldn&#039;t be surprising if they did.

I can think of two other relevant factors that could make mergers a warning sign. It boils down to the fact that *mergers are painful*. Undergoing a merger means disrupting to some degree your normal productivity and wasting a lot of management time on paperwork that doesn&#039;t in itself help the company succeed.

Hypothesis #1: Companies merge when they&#039;re in a &quot;Hail Mary&quot; pass situation. When the normal business model is in such trouble that merely executing on that is no longer an option or no longer a good option. 

Hypothesis #2: Companies merge when they are top-heavy. There are more managers than needed to solve the problems the company has so management - rather than shrinking to an appropriate size - goes out and creates new problems to keep everyone busy. 

#1 says some of the calculated &quot;negative effect of mergers&quot; is really a selection bias - the merger might be a symptom of less than it is the cause of the problems that show up a month later.

#2 puts mergers in essentially the same category as constructing an impressive new office building for the company.</description>
		<content:encoded><![CDATA[<p>Agree. Companies have to make lots of decisions and place lots of bets; most won&#8217;t pay off but a few will. It&#8217;s not even clear from the quote that mergers on the whole produce net negative value &#8211; you&#8217;d need to balance the *magnitude* of the benefits and harms &#8211; but it wouldn&#8217;t be surprising if they did.</p>
<p>I can think of two other relevant factors that could make mergers a warning sign. It boils down to the fact that *mergers are painful*. Undergoing a merger means disrupting to some degree your normal productivity and wasting a lot of management time on paperwork that doesn&#8217;t in itself help the company succeed.</p>
<p>Hypothesis #1: Companies merge when they&#8217;re in a &#8220;Hail Mary&#8221; pass situation. When the normal business model is in such trouble that merely executing on that is no longer an option or no longer a good option. </p>
<p>Hypothesis #2: Companies merge when they are top-heavy. There are more managers than needed to solve the problems the company has so management &#8211; rather than shrinking to an appropriate size &#8211; goes out and creates new problems to keep everyone busy. </p>
<p>#1 says some of the calculated &#8220;negative effect of mergers&#8221; is really a selection bias &#8211; the merger might be a symptom of less than it is the cause of the problems that show up a month later.</p>
<p>#2 puts mergers in essentially the same category as constructing an impressive new office building for the company.</p>
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		<title>By: Doug S.</title>
		<link>http://www.overcomingbias.com/2010/03/hard-facts-mergers.html#comment-443933</link>
		<dc:creator>Doug S.</dc:creator>
		<pubDate>Tue, 09 Mar 2010 04:44:32 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=22150#comment-443933</guid>
		<description>Yep. When two companies are about to merge, short them! ;)</description>
		<content:encoded><![CDATA[<p>Yep. When two companies are about to merge, short them! <img src='http://www.overcomingbias.com/wp-includes/images/smilies/icon_wink.gif' alt=';)' class='wp-smiley' /> </p>
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		<title>By: nelsonal</title>
		<link>http://www.overcomingbias.com/2010/03/hard-facts-mergers.html#comment-443931</link>
		<dc:creator>nelsonal</dc:creator>
		<pubDate>Tue, 09 Mar 2010 03:45:25 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=22150#comment-443931</guid>
		<description>Principle agent problems too.  Managers are paid by firm size so every merger is a success, so long as it&#039;s not so bad that the investors remember how poorly the combined firm does compared to promised results.</description>
		<content:encoded><![CDATA[<p>Principle agent problems too.  Managers are paid by firm size so every merger is a success, so long as it&#8217;s not so bad that the investors remember how poorly the combined firm does compared to promised results.</p>
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		<title>By: Vladimir</title>
		<link>http://www.overcomingbias.com/2010/03/hard-facts-mergers.html#comment-443930</link>
		<dc:creator>Vladimir</dc:creator>
		<pubDate>Tue, 09 Mar 2010 03:15:19 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=22150#comment-443930</guid>
		<description>I believe you meant &quot;series&quot; in place of &quot;serious.&quot; Although your posts are serious.</description>
		<content:encoded><![CDATA[<p>I believe you meant &#8220;series&#8221; in place of &#8220;serious.&#8221; Although your posts are serious.</p>
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		<title>By: Sam Schulman</title>
		<link>http://www.overcomingbias.com/2010/03/hard-facts-mergers.html#comment-443927</link>
		<dc:creator>Sam Schulman</dc:creator>
		<pubDate>Tue, 09 Mar 2010 01:17:00 +0000</pubDate>
		<guid isPermaLink="false">http://www.overcomingbias.com/?p=22150#comment-443927</guid>
		<description>A moment&#039;s thought would indicate that a huge percentage of all business decisions - decisions to acquire or divest, decisions NOT to acquire or divest,  to raise prices or cut them, to expand or contract production, to hire a particular employee or to expand employment in general, or to downsize - fail, in the sense that they do not deliver the benefits that they promised - or indeed, produce the opposite result, and to some degree - if only in opportunity cost - &quot;destroy ecomomic value.&quot;  Anyone in business would agree that the figure of a 70% failure rate for most such decisions is not unrealistic.
So why should mergers be any different?
This is a rare instance in which you find an utterly trivial observation remarkable, Robin.  This happens with you far less than 70% of the time.</description>
		<content:encoded><![CDATA[<p>A moment&#8217;s thought would indicate that a huge percentage of all business decisions &#8211; decisions to acquire or divest, decisions NOT to acquire or divest,  to raise prices or cut them, to expand or contract production, to hire a particular employee or to expand employment in general, or to downsize &#8211; fail, in the sense that they do not deliver the benefits that they promised &#8211; or indeed, produce the opposite result, and to some degree &#8211; if only in opportunity cost &#8211; &#8220;destroy ecomomic value.&#8221;  Anyone in business would agree that the figure of a 70% failure rate for most such decisions is not unrealistic.<br />
So why should mergers be any different?<br />
This is a rare instance in which you find an utterly trivial observation remarkable, Robin.  This happens with you far less than 70% of the time.</p>
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