Microsoft Outlook 2011 constantly crashing
From the crashlog it looks like Merp is causing the crash.  I googled merp crashing outlook and came across an article on answers.microsoft.com.  From what it said, you need to update Microsoft Error Reporting Program (Merp) from Here:   http://www.microsoft.com/en-us/download/details.aspx?displaylang=en&amp;id=28734.

Before you do that, check and see if you have any rules that may be corrupt and remove them.

Here's the link about Merp crashing outlook:

http://answers.microsoft.com/en-us/mac/forum/macoffice2011-macoutlook/outlook-2011-crashes-every-time-i-open-rules/8740225f-9b4b-4df7-a1e1-f693fb12322f?msgId=655b76b4-28af-4df0-b5e5-56989f26677e