Crosswalks between Different Levels of Geography in the U.S.

Imagine you have geographic information at the county level in one data set but you want to merge in some additional information that is only available at the MSA level (or you have MSA in your data but want to merge in state level variables, etc.) What to do? Check out Geocorr 2014: Geographic Correspondence Engine provided by the Missouri Census Data Center. Super easy to use! 

H/T: Eric Brunner. 

How to Write an Abstract

David Evans provides a handy dandy formula here. Here's an exercise for you: Find the 5-7 most closely related papers to yours and diagram their abstracts. Do they use any of the formulas David describes? A different formula? Do you see a difference by the quality of the journal they're published in.  

Describe what you find in the comments below!