What Macro Data Study Should BiggerPockets Provide to Investors?

[Scott Trench]

Hi Everyone,

Last year, @Alec Neita and I built the BiggerPockets  Investment Market Index - a study of rent and value increases, year over year, in the 50 most populous U.S. metros. 

I think that study is useful for investors as a historical look at property appreciation and rent increases. I plan to update that again this year and take another look sometime in July (the data requires a full first half of the year to pass). 

My question for you all is this - what would be the next most useful (macro) dataset I could produce for you here in 2016? What would you like to know? 

The criteria for this project are:

1)  I'm only looking at the largest metro areas of the country. Sorry - great data just doesn't exist for non-populous regions - plus I want to help the most people possible with this project.

2)  I must have the ability to source this data from credible sources.

This means that I can't do things like "landlord friendly metros" - as that would be subjective and require an exhaustive look at state by state legislature.

Other than that - what do folks think would be useful to investors?