We did a huge statistical analysis for OnCarrot of which keywords work, and why, for REI PPC.It's available free, here:https://oncarrot.com/ppc-report/To summarize the problem, though: you're pulling keywords from thin air based on what you think people will type in when they want to sell.

I don't have any statistics to back this up, so chalk this up as anecdotal evidence only. 

If you do figure out an arbitrage strategy, you will make some temporary profits but eventually the computers will detect your wins and start front-running your trades.It helps to have an advanced degree in Math/Physics/Statistics, access to sophisticated simulation software to back-test your trading strategies, and the intestinal fortitude of a Navy Seal :)

When it comes to crime statistics and area ratings, My #1 go-to is https://www.niche.com/places-t...I really like Niche because it not only gives a general area rating, but school ratings, crime, housing, diversity, and nightlight.

@Joe Villeneuve I get that but, I still think you need to know how the market is doing but looking at statistics, historically via charts as well as knowing your "numbers" 

I say that's a myth and a statistical outlier.  

It is a fraction of a percentage and that is a macro statistic while your handful of flips is micro. 

Me personally I am looking at house values, income relative to city, %renters, population shift, COL index and education statistics. 

I use Trulia.com for crime and other local statistics.

You can look at an area's average statistics and assume that's what your property will perform at.