RV Ratio vs Affordability index

[Akeem Wheatley]

I am working on learning my market by finding information out there such as population trend, major industries in the city, median household income, price, rent, absorption rate etc. I have found good information on most of the other trends and I started review RV ratio and affordability. I have a vague idea of these indicators but they seem to me that they share similar characteristics. Question: during my market research of my market is RV ratio or affordability really significant? Or having the other economic indicators would suffice.