4 . dos Specification
The new crucial parameters regression discontinuity requirements utilized in that it report suits a flexible polynomial to the each side of your appraisal cutoff and you may methods how big is this new discontinuity using an excellent dummy variable getting value step one having observations below the cutoff. The first-stage specs is actually:
In which was an indication to have perhaps the financing origination count was according to the conforming restrict, consequently they are 7th-order polynomial qualities regarding appraisal number, are indicative to possess perhaps the appraisal amount was in assessment restrict, and is a great vector away from control variables as well as refinance reputation, dummies having FICO score into the 5-section bins, as well as over 600,000 dummies for every single postcode/month of origination consolidation throughout the dataset, making it possible for us to handle to possess regional sector conditions very flexibly. 19 Whilst appraisal limitation may differ by seasons and you will venue, all data is pooled because of the re also-focus the data such that, for each season and you may location, the appropriate appraisal maximum is equivalent to no.
Leer másThis permits a full 2003-2007 test are run in an individual regression