What is the TBI?
The MIT/CRE CREDL Initiative has developed a Transactions-Based Index (TBI) of Institutional Commercial Property Investment Performance. The purpose of this index is to measure market movements and returns on investment based on transaction prices of properties sold from the NCREIF Index database. This is a new type of index that offers advantages for some purposes over the median-price or appraisal-based indexes previously available for commercial real estate in the U.S. Median price indexes are not true price-change indexes because the properties that transact in one period are different from those that transacted in the previous period. Appraisal-based indexes are based on appraisal estimates rather than actual prices of actual transactions. The type of transactions-based index being provided by MIT/CRE can often provide a more up-to-date or precise picture of movements in the real estate market than these other types of indexes, and is being provided for research purposes by the MI
