measures the size of the exchange market nationwide, and defines conceptually and empirically the magnitude of the effect of exchanges on transaction prices in different markets across the country and across property types. The results imply that participants in tax-delayed exchanges, need to be careful because the price they pay in the form of higher replacement property price may offset, in whole or in part, the gain from deferment of taxes. I also analyze properties purchased by out-of-state buyers, sales that are part of sale-leasebacks, portfolio transactions, or condominium conversions. I find that these special motivations are generally associated with positive price premiums. These results have important implications since they demonstrate not only that various atypical motivations of buyers and sellers have an impact on transaction prices in commercial real estate, but also that this impact is sensitive to the market, as well as to the property type.