We further adjust FFO for certain additional items that are not included in the definition of FFO, such as hotel transaction and pursuit costs, equity based compensation, loan transaction costs, prepayment penalties and certain other expenses, which we refer to as AFFO. We believe that AFFO provides investors with another financial measure that may facilitate comparisons of operating performance between periods and between REITs.
We caution investors that amounts presented in accordance with our definitions of FFO and AFFO may not be comparable to similar measures disclosed by other companies, since not all companies calculate this non-GAAP measure in the same manner. FFO and AFFO should not be considered as an alternative measure of our net income (loss) or operating performance. FFO and AFFO may include funds that may not be available for our discretionary use due to functional requirements to conserve funds for capital expenditures, property acquisitions, debt service obligations and other commitments and uncertainties. Although we believe that FFO and AFFO can enhance your understanding of our financial condition and results of operations, this non-GAAP financial measure is not necessarily a better indicator of any trend as compared to a comparable GAAP measure such as net income (loss). Above we have included a quantitative reconciliation of FFO and AFFO to the most directly comparable GAAP financial performance measure, which is net income (loss). Dollar amounts in such reconciliation are in thousands.
EBITDA and Adjusted EBITDA, and Hotel EBITDA
EBITDA represents net income or loss, excluding: (i) interest, (ii) income tax expense and (iii) depreciation and amortization. We believe EBITDA is useful to an investor in evaluating our operating performance because it provides investors with an indication of our ability to incur and service debt, to satisfy general operating expenses, to make capital expenditures and to fund other cash needs or reinvest cash into our business. We also believe it helps investors meaningfully evaluate and compare the results of our operations from period to period by removing the effect of our asset base (primarily depreciation and amortization) from our operating results. Our management also uses EBITDA as one measure in determining the value of acquisitions and dispositions. We further adjust EBITDA by adding back hotel transaction and pursuit costs, equity based compensation, impairment losses, and certain other nonrecurring expenses. We believe that adjusted EBITDA provides investors with another financial measure that may facilitate comparisons of operating performance between periods and between REITs.