The Company believes that EBITDA is a useful financial metric to assess the operating and financial performance before the impact of investing and financing transactions and income taxes, given the significant investments that the Company has made in leasehold improvements, depreciation and amortization expense that comprise a significant portion of the Company's cost structure. In addition, the Company believes that EBITDA is widely used by other companies in the lodging industry and may be used by investors as a measure of financial performance. The Company believes that EBITDA will provide investors with a useful tool for comparability between periods because it eliminates depreciation and amortization expense attributable to capital expenditures. The Company also uses adjusted EBITDA from operating hotels, which is defined as EBITDA before pre-opening expenses and share-based compensation expenses, to assess operating results of the hotels in operation. The Company believes that the exclusion of pre-opening expenses and share-based compensation expenses, a portion of which is non-cash rental expenses, helps facilitate year-on-year comparison of the results of operations as the number of hotels in the development stage may vary significantly from year to year. Therefore, the Company believes adjusted EBITDA from operating hotels more closely reflects the performance capability of hotels currently in operation. The calculation of EBITDA and adjusted EBITDA from operating hotels does not deduct interest income. The presentation of EBITDA and adjusted EBITDA from operating hotels should not be construed as an indication that the Company's future results will be unaffected by other charges and gains considered to be outside the ordinary course of business.
The use of EBITDA and adjusted EBITDA from operating hotels has certain limitations. Depreciation and amortization expense for various long-term assets, income tax and interest expense have been and will be incurred and are not reflected in the presentation of EBITDA. Pre-opening expenses and share-based compensation expenses have been and will be incurred and are not reflected in the presentation of adjusted EBITDA from operating hotels. Each of these items should also be considered in the overall evaluation of the results. The Company compensates for these limitations by providing the relevant disclosure of the depreciation and amortization, interest expense, income tax expense, pre-opening expenses, share-based compensation expenses and other relevant items both in the reconciliations to the U.S. GAAP financial measures and in the consolidated financial statements, all of which should be considered when evaluating the performance of the Company.