Published as 'An exploration of managers' reasons for depreciation method choice in Egyptian companies' in Journal of Applied Accounting Research published by Emerald. The final published version can be found at: http:// dx.doi.org/10.1108/09675420910963379Managers' reasons for depreciation method choice: Exploring technical and PAT explanations in Egyptian companies Abstract Purpose: The paper seeks to complement a more conventional PAT-based study of accounting method choice in Egyptian firms (Dey et al., 2007) by examining three alternative computational reasons for depreciation method choice: simplicity; compatibility with industry norm; and suitability for class of asset.Design/methodology/approach: The paper draws on a questionnaire survey, sent to Egyptian companies, in which managers were asked to indicate their reasons for choosing depreciation methods as well as the actual depreciation methods used.Findings: The paper finds that technical reasons were frequently given in survey responses from managers. However, the available evidence on the actual depreciation methods used by their firms and industries is in fact more consistent with PAT-based theories of accounting choice than with such alternatives. This suggests that the responses to the survey reflected managers' rationalisations of decisions made for self-interested purposes.Originality/value: Most recent work on managerial decisions concerning accounting choices utilises data gathered from databases of published financial information and is undertaken within a PAT context. This study extends that approach by utilising the results of a questionnaire distributed in Egypt to test some additional hypotheses that reflect possible technical accounting reasons for justifying depreciation methods.