<prompt> Translate the following text to EnglishKwa maelezo zaidi kuhusu tofauti kati ya kodi ya mapato na matumizi na matibabu ya sasa ya kodi ya akiba na uwekezaji, angalia athari ya uwezekano wa kodi ya kodi ya mbadala kwa walipa kodi na wasimamizi GAO, GGD, 98-37, Januari 14, 1998.  <response>: 26For more information about the differences between income and consumption taxes and the current tax treatment of saving and investment, see Tax Potential Impact of Alternative Taxes on Taxpayers and Administrators GAOGGD-98-37, January 14, 1998, pp. 55-77. 