<prompt> Translate the following text to EnglishMfano mmoja wa sera ya kifedha ambayo tunaweza kutumia katika simulation yetu ni serikali ya shirikisho kuokoa tu ziada ya usalama wa kijamii na kutumia ziada ya si usalama wa kijamii iliyokadiriwa katika miaka kumi ya kwanza kwa mchanganyiko wa kupunguzwa kwa kodi ya kudumu na ongezeko la matumizi.  <response>: 18 One possible fiscal policy, which we used in our simulation, would be for the federal government to save only the Social Security surpluses and to spend the non-Social Security surpluses projected over the first 10 years on some mix of permanent tax cuts and spending increases. 