<prompt> Translate the following text to EnglishMwingiliano muhimu kati ya bajeti na uchumi ni athari ya upungufu wa shirikisho au ziada juu ya kiasi cha akiba ya kitaifa inayopatikana kwa uwekezaji.  <response>: The key interaction between the budget and the economy is the effect of the federal deficitsurplus on the amount of national saving available for investment. 