<prompt> Translate the following text to SwahiliWhen it is suggested that the Postal Service should spend more on cost studies, questions arise about private sector expenditures in this area.  <response>: Wakati inashauriwa kwamba Huduma ya Posta inapaswa kutumia zaidi juu ya masomo ya gharama, maswali yanatokea kuhusu matumizi ya sekta binafsi katika eneo hili. 