Many believe the work should be financed by the 'public purse'. [=should be paid for by the government]
Companies are expected to 'loosen the purse strings' as the economy improves.
School administrators are already 'tightening (the) purse strings'.
(..) BRUTAL: Paul. Dean. Yeah? Come here. Go on. BRUTAL: I guess the legislature loosened up the purse strings enough... ...to hire on a new guard. Look again. He's right... ...there. It ain't normal for a mouse (..)1999 The Green Mile