Deep in the basement of ankh morpork's main bank there is a device made and maintained by Hurbert Turvy. It job is simulate the economy at work through a whole load of tanks, pipes and tipping buckets (which Hubert is especially proud of).
This scene will neve be able to fully recreate the glooper (ok, bit obvious

) but it at least comes close to looking like it. Use the up or down arrows to pump water (money) into the banks where it flows (through investments and loans) into businesses and the public. Press I to open the investments channel and F to close it. Number pad 4 and 6 adjust consumer preferance towards new or old businesses.
Tips:
1. at the beginning open the investments channel and flood the bank.
2. The bank doesn't have to be rich, just 1/3 of the publics level.
3. If it all goes t*ts up then your doing well.
If there was an update:
-Extra big container for 'MPs salary'.
-Tax adjuster