Without being too extravagant you can get by with 5000 to 10000 yen per day on lunch and dinner including transportation/subway/rail. That's about $50.00 to $100.00 in American dollars (minimizing taxi usage). Try to avoid the taxi's because that could cost a small fortune, especially in rush hour.
The popular referendum is a device which allows voters to approve or repeal an act of the Legislature. If the Legislature passes a law that voters do not approve of, they may gather signatures to demand a popular vote on the law.
An act of the Legislature which proposes an amendment to the state Constitution for reference to the people for acceptance or rejection. To pass, joint resolutions must receive a two-thirds affirmative vote of the members elected in each house. JOURNAL. Official record of action of legislative session.