Many are even imposing limits on their customers.
State banks are imposing limits on the amount of dollars and euros they sell.
(Earlier this year, Senate Democrats backed away from imposing limits on filibusters).
The S.E.C. has also suggested imposing limits on high-frequency traders.
But even he is open to imposing limits on the currently unlimited contributions to political parties.
Of course, physics isn't the only factor imposing limits on these leviathans.
China is not alone in imposing limits on non-domestic films, but its quota regime is among the world's tightest.
But this future is impossible without a shift in public opinion that legitimizes imposing limits on health spending.
One option under discussion involves imposing limits on the use of coal or on all fossil fuels (coal, oil, and natural gas) at the national or regional levels.
It could discuss how to restrain the growth of unsustainable debt, perhaps increasing creditor rights and imposing limits on international market access and support from central banks.
Those that don't often find urban migration unmanageable.Some governments are trying to curb the growth of cities by imposing limits on movement and restrictions on land use.
