Either that, or we have one operator for the MRT and one
operator for the buses, then you still have a duopoly. The issue
here is that the Government heavily subsides both operators (I
think), and therefore, if it became a monopoly (or, as it were,
more of a monopoly than it already is), then you still have the
same service level, because the government could lose votes should
bus services worsen. If anything, bus services would be competing
with the MRT and probably improve instead. Whether the loss of
votes is a big issue in Singapore is another matter, but I may get
arrested for pushing that issue 
