Negotiations over who forms the next coalition government have seen both Labour and the Conservatives offer a referendum on the Alternative Vote, not the Lib Dems preferred Single Transferable Vote. Why, because AV is most likely to benefit the larger parties and STV is most likely to benefit the minor parties.
They could offer a referendum on two or three plans for electoral reform from the three main parties and, to my mind, offering a referendum only on AV is a cynical attempt to disenfranchise voters. It says that they really don't trust voters to make a fair and considered decision about the merits of each system, after hearing a broad debate.
Democracy? What democracy?