Election Timing. By Alastair Smith. New York: Cambridge University Press, 2004. 286p. $75.00.

Alistair Smith has written, no doubt, the definitive book on the timing of elections in the United Kingdom. This, together with two party swings, is a subject that greatly concerns politicians and commentators in Britain. The conventional wisdom is that the choice of election date is a crucial decision for the incumbent prime minister, and that this choice gives the incumbent a considerable advantage. This follows from the ability of the incumbent to engage in “political surfing” (holding election when the government's popularity is at its highest) or to actively manage the political business cycle to achieve favorable economic conditions at the time of the election. Smith argues, however, that this advantage is overstated. The very act of calling an early election sends a signal to voters that the government has information about future performance that it wishes to hide from the voters. As a result, when governments call early elections, their actual vote share tends to be considerably less than the opinion polls before the announcement would suggest. For example, when Margaret Thatcher called early elections in 1982, she got 42% of the vote, as opposed to preannouncement polls of 48%.