Abstract
Electoral geography is mostly concerned with the results of voting, but the actual balloting is preceded by both a short period of canvassing and a much longer period of campaigning, during which parties try to ensure maximum turnout of their supporters. In Britain, the amount which can be spent during the canvassing period is limited, but the parties rarely spend their entire allotment in any seat. Hypotheses of rational investment by parties are developed, but spatial analysis of campaign expenditure gives them relatively weak support, as it does to further hypotheses regarding voter reaction to the investment.

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