Vulnerability of Selected Social Choice Methods to Strategic Voting

Abstract

Analysis of vulnerability of selected social choice methods to strategic voting is presented in the article. Selected methods are: plurality voting, the Borda count and approval voting. Applied procedure allowed strategic voting of unlimited number of voters. With each method voters knew the outcome of the sincere voting, consistent with their real preferences. 24 variants differed on voting parameters; for each variant 1000 random profiles of preferences have been analyzed. Results are different from expected.