Campaign expenditures are not effective in increasing candidates vote shares if voters do not respond to the advertisement when they believe that campaign expenditures are financed with tainted money. In this situation, limiting contributions may reduce the number of policy favors that...

This paper examines the effects of campaign spending limits on political competition and incumbency advantage. We study a reform in Brazil that imposed limits on campaign spending for mayoral elections. These limits were implemented with a discontinuous kink which we exploit for causal...