Contributions by investor-owned companies play major roles in financing the campaigns of candidates for elective office in the United States. We look at the presidential level and analyze contributions by companies before an election and their stock market performance following US presidential...

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...