Final answer:
The subject of this question is Political Science Research. Political scientists study how campaign expenditures affect election outcomes using empirical research methods.
Step-by-step explanation:
The subject of this question is Political Science Research. Political scientists study how campaign expenditures affect election outcomes by analyzing the strategies campaign managers use to reach voters and by analyzing the factors that typically affect a voter's decision. They use empirical research methods to examine voting behavior and interpret the results to gain insights into election outcomes.