Opinion pieces are often treated as performances of no real consuequence, as entertainments and political groundskeeping. But in a study at Yale University, researchers found that op-eds have "large and long-lasting effects on people's views both among the general public and policy experts." Moreover, the study also found that "Democrats and Republicans altered their views in the direction of the op-ed piece in roughly equal measure." "The time and energy it takes to produce an op-ed pieces raises a question: Are people persuaded by op-eds?" said Alexander Coppock, assistant professor of political science at Yale and the study's lead author.