User-Generated Content and Bias in News Media
研究了报纸增加包含用户生成内容的在线版对印刷版倾向性的影响，发现这能减轻印刷版的偏见，但用户自主权增加会使印刷版更两极分化，同时在线版会降低报纸利润。
In this study, we investigate newspapers' decision to expand their product lines by adding online editions that incorporate user-generated content. We demonstrate that such product line extensions mitigate the extent of slanting in print media. The results also show that as the extent of discretion of users to generate online content increases, print versions of newspapers become more polarized. Furthermore, adding online editions results in reduced profits for newspapers as the additional product variants increase the intensity of competition in the market and the discretion awarded to users limits the ability of newspapers to extract rents from consumers. Data, as supplemental material, are available at http://dx.doi.org/10.1287/mnsc.2013.1746 . This paper was accepted by J. Miguel Villas-Boas, marketing.