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来源类型 | Discussion paper |
规范类型 | 论文 |
来源ID | DP6962 |
DP6962 Lobbying, Corruption and Other Banes | |
Nauro Campos; Francesco Giovannoni | |
发表日期 | 2008-09-23 |
出版年 | 2008 |
语种 | 英语 |
摘要 | This paper examines the hypothesis that firms in competitive industries should benefit relatively less from good governance, while firms in non-competitive industries--where lack of competitive pressure fails to enforce discipline on managers--should benefit relatively more. Whether we look at the effects of governance on long-horizon stock returns, firm value, or operating performance, we consistently find the same pattern: The effect is monotonic in the degree of competition, it is small and insignificant in competitive industries, and it is large and significant in non-competitive industries. By implication, the effect of governance (in non-competitive industries) reported in this paper is stronger than what has been previously reported in Gompers, Ishii, and Metrick (2003, "GIM") and subsequent work, who document the average effect across all industries. For instance, GIM?s hedge portfolio - provided it only includes firms in non-competitive industries -earns a monthly alpha of 1.47%, which is twice as large as the alpha reported in GIM. The alpha remains large and significant even if the sample period is extended until 2006. We also revisit the argument that investors in the 1990s anticipated the effect of governance, implying that the alpha earned by GIM?s hedge portfolio is likely due to an omitted risk factor. We find that while investors were indeed not surprised on average, they underestimated the effect of governance in non-competitive industries, the very industries in which governance has a significant effect in the first place. |
主题 | Financial Economics |
关键词 | Corporate governance G-index Product market competition |
URL | https://cepr.org/publications/dp6962 |
来源智库 | Centre for Economic Policy Research (United Kingdom) |
资源类型 | 智库出版物 |
条目标识符 | http://119.78.100.153/handle/2XGU8XDN/535799 |
推荐引用方式 GB/T 7714 | Nauro Campos,Francesco Giovannoni. DP6962 Lobbying, Corruption and Other Banes. 2008. |
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