Connections with investment banks and their value: Evidence from seasoned equity offerings
研究增发股票的公司与主承销商之间的社会关联如何影响发行结果，发现关联能降低发行成本和折扣，且信息流动是主要机制。
External networks are usually believed to add value, but what happens when the connected parties have conflicting interests in a transaction? We study the impact of social connections between seasoned equity offering (SEO) issuers and their lead underwriters on SEO outcomes. We find that, during accelerated offerings, connected issuers profit substantially from their links to investment banks through both lower direct issuance costs and smaller SEO discounts. Results of an event study based on the sudden collapse of Lehman Brothers show that the effect of connections is causal. We present evidence supporting an information flow hypothesis that connections improve deal outcomes by facilitating more efficient information exchange.