摘要:We examine the motivations and outcomes of firms’ strategic actions in response to external attention. Using stock index reconstit
人大国发院“理论与政策”研讨会
(第213期)
Disclosing green, acting gray: The impact of sudden attention on firms’ strategic environmental efforts
言绿行灰:企业外部关注与策略性环境披露
主 讲:胡一川(同济大学经济与管理学院)
主 持:秦 聪(中国人民大学国家发展与战略研究院)
时 间:2025年6月6日14:00-15:30
地 点:立德教学楼11层1133会议室
报告摘要:
We examine the motivations and outcomes of firms’ strategic actions in response to external attention. Using stock index reconstitutions as sudden and exogenous shocks, we find that firms receiving more attention from analysts and institutional investors are more likely to disclose environmental policies. These disclosures are associated with short-term stock price gains, positive media coverage, and higher environmental ratings. However, they do not result in increased environmental investments or improved environmental performance. Our findings reveal that the primary motivation is short-term enhancement of the corporate environmental image, with limited effects on driving meaningful environmental improvements.
本文研究企业在面对外部关注时采取策略性披露行为的动机和效果。通过利用股票指数成分调整这一外生冲击,我们发现受到分析师和机构投资者更多关注的企业更倾向于披露环保政策。这些披露行为与短期股价上涨、积极的媒体报道以及更高的环境评级相关。然而,它们并未带来环境投资增加或环境绩效改善。本文的研究结果表明,企业的主要动机是短期内提升环保形象,而非推动实质性的环境改善。
报告人简介:
胡一川,同济大学经济与管理学院副教授,主要研究领域为公司金融与国际贸易。学术论文发表在Journal of Corporate Finance、Journal of Economic Behavior & Organization、Journal of International Business Studies、《经济学(季刊)》等期刊,主持国家自然科学基金青年项目。
人大国发院“理论与政策”研讨会
(第214期)
Optimal linear-payment auction design with aftermarket collaboration
具有售后协作的最优线性支付拍卖设计
主 讲:徐欣毅(中山大学岭南学院)
主 持:秦 聪(中国人民大学国家发展与战略研究院)
时 间:2025年6月6日15:30-17:00
地 点:立德教学楼11层1133会议室
报告摘要:
This paper investigates optimal auction design with linear payments in scenarios where the seller and winning bidder collaborate post-auction, focusing on the divergence in the "leading effect." This divergence reflects whether the seller or bidder drives value creation. We model revenue as a multiplicative function of productivity and effort, analyzing winner-led and seller-led collaboration scenarios. A double moral hazard problem arises due to non-contractible post-auction actions. We characterize the optimal auction with linear payments (revenue-sharing and cash) under both scenarios and implement the optimal mechanism via an ascending auction.
本文研究了在线性支付情况下,卖家和中标者在拍卖后进行合作的最优拍卖设计,重点关注“主导效应”的差异。这种差异反映了价值创造是由卖家还是投标人驱动的。我们将收益建模为生产力和努力程度的乘积函数,分析了中标者主导和卖家主导的合作场景。我们分别在两种场景下刻画了具有线性支付(收入分成和现金)的最优拍卖机制,并通过升价拍卖实施该最优机制。
报告人简介:
徐欣毅,中山大学岭南学院副教授,研究方向包括契约理论、机制设计。学术研究发表在 Economic Theory,Journal of Mathematical Economics等学术期刊。
文章来源:人大国发院
审核:秦聪
来源:人大国发院一点号