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Attention Spillover in Asset Pricing

Journal of Finance 2023 78(6), 3515-3559 open access
ABSTRACT Exploiting a screen display feature whereby the order of stock display is determined by the stock's listing code, we lever a novel identification strategy and study how the interaction between overconfidence and limited attention affect asset pricing. We find that stocks displayed next to those with higher returns in the past two weeks are associated with higher returns in the future week, which are reverted in the long run. This is consistent with our conjectures that investors tend to trade more after positive investment experience and are more likely to pay attention to neighboring stocks, both confirmed using trading data.

Corporate social responsibility and media coverage

Journal of Banking & Finance 2015 59, 409-422
In this study, we examine whether firms that act more socially responsible receive more favorable media coverage, and we consider whether firms use CSR to actively manage their media image. We focus on all news stories about a firm, not just those that report on specific CSR initiatives, and find that more socially responsible firms receive more favorable news reportage overall, i.e., they have a more positive media image. These findings are robust after controlling for potential endogeneity. Further, consistent with firms actively managing their media image, we find a stronger relation between CSR and media favorability when incentives to improve a firm’s media image are high, e.g., among firms in sin industries, during periods of low investor sentiment, and prior to seasoned equity offerings. Finally, we find that for firms that demonstrate superior social responsibility and receive more favorable news reporting, there is a significant interaction between social responsibility and media favorability that increases (decreases) a firm’s equity valuation (cost of capital). Our results are consistent with the media slanting their reporting in favor of good performing CSR firms. Overall, we contribute to the literature by showing that firms can influence their media coverage through a relatively subtle channel, CSR performance.

Global versus Local ESG Ratings: Evidence from China

The Accounting Review 2025 100(4), 161-192 open access
ABSTRACT We compare the ESG ratings of MSCI, a global rater, with those of SINO, a local Chinese rater, to evaluate their effectiveness in capturing ESG risks within the Chinese context. Using ESG issues revealed in negative incidents as a proxy for ESG risk, we find that the ratings from the two raters often diverge, with SINO generally outperforming MSCI in predicting ESG risks in China. This divergence is more pronounced for firms with extensive ESG disclosures and when there are significant differences in how the raters define and measure ESG issues. Distance-based information asymmetry does not appear to play a significant role in explaining the performance gap. The advantage of local raters likely stems from their flexibility in tailoring methodologies to reflect country-specific nuances. In contrast, global raters adopt consistent methodologies to meet investor demand for comparability, but this approach may inadvertently reduce their relevance for capturing localized ESG risks. Data Availability: Data are available from sources identified in the text. JEL Classifications: G14; M4.