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Political connections and short sellers

Journal of Banking & Finance 2023 146, 106703
This study finds that politically connected firms, comparing with their non–connected peers, are less likely to be targeted by short sellers, especially during the periods of market turmoil. Short sellers’ avoidance of politically connected firms can be attributed to the implicit government guarantee, which significantly increases the target firms’ information complexity and decreases short sellers’ expected risk–adjusted profits. The absence of short sellers consequently results in less negative stock returns for politically connected firms as compared to their non–connected peers. Our findings extend Boehmer et al.(2010) by showing that the absence of short sellers may not necessarily indicate good news but can be attributed to the presence of political connections. This study sheds some light on the sources of market value of political connections.

Information spillover and cross-predictability of currency returns: An analysis via Machine Learning

Journal of Banking & Finance 2024 169, 107313
This paper documents significant cross-return predictability of news variables, derived from textual analysis of news articles, for a broad cross-section of currencies. By employing forecasts based on the Least Absolute Shrinkage and Selection Operator (LASSO) that incorporate both news variables and forward discounts, we develop a notably profitable trading strategy. This strategy proves robust against transaction costs, risk adjustments, and controls for currency characteristics. Further analyses indicate that both risks and market frictions contribute to the profitability of the trading strategy, highlighting the crucial role of news in financial markets.