Do Tax Rates Affect Corporate Social Responsibility? A Natural Experiment From Corporate Tax Rate Changes
Yiwei Fang, Iftekhar Hasan, Qiang Wu
Journal of Accounting, Auditing and Finance,
im Erscheinen
Abstract
Get access Abstract This study examines how changes in state corporate tax rates affect corporate social responsibility (CSR) performance among U.S. firms. Using staggered state-level tax reforms and a difference-in-differences (DiD) design, we identify an asymmetric causal effect: tax cuts significantly enhance CSR performance by reducing concerns, whereas tax increases only marginally weaken CSR strengths. Drawing primarily on signaling theory, complemented by slack resource and stakeholder perspectives, we argue that tax cuts expand financial slack, enabling firms to use CSR as a positive signal of financial strength, long-term orientation, and responsible use of tax savings. In contrast, firms avoid cutting CSR significantly after tax hikes to prevent negative signaling. In support of the theories, our heterogeneity analyses show that these effects are stronger among financially constrained firms and are concentrated in material CSR issues that are financially relevant to investors. A domain-level analysis further reveals that tax increases reduce environmental strengths, while tax cuts lower concerns related to employee relations, diversity, and environmental practices. These findings highlight how tax policy shapes CSR through its impact on financial flexibility and stakeholder expectation, offering implications for corporate strategy and public policy.
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Going Public and the Internal Organization of the Firm
Daniel Bias, Benjamin Lochner, Stefan Obernberger, Merih Sevilir
Journal of Finance,
Vol. 81 (1),
2026
Abstract
This paper examines how initial public offerings (IPOs) affect firms' internal organization. We find that IPO firms become more hierarchical and standardized organizations, characterized by additional layers, more managers, smaller control spans, and larger administrative functions. These changes occur mostly in preparation for the IPO and can be only partially explained by growth. IPO firms with greater human capital risk experience larger hierarchical changes. Hierarchical changes help firms standardize employee roles and formalize internal processes. Our results suggest that firms reorganize to reduce their dependence on key individuals' human capital when transitioning to public markets.
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How Do Banks Respond to Supplier IPOs?
Sung C. Bae, Iftekhar Hasan, Liuling Liu, Haizhi Wang
Financial Markets, Institutions and Instruments,
Vol. 34 (3),
2025
Abstract
This paper examines how supplier IPO events affect their key customers’ cost of debt. The evidence reveals that average loan spreads for customers increase by roughly 20% (23.7 basis points) following suppliers’ IPO events. This negative spillover effect is more pronounced when suppliers make significant relationship-specific investments (high switching cost), when suppliers face less concentrated customer bases, or when customers face more concentrated supplier bases. Our results show that customers receive less favourable trade terms and are forced to pay more for inputs after their suppliers go public, all of which increase customers’ operational costs, risk and subsequent borrowing costs. Furthermore, we document that customer loan contracts become significantly more restrictive after a supplier's IPO. Finally, we find that the observed negative spillover effect is also present in customers’ access to the public bond market.
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Predicting IPO First-Day Returns: Evidence From Machine Learning Analyses
Gonul Colak, Mengchuan Fu, Iftekhar Hasan
Journal of Banking and Finance,
Vol. 178 (September),
2025
Abstract
Predicting IPO first-day returns is inherently challenging due to the wide range of contributing factors, each with distinct statistical properties. We assess the performance of several machine learning (ML) techniques and identify XGBoost as the most statistically effective model for forecasting first-day returns. Using a comprehensive set of 863 pre-IPO variables, our high-performing predictive model accurately estimates both the direction and magnitude of IPO first-day returns. The most influential predictors include underwriter agency measures, price revision, and the free-float fraction. Using a rolling-window predictive approach, the model demonstrates substantial practical value, generating approximately $300 billion in gains from IPOs with positive first-day returns and avoiding more than $22 billion in losses from those with negative returns over the 2000–2016 period.
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Do Markets Value Manager-investor Interaction Quality? Evidence from IPO Returns
Shibo Bian, Iftekhar Hasan, Xunxiao Wang, Zhipeng Yan
Review of Quantitative Finance and Accounting,
Vol. 63 (August),
2024
Abstract
This paper investigates the impact of manager-investor interaction quality on stock returns by utilizing an online IPO roadshow dataset and leveraging a word-embedding model. We find that such interactions are positively valued, as reflected in initial returns. The effect is particularly pronounced for firms characterized by higher levels of information asymmetry, greater investor attention, increased question uncertainty, or discussions on topics not covered in prospectus. Additionally, our research reveals that effective management communication leads to increased first-day turnover rates and thus higher returns. These heightened returns persist up to 180 days following the IPO, without displaying a significant long-term reversal associated with interaction quality. These findings underscore the meaningful impact of the quality of manager-investor interactions on firm valuation.
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Der Börsengang und die interne Organisation des Unternehmens
Daniel Bias, Benjamin Lochner, Stefan Obernberger, Merih Sevilir
Wirtschaft im Wandel,
Nr. 1,
2024
Abstract
In diesem Beitrag wird untersucht, wie Unternehmen ihre Organisation anpassen, wenn sie erstmalig an die Börse gehen (initial public offering, IPO). Im Zuge des Börsengangs wandeln sich Unternehmen in eine hierarchischere Organisation um und verstärken die Aufsicht durch das Management. Organisatorische Funktionen in den Bereichen Rechnungswesen, Finanzen, Informationstechnologie und Personalwesen gewinnen an Bedeutung. Sie tauschen einen großen Teil ihrer Belegschaft und fast ihr gesamtes Management aus, um ihr Humankapital an die neue Organisation anzupassen. Die neue Organisation erleichtert interne Versetzungen und Beförderungen. Insgesamt ist das Unternehmen durch den Börsengang einem Wandel unterworfen, der die Abhängigkeit des Unternehmens von einzelnen Beschäftigten verringert und den Produktionsprozess effizient organisiert.
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