Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
We produce the first study to explore the effect of political money contributions on IPOs. Exploiting a hand-collected database, we show that both lobbying and PAC expenditure pay off on issue day as donors incur less underpricing, an effect that can be amplified by contribution size and strategic targeting of recipients. Investigating the causes in multiple channels, we also associate donor IPOs with negative offer price revisions and lower aftermarket volatility. Collectively, our results offer new empirical grounding to the information asymmetry theory.