prior to the earnings announcement day (EAD) reflecting a bimodal risk-neutral distribution for the underlying stock price …-ante option-based signal for event risk in the underlying stock. Returns on delta-neutral straddles around EADs are significantly … lower in the presence of concave IV curves, showing that investors pay a high premium to hedge against this event risk …

; Germany pre-1913 ; Cartel ; Productive efficiency ; Corporate Governance …

precisely, we consider the Rhenish-Westphalian Coal Syndicate, a coal cartel that operated in Imperial Germany in the late 19th … event study methodology to asses the reaction of the stock market to the foundation of the cartel and two major revisions of … data in a dynamic panel data framework. Overall, our results suggest that the investigated cartel had no significant effect …