Do you think that market cap of Yahoo was increased by 151% in four years as a direct result of the number of hours worked? Could it have been done if she worked 50% less hours? A difficult question to answer with evidence.
> Do you think that market cap of Yahoo was increased by 151% in four years as a direct result of the number of hours worked?
No.
I believe it's probably true that she is compensated, in part, because of her brand which is highly associated with her dedication to working long hours.
I hedged quite a lot in my OP to try and convey that this was the only part that I was confident of.