Also note: Labor share has declined similarly across OECD countries for several decades.
Automation, robots, software etc. they are all capital share.
Employee compensation comes from capital. And employees are working at companies that provide robots, etc.
There's a return on capital than is not spent on employees. That reflects how much capital is growing and how much can be spent on employees in the future.
> Automation, robots, software etc. they are all capital share.
I highly doubt automation and robots are a meaningful factor here, but IP and outsourcing have the exact same as automation.