I'm amused by "fair share" bullshit. That's just code for "You should pay more so I can pay less, and bring you down a little closer to my circumstances". It is really someone's "fair share" to have a total incremental income tax rate of about 75%, as Bernie proposes for the citizens of California, New York, and Oregon? As for corporations, there isn't a fair share, there's a competitive tax rate. If US corporate taxes are too high they move operations to lower-tax countries, like Ireland. Also, governments bid for corporate investments all the time, as they did with Amazon. The same is true for countries. Why do you think a good part of the Boeing 777 is made in Japan (like the wings)? Or why Intel has two chip fabrication plants in Israel?