Monday Papers: tips and comment

FT Lex Comment:

* US litigation -- a regulatory reform bill might make it easier for foreign investors, in foreign companies, on foreign exchanges, to seek compensation in the US

* Output gaps -- it is almost impossible to measure an output gap with any accuracy. So how on earth doe you measure an economy's potential?

* Utility players -- Warren Buffett's pending $26 billion buy-out of railroad Burlington Northern Santa Fe is yet another sign that we have entered a low-return world.

Other comment: