It's not rocket science (or, as one Twitter user recently suggested as a replacement for that phrase, " it's not corporate income-tax law"), but it will take a huge amount of political will in the United States and elsewhere to make substantive changes.

CNN: Don't feed the (polar) bears

Together with cuts in federal corporate income tax and a new capital-markets law that improved corporate-governance standards, this lifted Mexico 19 places to 43rd (out of 175 countries) in the World Bank's latest annual survey on the ease of doing business around the world.

ECONOMIST: Working in the official economy has its drawbacks

They were options for tax simplication, improving compliance with existing law and improving corporate income taxation.

FORBES: Live Blogging The President's Economic Recovery Advisory Board Meeting On Taxes

It is widely assumed that it would strike down any law openly breaking with one tradition of German taxation: that corporate- and income-tax rates must be about the same.

ECONOMIST: The prospects for tax reform recede, unfortunately