With Bloomberg you get the story behind the story, the story behind the global birth rate,

behind your EV batteries environmental impact, behind sand. Yeah, sand, you get context.

And context changes everything. Go to Bloomberg.com to get context. Welcome to the Bloomberg surveillance podcast. I'm Tom Keene.

Daily, we bring you insight from the best in economics finance investment and international relations find

Bloomberg surveillance on Apple Podcasts soundcloud bloomer.com and of course on the

Bloomberg. For we to get right to this interview, we have two incredibly exceptional guests with us today, and it is an honor to have

them here together and we're going to speak on one theme. Lord Tyson needs no

introduction to anyone within our economic academics and particularly within public service.

She is a former chairman of the President's Council of Economic Advisors and is also teaching

at the University of California at Berkeley Haas School.

With us, each and every year it seems at Davos, maybe I think that's correct, is Kenneth

Rogoff, his book of last year, The Curse of Cash, was my Book of the Year.

I make a joke that the next effort will be the Curse of Bitcoin.

But to have the two of you here with your academics, I want to clear the air on the debate at the end of 2017,

which is do tax cuts drive economic growth.

The center points of this was Kevin Hassan, Professor Tyson, who has your job now at the White House,

Chairman of the President's Council of Economic Advisors,

and the Lorry at Paul Krugman of Princeton, I'd say driving the dialogue with many others, Ken, as we saw.

Ken, out of Opsfeld, Rogoff, out of your other work over the years, is there a certitude that tax cuts can drive permanent economic growth?

Well, okay, I mean lower tax rates if you could somehow magically produce the government spending and revenues you need from oil or something else

Sure, but you know in the long run you have to pay for government services.

And by the way, in this age of inequality,

...