Trump can, like every government, trigger a short boom with borrowed money, just like he has announced. He appears to want to adopt the economic policy approach favored by Republicans of putting lots of money into building roads and cutting taxes. Markets like that. But, at the end of the day, someone always has to foot the bill.

Political uncertainty around the world has more than doubled since the election of Trump. To find anything comparable we have to go way back, to the late 1920s for example, the times of the Great Depression. Or think of the United Kingdom in the 1970s, when the International Monetary Fund had to help the country out with a dramatic rescue operation. Up until the Greek crisis, that was the last time that the IMF was forced to intervene to such an extent in Europe.

The rise of populist parties such as the Five Star Movement in Italy and the Front National in France are rocking the political certainties of the last decades. And that also affects the economy.

The U.S. and, to a certain extent, countries in Europe as well, have experienced growing inequality within their population for decades - a small group of people own the lion's share of the wealth. Populists take advantage of this, and their policies are extremely hard to predict. And this has serious consequences. Companies shy away from risk, postponing their investment decisions in times of uncertainty, the stock markets get nervous and unemployment threatens to increase.

Trump can, like every government, trigger a short boom with borrowed money, just like he has announced. He appears to want to adopt the economic policy approach favored by Republicans of putting lots of money into building roads and cutting taxes. Markets like that. But, at the end of the day, someone always has to foot the bill.

The Brexiteers promised their supporters wonderful things, almost none of which can ever come true. The billions that London transfers to Brussels will most certainly not land in the budget of the country's National Health Service. Brexit is going to be very bitter for many of its supporters.

The high-tech industry needs the immigration of highly qualified labor, from India, from China, from everywhere.