By recently remembering the recent fall no farther away than 10 years of Lehman Brothers which brought to the entire globe the worst crisis in several generations as a consequence of the fall . The world  returns to the old ways putting in risk the return , a bad practice aggravated by the insistence of some countries, to exacerbate the commercial tensions.  All these occurrences create, according to the OECD, a new highly unpredictable scenario of “high uncertainty” that is already affected global growth, which is in a downward trend. And that, in addition, the growth of the countries begins to stop being, once again, measured, after a relatively quiet 2017 in terms of GDP increases in almost all the major economies. The problem is  of the emerging countries, which  add uncertainty to the forecasts.