New UBS CEO, Sergio Ermotti, plans to scale down UBS investment banking operations because of stricter regulations and a changing market environment. He said in an interview that UBS will go back to what it was in the 1990's, that he now sees the investment banking boom of the last ten years as an aberration. He also sees rival banks taking the same route. The plan is to shrink risk-weighted assets from 300 billion Swiss francs today to 145 billion Swiss francs by scaling back or exiting in areas such as asset securitization, complex fixed income structured products and trading in some equity products. UBS will cut 2000 investment banking jobs to 16,500 in 2013. The focus will shift to foreign exchange, commodities and mergers and acquisitions. Investment banking made a profit for only one of the last 4 years, taking up two thirds of the bank's capital and earning 26% of the group's the pretax profit in the last year. The new plan will reduce the size of the investment bank so that it makes up less than half of the group assets by 2016....