Michael Pearson, chairman of the board and chief executive officer of Valeant Pharmaceuticals: His methods  proved he didn’t have much patience for research and development. Photograph: Christinne Muschi/Reuters

Valeant Pharmaceuticals is a sleazy company. Although it existed before 2010, it did a deal that year that put it on the map. The deal was with Biovai(...)

Botox is one of Allergan’s products. Photograph: Bloomberg

On Wall Street, financial engineering masquerades as vision. When it works, you get to be called the Oracle of somewhere or other. If it works for onl(...)