Bertolt Brecht's observation in The Threepenny Opera that eating takes precedence over morality. - Satyajit Das

"Fashion models and financial models are similar. They bear a similar relationship to everyday world. Like supermodels, financial models are idealized representations of the real world, they are not real, they don't quite work the way that the real world works. There is celebrity in both worlds. In the end, there is the same inevitable disappointment" - Satyajit Das, Traders, Guns & Money

The world is entering a period of stagnation, the new mediocre. The end of growth and fragile, volatile economic conditions are now the sometimes silent background to all social and political debates...

A confluence of influences is behind the ignominious end of an era of unprecedented economic expansion. Since the early 1980's, economic activity and growth has been increasingly driven by financialisation - the replacement of industrial activity with financial trading, and increased levels of borrowing to finance consumption and investment. By 2007, US$5 of new debt was necessary to create an additional US$1 of American economic activity, a fivefold increase from the 1950s.... Ever-increasing amounts of debt now act as a brake on growth.

These financial problems are compounded by lower population growth and ageing populations; slower increases in productivity and innovation; looming shortages of critical resources, such as water, food and energy; and man-made climate change and extreme weather conditions. Slower growth in international trade and capital flows is another retardant. Emerging markets that have benefited from and, in recent times, supported growth are slowing. Rising inequality has an impact on economic activity.

In truth, a good chunk of activity in derivative markets is driven by speculation. Part of it is obscured by semantics; the boundary between speculation and investment is always hazy. If you lost money you speculated. If you made money you were investing. Or was it the other way around?