Cryptocurrencies, or "digital coins" are terrible at being currencies and do not deserve to bear this name. Clams did much better with no other technology needed than bending over to pick them up from beaches in the XVIIth century. Making the case for clams being better currencies than digital coins hopefully also establishes that today's currencies such as Euro, Dollar, and Yen are much better currencies than digital coins.
First Jose Manuel Barroso, and now Mervyn King: in a few weeks of time, two high-profile politicians have turned to banks: Mr. Barroso joins Goldman Sachs, while Mr. King is heads to Citigroup. Many have criticized the 'revolving doors' and vilified the two former civil servants. But revolving doors are not as evil as is thought.
COP 21 has been over for about 6 months. Most observers were pretty optimistic back then, and it seemed clear to everyone that action was urgently required to tackle climate change. Some clarity is however still needed now, in order to better understand why economic agents didn’t already take action long ago, without waiting for governments to step up, and thus determine how we can effectively lead our society to improve toward a greener path of development.