Sue Halpern reviews “Blockchain Revolution: How the Technology Behind Bitcoin Is Changing Money, Business, and the World” by Don Tapscott and Alex Tapscott, and “Attack of the Fifty Foot Blockchain: Bitcoin, Blockchain, Ethereum and Smart Contracts” by David Gerard. (Dec. 21, 2017)

The effusive praise for this cryptocurrency is nothing but self-generated flimflam. By Christopher Whalen.

The opening of a canal in 1848 led to the birth of modern financial derivatives, and the early demise of some of the men who traded them. By Michael Durbin.