Mr. Ahamed has a pleasant style, and he writes short, welcoming chapters ... What Mr. Ahamed withholds are the strong, respectable arguments to embrace, not to shun, the boogeyman that Federal Reserve economists style 'deflation' but that a layman might rather recognize as human progress ... Mr. Ahamed, an unapologetic silver man, goes so far in his advocacy of remedial government action as to suborn the long-departed author of Lombard Street, published in 1873, to bear false witness.