Ferguson wrote a two-volume history of N M Rothschild & Sons and its sister houses in Frankfurt, Paris, Vienna and Naples, covering roughly 1798 to 1999. He worked from the family's own archive, including thousands of letters the brothers wrote each other in a Hebrew-script German dialect that earlier historians could not read. The result is a business history built on partnership accounts, bond prospectuses and internal correspondence rather than on secondary legend.
The central argument is that the Rothschilds became the largest private financial institution of the nineteenth century by dominating one product: sovereign bond underwriting and distribution. Their advantages were a multinational partnership structure that let them arbitrage between five capitals, a private courier network that delivered political and price information faster than governments had it, and a family constitution that kept capital undivided by restricting partnership to male descendants and encouraging cousin marriage. Ferguson also argues they exercised real influence over war and peace by deciding which states could borrow, while rejecting the conspiratorial version of that claim.
The second volume explains the relative decline. The house stayed a partnership when rivals became joint-stock banks, largely avoided American industrial finance and the new corporate securities business, and lost ground to Morgan and the German universal banks. Ferguson treats the twentieth century, including expropriation in Austria and the postwar rebuilding, more briefly.
Critics have said Ferguson is too generous to his subjects, who granted him archive access, and that the density of bond issues and family detail buries the analysis. The financial-power thesis is also contested by historians who think he overstates how much bankers constrained states.
Investors and operators who want a documented case study of how information advantage, capital structure and family governance sustained a financial franchise for a century, and how the same choices ended it.
Historian and senior fellow at the Hoover Institution, Stanford; previously taught at Oxford, Harvard and NYU Stern.
The Ascent of Money traces credit, bond markets, joint-stock equity, insurance and property finance from their origins, giving investors the institutional history behind instruments they price every day. The House of Rothschild and High Financier examine how two banking houses actually made money and managed sovereign and political risk over long periods.
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