Orlando Stoics

This week we shift from monetary structure to the architecture of credit itself. Who gets to borrow, on what terms, and through what instruments? When financial innovation extends capital to borrowers the establishment had written off, who benefits, who bears the risk, and what happens when the innovation outgrows its original purpose?

Each of the three figures we will discuss did the same thing in radically different settings. They extended a medium of exchange to people the existing system had excluded. Money, credit, and securities are not neutral tools. They are mechanisms of inclusion, and historically they have reached only certain kinds of borrowers: the propertied, the rated, the collateralized, the well-connected. Yunus, Ranieri, and Milken each found a population the system would not lend to and built an instrument to reach them. The promise was always the same: broader access, lower cost, more participants in the economy. The complication, in each case, was what happened once the new instrument scaled.

We begin with Muhammad Yunus, the Bangladeshi economist who pioneered microfinance through the founding of Grameen Bank. In 1976, near Chittagong University, Yunus began experimenting with tiny loans to villagers traditional banks dismissed as too poor to serve. His insight was radical in its simplicity. Poverty is not the product of incompetence but of a credit system designed to exclude the poor. Grameen's group-lending model, built around mostly female borrowers, achieved very high repayment rates and inspired imitators worldwide. Yunus and the bank received the 2006 Nobel Peace Prize. Yet microfinance has not delivered everything it promised. Some studies find limited evidence of lasting poverty reduction, and high-interest lenders in certain countries have pushed borrowers deeper into debt. The question Yunus leaves with us is whether the economy can be redesigned to serve people, or whether it quietly returns to serving itself.

We then turn to Lewis Ranieri, the Brooklyn-born college dropout who joined Salomon Brothers' mailroom in 1968 and rose to Vice Chairman. In the late 1970s, on a then-overlooked mortgage trading desk, Ranieri helped invent the mortgage-backed security and coined the word "securitization." Before his work, a bank that issued a mortgage had to hold it for thirty years, which tied up capital and limited lending. Ranieri's idea was to pool thousands of mortgages and sell their cash flows as bonds to investors around the world. He fought a decade-long battle in Washington to make these securities legal and tradeable, and by the mid-1980s the market had grown into the hundreds of billions. The innovation expanded homeownership and lowered borrowing costs. It also separated those who made loans from those who held the risk, which critics argue eroded underwriting discipline and helped set the stage for 2008. Ranieri has long argued that the concept was not the problem. Its misuse was. The deeper question is whether any powerful instrument can be trusted to remain in honest hands once it has shown what it can do.

Finally we come to Michael Milken, who built the modern high-yield bond market at Drexel Burnham Lambert. Milken's insight, developed at Berkeley and refined at Wharton, was that the bond market systematically undervalued non-investment-grade debt. Rating agencies treated companies without an investment-grade stamp as untouchable, even when their default-adjusted yields were attractive. Through the 1970s and 1980s, Milken built a network of issuers and buyers that opened the bond market to smaller firms, distressed companies, and a new generation of corporate raiders. Junk bonds financed the leveraged buyout boom and transformed corporate America. In 1989, Milken was indicted on securities fraud and racketeering charges. He later devoted himself to philanthropy and the Milken Institute and received a presidential pardon in 2020.

The discussion will focus on what these three architects share and where they diverge. Each identified a group of people the financial system had pushed aside. Each built a mechanism to bring them in. Each watched his innovation be celebrated and then implicated in later abuses. Was the problem the innovation itself, or how others wielded it? And what does the recurring cycle of expansion, crisis, and reform tell us about the structure of modern finance?

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CALENDARIO
EPICTETO DISERTACIONES POR ARRIANO

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5/6/2026 XVIII QUE NO HAY QUE ENFURECERSE CON QUIENES SE EQUIVOCAN
5/13/2026 XIX QUÉ ACTITUD HAY QUE MANTENER FRENTE A LOS TIRANOS
5/20/2026 XX DE CÓMO LA RAZÓN ES ESPECULATIVA SOBRE SÍ MISMA
5/27/2026 XXI A LOS QUE QUIEREN SER ADMIRADOS
6/3/2026 XXII SOBRE LAS PRESUNCIONES
6/10/2026 XXIII EN RESPUESTA A EPICURO
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6/24/2026 XXV SOBRE LO MISMO
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7/22/2026 XXIX SOBRE EL APLOMO
7/29/2026 XXX QUÉ HAY QUE TENER A MANO EN LAS DIFICULTADES

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