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Deep End Era. Engineering with Sankalp

by Sankalp Thakur

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Latest episodes

Demographic Trends and Real Interest Rates: Laubach-Williams r, Summers Secular Stagnation, Eggertsson-Mehrotra-Robbins OLG, Goodhart-Pradhan Great Demographic Reversal, and Dependency Ratio Dissaving

October 29, 2026 · 1 hr 18 min

Fertility rates in South Korea, Japan, Italy, and China have plunged well below replacement while longevity keeps rising. Does an aging world face decades of secular stagnation and negative natural real interest rates as capital-to-labor…
How Will LLMs Change the Structure of Firms? Coasean Transaction Costs, Grossman-Hart-Moore Property Rights, Garicano's Knowledge Hierarchies, Span of Control, and Make-vs-Buy Boundaries

October 29, 2026 · 1 hr 11 min

When a twenty-one-year-old Ronald Coase asked why the economy is not run as one giant firm or as millions of solo contractors trading on spot markets, his answer was transaction costs: the cost of discovering prices, negotiating contracts…
Is Economic Convergence Always a Temporary Phenomenon? Solow-Swan Transitional Dynamics, Barro's Law, Rodrik's Unconditional Manufacturing Convergence, Middle-Income Traps, and Institutional Reversals

October 29, 2026 · 1 hr 13 min

Every rapid growth miracle in modern history—post-war Germany and Japan, the Soviet industrialization drive of the 1950s, Brazil in the 1960s and 1970s, South Korea and Taiwan in the 1980s, and China from 1980 to 2015—eventually slowed…
Statistical Arbitrage, Cointegration, and Regime-Switching Signals: Ornstein-Uhlenbeck Mean Reversion, Johansen Cointegration, Hidden Markov Regimes, and the August 2007 Quant Quake

October 29, 2026 · 1 hr 50 min

Welcome to The Deep End. This is Episode four hundred thirty-eight: Statistical Arbitrage, Cointegration, and Regime-Switching Signals: Ornstein-Uhlenbeck Mean Reversion, Johansen Cointegration, Hidden Markov Regimes, and the August 2007…
Market Microstructure and Adverse Selection: Bid-Ask Bounce, Roll's Measure, Glosten-Milgrom, Kyle's Lambda, Order Flow Toxicity (VPIN), and Maker-Taker Economics

October 29, 2026 · 1 hr 19 min

If a market maker buys at the Bid and sells one cent higher at the Ask ten thousand times a day, why can they still go bankrupt by four in the afternoon? In Part Two of our Quantitative Finance series, we derive the mathematics of Adverse…

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Replication Topologies, Logical Decoding, Change Data Capture (CDC), Split-Brain Fencing, and DBSP Incremental View Maintenance

October 29, 2026 · 1 hr 4 min

How do you stream every row change out of a primary transactional database into search indexes, caches, and real-time materialized views without ever missing a commit, corrupting an initial snapshot, suffering a split-brain primary during…
Will the Renminbi Become a Top International Currency Any Time Soon?

October 29, 2026 · 1 hr 6 min

China is the world's largest merchandise exporter, the largest trading partner for over 120 countries, and accounts for roughly 18 percent of global GDP. Yet in the International Monetary Fund's Currency Composition of Official Foreign…
If Higher Minimum Wages Do Not Cut Employment, Where Do They Bite? Prices, Amenities, Automation and Firm Exit

October 29, 2026 · 1 hr 14 min

When a government raises the statutory minimum wage by twenty percent and aggregate low-wage employment barely budges, does that mean the minimum wage is a free lunch? No—because an accounting identity requires that every pound of higher…
Do Economic Sanctions Work? Evidence, Bargaining, Russia's Oil Price Cap, Shadow Fleets and Financial Weaponization

October 29, 2026 · 1 hr 14 min

If a coalition controlling half of world GDP cuts an adversary off from Western banks, semiconductor fabs, and maritime insurance, why doesn't the target regime capitulate within months? We build the economics and game theory of sanctions…
How Should Firms Be Incentivised to Innovate? Arrow, Schumpeter, Nordhaus, Kremer, R&D Tax Credits and Idea Productivity

October 29, 2026 · 1 hr 8 min

Once a molecule is synthesized or an algorithm is proved, anyone can copy the blueprint at near-zero marginal cost—yet discovering that blueprint takes years of risky capital. If we grant broad twenty-year monopoly patents, patients and…
Have Limited Liability Laws Done More Harm Than Good? Risk Shifting, Tort Externalities, Banking History and Environmental Liabilities

October 29, 2026 · 1 hr 7 min

Every time you buy a share of stock for a hundred dollars, the law guarantees that the worst thing that can ever happen to you is losing that hundred dollars—even if the company causes a ten-billion-dollar oil spill, toxic chemical leak…
Why Are Global Current Account Imbalances Persistent? Saving Gluts, Safe Assets, Savings Suppression, Triffin and Lucas

October 29, 2026 · 1 hr 8 min

Every introductory economics textbook teaches that trade deficits are self-correcting, and that capital should flow from capital-rich advanced economies to capital-scarce developing nations. In the real world, the United States has run a…

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About the show

Long-form engineering, computing and mathematics. Created by Sankalp Thakur. A Transient Labs production. Website: https://transientlabs.ai/the-deep-end GitHub: https://github.com/sankalpsthakur X: https://x.com/sankalpsthakur LinkedIn: https://www.linkedin.com/in/sankalpthakur/ Hugging Face: https://huggingface.co/sankalpsthakur Scripts: Claude Opus. Synthetic narration: Edge TTS (episodes 1–96) and Kokoro, credited per episode. Reviewed, listened to and approved by Sankalp Thakur.