Briac Sockalingum Briac Sockalingum

Briac Sockalingum

I study how technological and innovation systems (notably for blockchain & AI) reshape markets, platforms, and information access — using causal methods to measure what changes and mechanism design to think about what should. Current focus: the microeconomics of artificial agents — economics for decision-makers whose internal mechanisms can be observed and audited. Pre-doctoral researcher, previously at IMT Business School and Oxford Saïd Business School. UC Berkeley & Sciences Po alumnus. Ex tech management consultant at Wavestone. Building toward a PhD in economics and an entrepreneurial journey.

Paris · Sciences Po · briac@berkeley.edu · CV ↗

Do Structural Models Recover Mechanisms? Evidence from Neural Agents with Observable Internals

[working paper · 2026]

Paper #1 of the Microeconomics of Artificial Agents program

When a structural model is estimated on an agent's behavior, do the recovered parameters capture the agent's actual decision mechanism? With human data this is untestable; with neural agents the mechanism is fully observable. In solved dynamic discrete choice environments (Rust 1987), agents built on named bounded-rationality primitives show that in-class inattention is benignly absorbed into as-if parameters — counterfactuals survive — while out-of-class categorical cognition fails silently: 2–3% behavioral gaps yield badly biased structural estimates and 2× wrong policy predictions, with immaculate likelihoods. Linear probes detect none of this, but causal conformity audits of internal mechanisms rank-predict counterfactual failure ex ante (Spearman 0.87 / 0.80, including a pre-registered experiment).

Repository

When to Clean the Machine: A Rust Model of Codebase Rationalization in AI-Native Startups

[working paper · 2026]

Adapts Rust (1987)'s bus engine replacement model to the software context, treating codebase rationalization — the decision to rewrite fragmented, AI-generated "vibe-coded" infrastructure — as a lumpy, partially irreversible investment under uncertainty. AI shifts both structural objects at once: technical debt accumulates faster per unit of feature output, and AI agents make large rewrites cheaper — predicting rationalizations that become more frequent and less lumpy after AI adoption. Taken to a 14-repository open-source panel (2023–2025), with AI-tool release timing interacted with repository-level exposure as the identifying instrument.

The Jevons Paradox in LLMs: Do Efficiency Gains Offset Token Generation Growth?

[working paper · 2026]

with Pierre Noro (Sciences Po) & Alan Seroul (ENS Paris Saclay)

Investigates whether growth in token generation per query by modern LLMs offsets, partially or totally, the energy savings achieved through architectural and hardware improvements — applying the Jevons paradox framework to AI compute economics.

Cryptocurrency Adoption and Payment Systems in Developing Economies

[course paper · 2024]

with Thomas Noel (Paris School of Economics) · UC Berkeley INFO 134/234

Builds a producer-theory model of Bitcoin adoption for SMBs, incorporating network effects and exchange-rate volatility in economies considering crypto as legal tender. Extended from a graduate-level IT economics seminar.

Repository

YIELD

[FinTech · B2B SaaS · 2026–present]

co-founder · Canopy Fellow at Founders Inc. · Website ↗

French SMEs leave operational surplus idle at 0% while short-term rates sit above 3% — a firm with €150K idle forgoes thousands of euros a year, knows it, and never acts, because the effort-to-reward ratio is unfavorable. YIELD removes the decision: it connects the company's bank and accounting data (open banking, Pennylane), forecasts cash flow to compute a safe-to-invest surplus, and sweeps it into a regulated money-market fund (Spiko, AMF-authorized) with a weekly one-click approval. The distribution is the economics insight: sold through accountants as a recurring revenue stream for their practice, making the expert-comptable the distribution node, supervisor, and trust anchor. Grew from ETHGlobal hackathon wins (SF & Cannes) into a live product in France.

CompasSup & Clerko

[EdTech · 2022–2025]

COO & co-founder · Sciences Po incubator · Website ↗

Applied an economics-of-information framing to higher-education orientation in France — where students systematically under-sort into programs due to information asymmetry. Built from a free Parcoursup matching app into an AI-native platform automating university administrative workflows. 7k users, 12M social views, partnerships with public institutions. Then pivoted to making an AI-native ERP software to enable Higher Education Institutions to provide decent services and work processes to their students and collaborators ; got contracts and advanced leads with Europe top schools, but left the space as human-friendly innovation was hated in such organizations.

YIELD (Hackathon Project)

[DeFi · ETHGlobal SF + Cannes · 2024-2025]

co-builder · ETHGlobal showcase ↗

Cross-chain lending yield optimizer using MCP-powered multi-agent workflows. Designed around household purchasing-power and inflation framing in emerging economies — the mechanism design question being: can DeFi liquidity markets serve as a hedge when local monetary policy fails? Best consumer app award and best cross-chain DeFi use case at ETHGlobal San Francisco and Cannes.