activity
20172024
most citedCollective Dynamics of Dark Web Marketplaces

67 citations · 151 across the 14 of their papers we have counts for

collaborators

15 papers

econ.TH2024

The Economics of Equilibrium with Indivisible Goods

Ravi Jagadeesan, Alexander Teytelboym

This paper develops a theory of competitive equilibrium with indivisible goods based entirely on economic conditions on demand. The key idea is to analyze complementarity and subst…

physics.soc-ph2023★ 1 cited

Optimizing Sponsored Humanitarian Parole

Fatemeh Farajzadeh, Ryan B. Killea, Alexander Teytelboym +1

The United States has introduced a special humanitarian parole process for Ukrainian citizens in response to Russia 2022 invasion of Ukraine. To qualify for parole, Ukrainian appli…

physics.soc-ph2023

Identifying key players in dark web marketplaces

Elohim Fonseca dos Reis, Alexander Teytelboym, Abeer ElBahraw +2

Dark web marketplaces have been a significant outlet for illicit trade, serving millions of users worldwide for over a decade. However, not all users are the same. This paper aims…

econ.TH2023★ 1 cited

Dynamic Combinatorial Assignment

Thành Nguyen, Alexander Teytelboym, Shai Vardi

We study a model of dynamic combinatorial assignment of indivisible objects without money. We introduce a new solution concept called ``dynamic approximate competitive equilibrium…

econ.TH2022

The Combinatorial Multi-Round Ascending Auction

Bernhard Kasberger, Alexander Teytelboym

The Combinatorial Multi-Round Ascending Auction (CMRA) is a new auction format used in recent European spectrum auctions. We show that an auction-specific version of truthful biddi…

physics.soc-ph2021

Macroscopic properties of buyer-seller networks in online marketplaces

Alberto Bracci, Jörn Boehnke, Abeer ElBahrawy +3

Online marketplaces are the main engines of legal and illegal e-commerce, yet their empirical properties are poorly understood due to the absence of large-scale data. We analyze tw…