118 citations · 255 across the 17 of their papers we have counts for
19 papers
What sets the critical genome length for sympatric speciation? A closed form and asymptotic theory
Dan Braha, Marcus A. M. de Aguiar, Vitor M. Marquioni
In the Derrida--Higgs model of sympatric speciation, a sexually reproducing population with finite binary genomes can mate only when the genetic overlap between two individuals exc…
Majority Correctness in Social Networks: From Well-Mixed Electorates to Complex Networks
Dan Braha, Marcus A. M. de Aguiar
We study majority correctness when voting is preceded by sustained social interaction on a social network. Motivated by the Condorcet Jury Theorem, we consider a binary choice with…
Selection Mechanisms, Stationary Distributions, and Reversibility in Multiallelic Moran Models
Dan Braha, Marcus A M de Aguiar
The Moran process with selection and recurrent mutation is a classical model in population genetics, yet how the placement of selection within the update rule shapes the stationary…
The multi-allelic Moran process as a multi-zealot voter model: exact results and consequences for diversity thresholds
Dan Braha, Marcus A. M. de Aguiar
The Moran process is a foundational model of genetic drift and mutation in finite populations. In its standard two-allele form with population size , allele counts, and hence al…
Generalizing Condorcet's Jury Theorem to Social Networks
Dan Braha, Marcus A. M. de Aguiar
We generalize Condorcet's jury theorem (CJT) to socially connected populations in which agents revise discrete choices on a network in the presence of zealots. Free agents receive…
Emergence of Collective Accuracy in Socially Connected Networks
Dan Braha, Marcus A. M. de Aguiar
We analyze the accuracy of collective decision-making in socially connected populations, where agents update binary choices through local interactions on a network. Each agent rece…