We study voting rules for participatory budgeting, where a group of voters collectively
decides which projects should be funded using a common budget. We allow the projects to …

In this survey, we review the literature investigating participatory budgeting as a social
choice problem. Participatory Budgeting (PB) is a democratic process in which citizens are …

The ability to measure the satisfaction of (groups of) voters is a crucial prerequisite for
formulating proportionality axioms in approval-based participatory budgeting elections. Two …

When selecting a subset of candidates (a so-called committee) based on the preferences of
voters, proportional representation is often a major desideratum. When going beyond …

In the late 19th century, Swedish mathematician Edvard Phragmén proposed a load-
balancing approach for selecting committees based on approval ballots. We consider three …

Participatory Budgeting (PB) is a popular voting method by which a limited budget is divided
among a set of projects, based on the preferences of voters over the projects. PB is broadly …

We contribute to the programme of lifting proportionality axioms from the multi-winner voting
setting to participatory budgeting. We define novel proportionality axioms for participatory …

We introduce a family of normative principles to assess fairness in the context of
participatory budgeting. These principles are based on the fundamental idea that budget …

We provide the first large-scale data collection of real-world approval-based committee
elections. These elections have been conducted on the Polkadot blockchain as part of their …

We study voting rules for participatory budgeting, where a group of voters collectively
decides which projects should be funded using a common budget. We allow the projects to …